Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Nathan Scott | a805bad | 2006-06-19 08:40:27 +1000 | [diff] [blame] | 2 | * Copyright (c) 2000-2006 Silicon Graphics, Inc. |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 3 | * All Rights Reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License as |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * published by the Free Software Foundation. |
| 8 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 9 | * This program is distributed in the hope that it would be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write the Free Software Foundation, |
| 16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | */ |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 18 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | #include "xfs.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 20 | #include "xfs_bit.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | #include "xfs_log.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 22 | #include "xfs_inum.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #include "xfs_trans.h" |
| 24 | #include "xfs_sb.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 25 | #include "xfs_ag.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include "xfs_dir2.h" |
| 27 | #include "xfs_alloc.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | #include "xfs_quota.h" |
| 29 | #include "xfs_mount.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include "xfs_bmap_btree.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 31 | #include "xfs_alloc_btree.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #include "xfs_ialloc_btree.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #include "xfs_dinode.h" |
| 34 | #include "xfs_inode.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 35 | #include "xfs_btree.h" |
| 36 | #include "xfs_ialloc.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | #include "xfs_bmap.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include "xfs_rtalloc.h" |
| 39 | #include "xfs_error.h" |
| 40 | #include "xfs_itable.h" |
Christoph Hellwig | 9909c4a | 2007-10-11 18:11:14 +1000 | [diff] [blame] | 41 | #include "xfs_fsops.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #include "xfs_attr.h" |
| 43 | #include "xfs_buf_item.h" |
| 44 | #include "xfs_utils.h" |
Christoph Hellwig | 739bfb2 | 2007-08-29 10:58:01 +1000 | [diff] [blame] | 45 | #include "xfs_vnodeops.h" |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 46 | #include "xfs_log_priv.h" |
David Chinner | 249a8c1 | 2008-02-05 12:13:32 +1100 | [diff] [blame] | 47 | #include "xfs_trans_priv.h" |
Christoph Hellwig | 48b62a1 | 2008-05-20 11:30:39 +1000 | [diff] [blame] | 48 | #include "xfs_filestream.h" |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 49 | #include "xfs_da_btree.h" |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 50 | #include "xfs_extfree_item.h" |
| 51 | #include "xfs_mru_cache.h" |
| 52 | #include "xfs_inode_item.h" |
David Chinner | fe4fa4b | 2008-10-30 17:06:08 +1100 | [diff] [blame] | 53 | #include "xfs_sync.h" |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 54 | #include "xfs_trace.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | |
| 56 | #include <linux/namei.h> |
| 57 | #include <linux/init.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 58 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | #include <linux/mount.h> |
Christoph Hellwig | 0829c36 | 2005-09-02 16:58:49 +1000 | [diff] [blame] | 60 | #include <linux/mempool.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | #include <linux/writeback.h> |
Christoph Hellwig | 4df08c5 | 2005-09-05 08:34:18 +1000 | [diff] [blame] | 62 | #include <linux/kthread.h> |
Nigel Cunningham | 7dfb710 | 2006-12-06 20:34:23 -0800 | [diff] [blame] | 63 | #include <linux/freezer.h> |
Christoph Hellwig | 62a877e | 2008-07-18 17:12:36 +1000 | [diff] [blame] | 64 | #include <linux/parser.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | |
Alexey Dobriyan | b87221d | 2009-09-21 17:01:09 -0700 | [diff] [blame] | 66 | static const struct super_operations xfs_super_operations; |
David Chinner | 7989cb8 | 2007-02-10 18:34:56 +1100 | [diff] [blame] | 67 | static kmem_zone_t *xfs_ioend_zone; |
Christoph Hellwig | 0829c36 | 2005-09-02 16:58:49 +1000 | [diff] [blame] | 68 | mempool_t *xfs_ioend_pool; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 70 | #define MNTOPT_LOGBUFS "logbufs" /* number of XFS log buffers */ |
| 71 | #define MNTOPT_LOGBSIZE "logbsize" /* size of XFS log buffers */ |
| 72 | #define MNTOPT_LOGDEV "logdev" /* log device */ |
| 73 | #define MNTOPT_RTDEV "rtdev" /* realtime I/O device */ |
| 74 | #define MNTOPT_BIOSIZE "biosize" /* log2 of preferred buffered io size */ |
| 75 | #define MNTOPT_WSYNC "wsync" /* safe-mode nfs compatible mount */ |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 76 | #define MNTOPT_NOALIGN "noalign" /* turn off stripe alignment */ |
| 77 | #define MNTOPT_SWALLOC "swalloc" /* turn on stripe width allocation */ |
| 78 | #define MNTOPT_SUNIT "sunit" /* data volume stripe unit */ |
| 79 | #define MNTOPT_SWIDTH "swidth" /* data volume stripe width */ |
| 80 | #define MNTOPT_NOUUID "nouuid" /* ignore filesystem UUID */ |
| 81 | #define MNTOPT_MTPT "mtpt" /* filesystem mount point */ |
| 82 | #define MNTOPT_GRPID "grpid" /* group-ID from parent directory */ |
| 83 | #define MNTOPT_NOGRPID "nogrpid" /* group-ID from current process */ |
| 84 | #define MNTOPT_BSDGROUPS "bsdgroups" /* group-ID from parent directory */ |
| 85 | #define MNTOPT_SYSVGROUPS "sysvgroups" /* group-ID from current process */ |
| 86 | #define MNTOPT_ALLOCSIZE "allocsize" /* preferred allocation size */ |
| 87 | #define MNTOPT_NORECOVERY "norecovery" /* don't run XFS recovery */ |
| 88 | #define MNTOPT_BARRIER "barrier" /* use writer barriers for log write and |
| 89 | * unwritten extent conversion */ |
| 90 | #define MNTOPT_NOBARRIER "nobarrier" /* .. disable */ |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 91 | #define MNTOPT_64BITINODE "inode64" /* inodes can be allocated anywhere */ |
| 92 | #define MNTOPT_IKEEP "ikeep" /* do not free empty inode clusters */ |
| 93 | #define MNTOPT_NOIKEEP "noikeep" /* free empty inode clusters */ |
| 94 | #define MNTOPT_LARGEIO "largeio" /* report large I/O sizes in stat() */ |
| 95 | #define MNTOPT_NOLARGEIO "nolargeio" /* do not report large I/O sizes |
| 96 | * in stat(). */ |
| 97 | #define MNTOPT_ATTR2 "attr2" /* do use attr2 attribute format */ |
| 98 | #define MNTOPT_NOATTR2 "noattr2" /* do not use attr2 attribute format */ |
| 99 | #define MNTOPT_FILESTREAM "filestreams" /* use filestreams allocator */ |
| 100 | #define MNTOPT_QUOTA "quota" /* disk quotas (user) */ |
| 101 | #define MNTOPT_NOQUOTA "noquota" /* no quotas */ |
| 102 | #define MNTOPT_USRQUOTA "usrquota" /* user quota enabled */ |
| 103 | #define MNTOPT_GRPQUOTA "grpquota" /* group quota enabled */ |
| 104 | #define MNTOPT_PRJQUOTA "prjquota" /* project quota enabled */ |
| 105 | #define MNTOPT_UQUOTA "uquota" /* user quota (IRIX variant) */ |
| 106 | #define MNTOPT_GQUOTA "gquota" /* group quota (IRIX variant) */ |
| 107 | #define MNTOPT_PQUOTA "pquota" /* project quota (IRIX variant) */ |
| 108 | #define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */ |
| 109 | #define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */ |
| 110 | #define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */ |
| 111 | #define MNTOPT_QUOTANOENF "qnoenforce" /* same as uqnoenforce */ |
Christoph Hellwig | e84661a | 2011-05-20 13:45:32 +0000 | [diff] [blame] | 112 | #define MNTOPT_DELAYLOG "delaylog" /* Delayed logging enabled */ |
| 113 | #define MNTOPT_NODELAYLOG "nodelaylog" /* Delayed logging disabled */ |
| 114 | #define MNTOPT_DISCARD "discard" /* Discard unused blocks */ |
| 115 | #define MNTOPT_NODISCARD "nodiscard" /* Do not discard unused blocks */ |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 116 | |
Christoph Hellwig | 62a877e | 2008-07-18 17:12:36 +1000 | [diff] [blame] | 117 | /* |
| 118 | * Table driven mount option parser. |
| 119 | * |
| 120 | * Currently only used for remount, but it will be used for mount |
| 121 | * in the future, too. |
| 122 | */ |
| 123 | enum { |
| 124 | Opt_barrier, Opt_nobarrier, Opt_err |
| 125 | }; |
| 126 | |
Steven Whitehouse | a447c09 | 2008-10-13 10:46:57 +0100 | [diff] [blame] | 127 | static const match_table_t tokens = { |
Christoph Hellwig | 62a877e | 2008-07-18 17:12:36 +1000 | [diff] [blame] | 128 | {Opt_barrier, "barrier"}, |
| 129 | {Opt_nobarrier, "nobarrier"}, |
| 130 | {Opt_err, NULL} |
| 131 | }; |
| 132 | |
| 133 | |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 134 | STATIC unsigned long |
| 135 | suffix_strtoul(char *s, char **endp, unsigned int base) |
| 136 | { |
| 137 | int last, shift_left_factor = 0; |
| 138 | char *value = s; |
| 139 | |
| 140 | last = strlen(value) - 1; |
| 141 | if (value[last] == 'K' || value[last] == 'k') { |
| 142 | shift_left_factor = 10; |
| 143 | value[last] = '\0'; |
| 144 | } |
| 145 | if (value[last] == 'M' || value[last] == 'm') { |
| 146 | shift_left_factor = 20; |
| 147 | value[last] = '\0'; |
| 148 | } |
| 149 | if (value[last] == 'G' || value[last] == 'g') { |
| 150 | shift_left_factor = 30; |
| 151 | value[last] = '\0'; |
| 152 | } |
| 153 | |
| 154 | return simple_strtoul((const char *)s, endp, base) << shift_left_factor; |
| 155 | } |
| 156 | |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 157 | /* |
| 158 | * This function fills in xfs_mount_t fields based on mount args. |
| 159 | * Note: the superblock has _not_ yet been read in. |
| 160 | * |
| 161 | * Note that this function leaks the various device name allocations on |
| 162 | * failure. The caller takes care of them. |
| 163 | */ |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 164 | STATIC int |
| 165 | xfs_parseargs( |
| 166 | struct xfs_mount *mp, |
Christoph Hellwig | 288699f | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 167 | char *options) |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 168 | { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 169 | struct super_block *sb = mp->m_super; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 170 | char *this_char, *value, *eov; |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 171 | int dsunit = 0; |
| 172 | int dswidth = 0; |
| 173 | int iosize = 0; |
Christoph Hellwig | a568778 | 2009-02-09 08:37:39 +0100 | [diff] [blame] | 174 | __uint8_t iosizelog = 0; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 175 | |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 176 | /* |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 177 | * set up the mount name first so all the errors will refer to the |
| 178 | * correct device. |
| 179 | */ |
| 180 | mp->m_fsname = kstrndup(sb->s_id, MAXNAMELEN, GFP_KERNEL); |
| 181 | if (!mp->m_fsname) |
| 182 | return ENOMEM; |
| 183 | mp->m_fsname_len = strlen(mp->m_fsname) + 1; |
| 184 | |
| 185 | /* |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 186 | * Copy binary VFS mount flags we are interested in. |
| 187 | */ |
| 188 | if (sb->s_flags & MS_RDONLY) |
| 189 | mp->m_flags |= XFS_MOUNT_RDONLY; |
| 190 | if (sb->s_flags & MS_DIRSYNC) |
| 191 | mp->m_flags |= XFS_MOUNT_DIRSYNC; |
| 192 | if (sb->s_flags & MS_SYNCHRONOUS) |
| 193 | mp->m_flags |= XFS_MOUNT_WSYNC; |
| 194 | |
| 195 | /* |
| 196 | * Set some default flags that could be cleared by the mount option |
| 197 | * parsing. |
| 198 | */ |
| 199 | mp->m_flags |= XFS_MOUNT_BARRIER; |
| 200 | mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE; |
| 201 | mp->m_flags |= XFS_MOUNT_SMALL_INUMS; |
Christoph Hellwig | 20ad9ea | 2011-02-13 12:06:34 +0000 | [diff] [blame] | 202 | mp->m_flags |= XFS_MOUNT_DELAYLOG; |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 203 | |
| 204 | /* |
| 205 | * These can be overridden by the mount option parsing. |
| 206 | */ |
| 207 | mp->m_logbufs = -1; |
| 208 | mp->m_logbsize = -1; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 209 | |
| 210 | if (!options) |
| 211 | goto done; |
| 212 | |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 213 | while ((this_char = strsep(&options, ",")) != NULL) { |
| 214 | if (!*this_char) |
| 215 | continue; |
| 216 | if ((value = strchr(this_char, '=')) != NULL) |
| 217 | *value++ = 0; |
| 218 | |
| 219 | if (!strcmp(this_char, MNTOPT_LOGBUFS)) { |
| 220 | if (!value || !*value) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 221 | xfs_warn(mp, "%s option requires an argument", |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 222 | this_char); |
| 223 | return EINVAL; |
| 224 | } |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 225 | mp->m_logbufs = simple_strtoul(value, &eov, 10); |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 226 | } else if (!strcmp(this_char, MNTOPT_LOGBSIZE)) { |
| 227 | if (!value || !*value) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 228 | xfs_warn(mp, "%s option requires an argument", |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 229 | this_char); |
| 230 | return EINVAL; |
| 231 | } |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 232 | mp->m_logbsize = suffix_strtoul(value, &eov, 10); |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 233 | } else if (!strcmp(this_char, MNTOPT_LOGDEV)) { |
| 234 | if (!value || !*value) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 235 | xfs_warn(mp, "%s option requires an argument", |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 236 | this_char); |
| 237 | return EINVAL; |
| 238 | } |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 239 | mp->m_logname = kstrndup(value, MAXNAMELEN, GFP_KERNEL); |
| 240 | if (!mp->m_logname) |
| 241 | return ENOMEM; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 242 | } else if (!strcmp(this_char, MNTOPT_MTPT)) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 243 | xfs_warn(mp, "%s option not allowed on this system", |
Christoph Hellwig | 288699f | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 244 | this_char); |
| 245 | return EINVAL; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 246 | } else if (!strcmp(this_char, MNTOPT_RTDEV)) { |
| 247 | if (!value || !*value) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 248 | xfs_warn(mp, "%s option requires an argument", |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 249 | this_char); |
| 250 | return EINVAL; |
| 251 | } |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 252 | mp->m_rtname = kstrndup(value, MAXNAMELEN, GFP_KERNEL); |
| 253 | if (!mp->m_rtname) |
| 254 | return ENOMEM; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 255 | } else if (!strcmp(this_char, MNTOPT_BIOSIZE)) { |
| 256 | if (!value || !*value) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 257 | xfs_warn(mp, "%s option requires an argument", |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 258 | this_char); |
| 259 | return EINVAL; |
| 260 | } |
| 261 | iosize = simple_strtoul(value, &eov, 10); |
Christoph Hellwig | 1ec7944 | 2008-10-30 17:55:08 +1100 | [diff] [blame] | 262 | iosizelog = ffs(iosize) - 1; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 263 | } else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) { |
| 264 | if (!value || !*value) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 265 | xfs_warn(mp, "%s option requires an argument", |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 266 | this_char); |
| 267 | return EINVAL; |
| 268 | } |
| 269 | iosize = suffix_strtoul(value, &eov, 10); |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 270 | iosizelog = ffs(iosize) - 1; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 271 | } else if (!strcmp(this_char, MNTOPT_GRPID) || |
| 272 | !strcmp(this_char, MNTOPT_BSDGROUPS)) { |
| 273 | mp->m_flags |= XFS_MOUNT_GRPID; |
| 274 | } else if (!strcmp(this_char, MNTOPT_NOGRPID) || |
| 275 | !strcmp(this_char, MNTOPT_SYSVGROUPS)) { |
| 276 | mp->m_flags &= ~XFS_MOUNT_GRPID; |
| 277 | } else if (!strcmp(this_char, MNTOPT_WSYNC)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 278 | mp->m_flags |= XFS_MOUNT_WSYNC; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 279 | } else if (!strcmp(this_char, MNTOPT_NORECOVERY)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 280 | mp->m_flags |= XFS_MOUNT_NORECOVERY; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 281 | } else if (!strcmp(this_char, MNTOPT_NOALIGN)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 282 | mp->m_flags |= XFS_MOUNT_NOALIGN; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 283 | } else if (!strcmp(this_char, MNTOPT_SWALLOC)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 284 | mp->m_flags |= XFS_MOUNT_SWALLOC; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 285 | } else if (!strcmp(this_char, MNTOPT_SUNIT)) { |
| 286 | if (!value || !*value) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 287 | xfs_warn(mp, "%s option requires an argument", |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 288 | this_char); |
| 289 | return EINVAL; |
| 290 | } |
| 291 | dsunit = simple_strtoul(value, &eov, 10); |
| 292 | } else if (!strcmp(this_char, MNTOPT_SWIDTH)) { |
| 293 | if (!value || !*value) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 294 | xfs_warn(mp, "%s option requires an argument", |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 295 | this_char); |
| 296 | return EINVAL; |
| 297 | } |
| 298 | dswidth = simple_strtoul(value, &eov, 10); |
| 299 | } else if (!strcmp(this_char, MNTOPT_64BITINODE)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 300 | mp->m_flags &= ~XFS_MOUNT_SMALL_INUMS; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 301 | #if !XFS_BIG_INUMS |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 302 | xfs_warn(mp, "%s option not allowed on this system", |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 303 | this_char); |
| 304 | return EINVAL; |
| 305 | #endif |
| 306 | } else if (!strcmp(this_char, MNTOPT_NOUUID)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 307 | mp->m_flags |= XFS_MOUNT_NOUUID; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 308 | } else if (!strcmp(this_char, MNTOPT_BARRIER)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 309 | mp->m_flags |= XFS_MOUNT_BARRIER; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 310 | } else if (!strcmp(this_char, MNTOPT_NOBARRIER)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 311 | mp->m_flags &= ~XFS_MOUNT_BARRIER; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 312 | } else if (!strcmp(this_char, MNTOPT_IKEEP)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 313 | mp->m_flags |= XFS_MOUNT_IKEEP; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 314 | } else if (!strcmp(this_char, MNTOPT_NOIKEEP)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 315 | mp->m_flags &= ~XFS_MOUNT_IKEEP; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 316 | } else if (!strcmp(this_char, MNTOPT_LARGEIO)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 317 | mp->m_flags &= ~XFS_MOUNT_COMPAT_IOSIZE; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 318 | } else if (!strcmp(this_char, MNTOPT_NOLARGEIO)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 319 | mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 320 | } else if (!strcmp(this_char, MNTOPT_ATTR2)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 321 | mp->m_flags |= XFS_MOUNT_ATTR2; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 322 | } else if (!strcmp(this_char, MNTOPT_NOATTR2)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 323 | mp->m_flags &= ~XFS_MOUNT_ATTR2; |
| 324 | mp->m_flags |= XFS_MOUNT_NOATTR2; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 325 | } else if (!strcmp(this_char, MNTOPT_FILESTREAM)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 326 | mp->m_flags |= XFS_MOUNT_FILESTREAMS; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 327 | } else if (!strcmp(this_char, MNTOPT_NOQUOTA)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 328 | mp->m_qflags &= ~(XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE | |
| 329 | XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE | |
Christoph Hellwig | 469fc23 | 2008-10-30 17:54:57 +1100 | [diff] [blame] | 330 | XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE | |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 331 | XFS_UQUOTA_ENFD | XFS_OQUOTA_ENFD); |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 332 | } else if (!strcmp(this_char, MNTOPT_QUOTA) || |
| 333 | !strcmp(this_char, MNTOPT_UQUOTA) || |
| 334 | !strcmp(this_char, MNTOPT_USRQUOTA)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 335 | mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE | |
| 336 | XFS_UQUOTA_ENFD); |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 337 | } else if (!strcmp(this_char, MNTOPT_QUOTANOENF) || |
| 338 | !strcmp(this_char, MNTOPT_UQUOTANOENF)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 339 | mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE); |
| 340 | mp->m_qflags &= ~XFS_UQUOTA_ENFD; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 341 | } else if (!strcmp(this_char, MNTOPT_PQUOTA) || |
| 342 | !strcmp(this_char, MNTOPT_PRJQUOTA)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 343 | mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE | |
| 344 | XFS_OQUOTA_ENFD); |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 345 | } else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 346 | mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE); |
| 347 | mp->m_qflags &= ~XFS_OQUOTA_ENFD; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 348 | } else if (!strcmp(this_char, MNTOPT_GQUOTA) || |
| 349 | !strcmp(this_char, MNTOPT_GRPQUOTA)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 350 | mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE | |
| 351 | XFS_OQUOTA_ENFD); |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 352 | } else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 353 | mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE); |
| 354 | mp->m_qflags &= ~XFS_OQUOTA_ENFD; |
Dave Chinner | 71e330b | 2010-05-21 14:37:18 +1000 | [diff] [blame] | 355 | } else if (!strcmp(this_char, MNTOPT_DELAYLOG)) { |
| 356 | mp->m_flags |= XFS_MOUNT_DELAYLOG; |
Dave Chinner | 71e330b | 2010-05-21 14:37:18 +1000 | [diff] [blame] | 357 | } else if (!strcmp(this_char, MNTOPT_NODELAYLOG)) { |
| 358 | mp->m_flags &= ~XFS_MOUNT_DELAYLOG; |
Christoph Hellwig | 242d621 | 2011-08-24 05:57:51 +0000 | [diff] [blame] | 359 | xfs_warn(mp, |
| 360 | "nodelaylog is deprecated and will be removed in Linux 3.3"); |
Christoph Hellwig | e84661a | 2011-05-20 13:45:32 +0000 | [diff] [blame] | 361 | } else if (!strcmp(this_char, MNTOPT_DISCARD)) { |
| 362 | mp->m_flags |= XFS_MOUNT_DISCARD; |
| 363 | } else if (!strcmp(this_char, MNTOPT_NODISCARD)) { |
| 364 | mp->m_flags &= ~XFS_MOUNT_DISCARD; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 365 | } else if (!strcmp(this_char, "ihashsize")) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 366 | xfs_warn(mp, |
| 367 | "ihashsize no longer used, option is deprecated."); |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 368 | } else if (!strcmp(this_char, "osyncisdsync")) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 369 | xfs_warn(mp, |
| 370 | "osyncisdsync has no effect, option is deprecated."); |
Christoph Hellwig | a64afb0 | 2010-07-20 17:50:52 +1000 | [diff] [blame] | 371 | } else if (!strcmp(this_char, "osyncisosync")) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 372 | xfs_warn(mp, |
| 373 | "osyncisosync has no effect, option is deprecated."); |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 374 | } else if (!strcmp(this_char, "irixsgid")) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 375 | xfs_warn(mp, |
| 376 | "irixsgid is now a sysctl(2) variable, option is deprecated."); |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 377 | } else { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 378 | xfs_warn(mp, "unknown mount option [%s].", this_char); |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 379 | return EINVAL; |
| 380 | } |
| 381 | } |
| 382 | |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 383 | /* |
| 384 | * no recovery flag requires a read-only mount |
| 385 | */ |
| 386 | if ((mp->m_flags & XFS_MOUNT_NORECOVERY) && |
| 387 | !(mp->m_flags & XFS_MOUNT_RDONLY)) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 388 | xfs_warn(mp, "no-recovery mounts must be read-only."); |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 389 | return EINVAL; |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 390 | } |
| 391 | |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 392 | if ((mp->m_flags & XFS_MOUNT_NOALIGN) && (dsunit || dswidth)) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 393 | xfs_warn(mp, |
| 394 | "sunit and swidth options incompatible with the noalign option"); |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 395 | return EINVAL; |
| 396 | } |
| 397 | |
Christoph Hellwig | e84661a | 2011-05-20 13:45:32 +0000 | [diff] [blame] | 398 | if ((mp->m_flags & XFS_MOUNT_DISCARD) && |
| 399 | !(mp->m_flags & XFS_MOUNT_DELAYLOG)) { |
| 400 | xfs_warn(mp, |
| 401 | "the discard option is incompatible with the nodelaylog option"); |
| 402 | return EINVAL; |
| 403 | } |
| 404 | |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 405 | #ifndef CONFIG_XFS_QUOTA |
| 406 | if (XFS_IS_QUOTA_RUNNING(mp)) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 407 | xfs_warn(mp, "quota support not available in this kernel."); |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 408 | return EINVAL; |
| 409 | } |
| 410 | #endif |
| 411 | |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 412 | if ((mp->m_qflags & (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE)) && |
| 413 | (mp->m_qflags & (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE))) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 414 | xfs_warn(mp, "cannot mount with both project and group quota"); |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 415 | return EINVAL; |
| 416 | } |
| 417 | |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 418 | if ((dsunit && !dswidth) || (!dsunit && dswidth)) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 419 | xfs_warn(mp, "sunit and swidth must be specified together"); |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 420 | return EINVAL; |
| 421 | } |
| 422 | |
| 423 | if (dsunit && (dswidth % dsunit != 0)) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 424 | xfs_warn(mp, |
| 425 | "stripe width (%d) must be a multiple of the stripe unit (%d)", |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 426 | dswidth, dsunit); |
| 427 | return EINVAL; |
| 428 | } |
| 429 | |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 430 | done: |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 431 | if (!(mp->m_flags & XFS_MOUNT_NOALIGN)) { |
| 432 | /* |
| 433 | * At this point the superblock has not been read |
| 434 | * in, therefore we do not know the block size. |
| 435 | * Before the mount call ends we will convert |
| 436 | * these to FSBs. |
| 437 | */ |
| 438 | if (dsunit) { |
| 439 | mp->m_dalign = dsunit; |
| 440 | mp->m_flags |= XFS_MOUNT_RETERR; |
| 441 | } |
| 442 | |
| 443 | if (dswidth) |
| 444 | mp->m_swidth = dswidth; |
| 445 | } |
| 446 | |
| 447 | if (mp->m_logbufs != -1 && |
| 448 | mp->m_logbufs != 0 && |
| 449 | (mp->m_logbufs < XLOG_MIN_ICLOGS || |
| 450 | mp->m_logbufs > XLOG_MAX_ICLOGS)) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 451 | xfs_warn(mp, "invalid logbufs value: %d [not %d-%d]", |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 452 | mp->m_logbufs, XLOG_MIN_ICLOGS, XLOG_MAX_ICLOGS); |
| 453 | return XFS_ERROR(EINVAL); |
| 454 | } |
| 455 | if (mp->m_logbsize != -1 && |
| 456 | mp->m_logbsize != 0 && |
| 457 | (mp->m_logbsize < XLOG_MIN_RECORD_BSIZE || |
| 458 | mp->m_logbsize > XLOG_MAX_RECORD_BSIZE || |
| 459 | !is_power_of_2(mp->m_logbsize))) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 460 | xfs_warn(mp, |
| 461 | "invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]", |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 462 | mp->m_logbsize); |
| 463 | return XFS_ERROR(EINVAL); |
| 464 | } |
| 465 | |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 466 | if (iosizelog) { |
| 467 | if (iosizelog > XFS_MAX_IO_LOG || |
| 468 | iosizelog < XFS_MIN_IO_LOG) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 469 | xfs_warn(mp, "invalid log iosize: %d [not %d-%d]", |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 470 | iosizelog, XFS_MIN_IO_LOG, |
| 471 | XFS_MAX_IO_LOG); |
| 472 | return XFS_ERROR(EINVAL); |
| 473 | } |
| 474 | |
| 475 | mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE; |
| 476 | mp->m_readio_log = iosizelog; |
| 477 | mp->m_writeio_log = iosizelog; |
| 478 | } |
| 479 | |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 480 | return 0; |
| 481 | } |
| 482 | |
| 483 | struct proc_xfs_info { |
| 484 | int flag; |
| 485 | char *str; |
| 486 | }; |
| 487 | |
| 488 | STATIC int |
| 489 | xfs_showargs( |
| 490 | struct xfs_mount *mp, |
| 491 | struct seq_file *m) |
| 492 | { |
| 493 | static struct proc_xfs_info xfs_info_set[] = { |
| 494 | /* the few simple ones we can get from the mount struct */ |
Josef Jeff Sipek | 1bd960e | 2008-02-29 13:58:40 +1100 | [diff] [blame] | 495 | { XFS_MOUNT_IKEEP, "," MNTOPT_IKEEP }, |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 496 | { XFS_MOUNT_WSYNC, "," MNTOPT_WSYNC }, |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 497 | { XFS_MOUNT_NOALIGN, "," MNTOPT_NOALIGN }, |
| 498 | { XFS_MOUNT_SWALLOC, "," MNTOPT_SWALLOC }, |
| 499 | { XFS_MOUNT_NOUUID, "," MNTOPT_NOUUID }, |
| 500 | { XFS_MOUNT_NORECOVERY, "," MNTOPT_NORECOVERY }, |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 501 | { XFS_MOUNT_ATTR2, "," MNTOPT_ATTR2 }, |
| 502 | { XFS_MOUNT_FILESTREAMS, "," MNTOPT_FILESTREAM }, |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 503 | { XFS_MOUNT_GRPID, "," MNTOPT_GRPID }, |
Dave Chinner | 71e330b | 2010-05-21 14:37:18 +1000 | [diff] [blame] | 504 | { XFS_MOUNT_DELAYLOG, "," MNTOPT_DELAYLOG }, |
Christoph Hellwig | e84661a | 2011-05-20 13:45:32 +0000 | [diff] [blame] | 505 | { XFS_MOUNT_DISCARD, "," MNTOPT_DISCARD }, |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 506 | { 0, NULL } |
| 507 | }; |
| 508 | static struct proc_xfs_info xfs_info_unset[] = { |
| 509 | /* the few simple ones we can get from the mount struct */ |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 510 | { XFS_MOUNT_COMPAT_IOSIZE, "," MNTOPT_LARGEIO }, |
| 511 | { XFS_MOUNT_BARRIER, "," MNTOPT_NOBARRIER }, |
| 512 | { XFS_MOUNT_SMALL_INUMS, "," MNTOPT_64BITINODE }, |
| 513 | { 0, NULL } |
| 514 | }; |
| 515 | struct proc_xfs_info *xfs_infop; |
| 516 | |
| 517 | for (xfs_infop = xfs_info_set; xfs_infop->flag; xfs_infop++) { |
| 518 | if (mp->m_flags & xfs_infop->flag) |
| 519 | seq_puts(m, xfs_infop->str); |
| 520 | } |
| 521 | for (xfs_infop = xfs_info_unset; xfs_infop->flag; xfs_infop++) { |
| 522 | if (!(mp->m_flags & xfs_infop->flag)) |
| 523 | seq_puts(m, xfs_infop->str); |
| 524 | } |
| 525 | |
| 526 | if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) |
| 527 | seq_printf(m, "," MNTOPT_ALLOCSIZE "=%dk", |
| 528 | (int)(1 << mp->m_writeio_log) >> 10); |
| 529 | |
| 530 | if (mp->m_logbufs > 0) |
| 531 | seq_printf(m, "," MNTOPT_LOGBUFS "=%d", mp->m_logbufs); |
| 532 | if (mp->m_logbsize > 0) |
| 533 | seq_printf(m, "," MNTOPT_LOGBSIZE "=%dk", mp->m_logbsize >> 10); |
| 534 | |
| 535 | if (mp->m_logname) |
| 536 | seq_printf(m, "," MNTOPT_LOGDEV "=%s", mp->m_logname); |
| 537 | if (mp->m_rtname) |
| 538 | seq_printf(m, "," MNTOPT_RTDEV "=%s", mp->m_rtname); |
| 539 | |
| 540 | if (mp->m_dalign > 0) |
| 541 | seq_printf(m, "," MNTOPT_SUNIT "=%d", |
| 542 | (int)XFS_FSB_TO_BB(mp, mp->m_dalign)); |
| 543 | if (mp->m_swidth > 0) |
| 544 | seq_printf(m, "," MNTOPT_SWIDTH "=%d", |
| 545 | (int)XFS_FSB_TO_BB(mp, mp->m_swidth)); |
| 546 | |
| 547 | if (mp->m_qflags & (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD)) |
| 548 | seq_puts(m, "," MNTOPT_USRQUOTA); |
| 549 | else if (mp->m_qflags & XFS_UQUOTA_ACCT) |
| 550 | seq_puts(m, "," MNTOPT_UQUOTANOENF); |
| 551 | |
Alex Elder | 988abe4 | 2009-09-02 17:02:24 -0500 | [diff] [blame] | 552 | /* Either project or group quotas can be active, not both */ |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 553 | |
Alex Elder | 988abe4 | 2009-09-02 17:02:24 -0500 | [diff] [blame] | 554 | if (mp->m_qflags & XFS_PQUOTA_ACCT) { |
| 555 | if (mp->m_qflags & XFS_OQUOTA_ENFD) |
| 556 | seq_puts(m, "," MNTOPT_PRJQUOTA); |
| 557 | else |
| 558 | seq_puts(m, "," MNTOPT_PQUOTANOENF); |
| 559 | } else if (mp->m_qflags & XFS_GQUOTA_ACCT) { |
| 560 | if (mp->m_qflags & XFS_OQUOTA_ENFD) |
| 561 | seq_puts(m, "," MNTOPT_GRPQUOTA); |
| 562 | else |
| 563 | seq_puts(m, "," MNTOPT_GQUOTANOENF); |
| 564 | } |
David Chinner | a67d7c5 | 2007-11-23 16:29:32 +1100 | [diff] [blame] | 565 | |
| 566 | if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT)) |
| 567 | seq_puts(m, "," MNTOPT_NOQUOTA); |
| 568 | |
| 569 | return 0; |
| 570 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | __uint64_t |
| 572 | xfs_max_file_offset( |
| 573 | unsigned int blockshift) |
| 574 | { |
| 575 | unsigned int pagefactor = 1; |
| 576 | unsigned int bitshift = BITS_PER_LONG - 1; |
| 577 | |
| 578 | /* Figure out maximum filesize, on Linux this can depend on |
| 579 | * the filesystem blocksize (on 32 bit platforms). |
Christoph Hellwig | ebdec24 | 2010-10-06 10:47:23 +0200 | [diff] [blame] | 580 | * __block_write_begin does this in an [unsigned] long... |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | * page->index << (PAGE_CACHE_SHIFT - bbits) |
| 582 | * So, for page sized blocks (4K on 32 bit platforms), |
| 583 | * this wraps at around 8Tb (hence MAX_LFS_FILESIZE which is |
| 584 | * (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1) |
| 585 | * but for smaller blocksizes it is less (bbits = log2 bsize). |
| 586 | * Note1: get_block_t takes a long (implicit cast from above) |
| 587 | * Note2: The Large Block Device (LBD and HAVE_SECTOR_T) patch |
| 588 | * can optionally convert the [unsigned] long from above into |
| 589 | * an [unsigned] long long. |
| 590 | */ |
| 591 | |
| 592 | #if BITS_PER_LONG == 32 |
Bartlomiej Zolnierkiewicz | 90c699a | 2009-06-19 08:08:50 +0200 | [diff] [blame] | 593 | # if defined(CONFIG_LBDAF) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | ASSERT(sizeof(sector_t) == 8); |
| 595 | pagefactor = PAGE_CACHE_SIZE; |
| 596 | bitshift = BITS_PER_LONG; |
| 597 | # else |
| 598 | pagefactor = PAGE_CACHE_SIZE >> (PAGE_CACHE_SHIFT - blockshift); |
| 599 | # endif |
| 600 | #endif |
| 601 | |
| 602 | return (((__uint64_t)pagefactor) << bitshift) - 1; |
| 603 | } |
| 604 | |
Hannes Eder | 3180e66 | 2009-03-04 19:34:10 +0100 | [diff] [blame] | 605 | STATIC int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | xfs_blkdev_get( |
| 607 | xfs_mount_t *mp, |
| 608 | const char *name, |
| 609 | struct block_device **bdevp) |
| 610 | { |
| 611 | int error = 0; |
| 612 | |
Tejun Heo | d4d7762 | 2010-11-13 11:55:18 +0100 | [diff] [blame] | 613 | *bdevp = blkdev_get_by_path(name, FMODE_READ|FMODE_WRITE|FMODE_EXCL, |
| 614 | mp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 615 | if (IS_ERR(*bdevp)) { |
| 616 | error = PTR_ERR(*bdevp); |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 617 | xfs_warn(mp, "Invalid device [%s], error=%d\n", name, error); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | } |
| 619 | |
| 620 | return -error; |
| 621 | } |
| 622 | |
Hannes Eder | 3180e66 | 2009-03-04 19:34:10 +0100 | [diff] [blame] | 623 | STATIC void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | xfs_blkdev_put( |
| 625 | struct block_device *bdev) |
| 626 | { |
| 627 | if (bdev) |
Tejun Heo | e525fd8 | 2010-11-13 11:55:17 +0100 | [diff] [blame] | 628 | blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | } |
| 630 | |
Christoph Hellwig | f538d4d | 2005-11-02 10:26:59 +1100 | [diff] [blame] | 631 | void |
| 632 | xfs_blkdev_issue_flush( |
| 633 | xfs_buftarg_t *buftarg) |
| 634 | { |
Christoph Hellwig | dd3932e | 2010-09-16 20:51:46 +0200 | [diff] [blame] | 635 | blkdev_issue_flush(buftarg->bt_bdev, GFP_KERNEL, NULL); |
Christoph Hellwig | f538d4d | 2005-11-02 10:26:59 +1100 | [diff] [blame] | 636 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 638 | STATIC void |
| 639 | xfs_close_devices( |
| 640 | struct xfs_mount *mp) |
| 641 | { |
| 642 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { |
Lachlan McIlroy | c032bfc | 2008-07-18 17:13:12 +1000 | [diff] [blame] | 643 | struct block_device *logdev = mp->m_logdev_targp->bt_bdev; |
Christoph Hellwig | b796313 | 2009-03-03 14:48:37 -0500 | [diff] [blame] | 644 | xfs_free_buftarg(mp, mp->m_logdev_targp); |
Lachlan McIlroy | c032bfc | 2008-07-18 17:13:12 +1000 | [diff] [blame] | 645 | xfs_blkdev_put(logdev); |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 646 | } |
| 647 | if (mp->m_rtdev_targp) { |
Lachlan McIlroy | c032bfc | 2008-07-18 17:13:12 +1000 | [diff] [blame] | 648 | struct block_device *rtdev = mp->m_rtdev_targp->bt_bdev; |
Christoph Hellwig | b796313 | 2009-03-03 14:48:37 -0500 | [diff] [blame] | 649 | xfs_free_buftarg(mp, mp->m_rtdev_targp); |
Lachlan McIlroy | c032bfc | 2008-07-18 17:13:12 +1000 | [diff] [blame] | 650 | xfs_blkdev_put(rtdev); |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 651 | } |
Christoph Hellwig | b796313 | 2009-03-03 14:48:37 -0500 | [diff] [blame] | 652 | xfs_free_buftarg(mp, mp->m_ddev_targp); |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 653 | } |
| 654 | |
| 655 | /* |
| 656 | * The file system configurations are: |
| 657 | * (1) device (partition) with data and internal log |
| 658 | * (2) logical volume with data and log subvolumes. |
| 659 | * (3) logical volume with data, log, and realtime subvolumes. |
| 660 | * |
| 661 | * We only have to handle opening the log and realtime volumes here if |
| 662 | * they are present. The data subvolume has already been opened by |
| 663 | * get_sb_bdev() and is stored in sb->s_bdev. |
| 664 | */ |
| 665 | STATIC int |
| 666 | xfs_open_devices( |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 667 | struct xfs_mount *mp) |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 668 | { |
| 669 | struct block_device *ddev = mp->m_super->s_bdev; |
| 670 | struct block_device *logdev = NULL, *rtdev = NULL; |
| 671 | int error; |
| 672 | |
| 673 | /* |
| 674 | * Open real time and log devices - order is important. |
| 675 | */ |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 676 | if (mp->m_logname) { |
| 677 | error = xfs_blkdev_get(mp, mp->m_logname, &logdev); |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 678 | if (error) |
| 679 | goto out; |
| 680 | } |
| 681 | |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 682 | if (mp->m_rtname) { |
| 683 | error = xfs_blkdev_get(mp, mp->m_rtname, &rtdev); |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 684 | if (error) |
| 685 | goto out_close_logdev; |
| 686 | |
| 687 | if (rtdev == ddev || rtdev == logdev) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 688 | xfs_warn(mp, |
| 689 | "Cannot mount filesystem with identical rtdev and ddev/logdev."); |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 690 | error = EINVAL; |
| 691 | goto out_close_rtdev; |
| 692 | } |
| 693 | } |
| 694 | |
| 695 | /* |
| 696 | * Setup xfs_mount buffer target pointers |
| 697 | */ |
| 698 | error = ENOMEM; |
Dave Chinner | ebad861 | 2010-09-22 10:47:20 +1000 | [diff] [blame] | 699 | mp->m_ddev_targp = xfs_alloc_buftarg(mp, ddev, 0, mp->m_fsname); |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 700 | if (!mp->m_ddev_targp) |
| 701 | goto out_close_rtdev; |
| 702 | |
| 703 | if (rtdev) { |
Dave Chinner | ebad861 | 2010-09-22 10:47:20 +1000 | [diff] [blame] | 704 | mp->m_rtdev_targp = xfs_alloc_buftarg(mp, rtdev, 1, |
| 705 | mp->m_fsname); |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 706 | if (!mp->m_rtdev_targp) |
| 707 | goto out_free_ddev_targ; |
| 708 | } |
| 709 | |
| 710 | if (logdev && logdev != ddev) { |
Dave Chinner | ebad861 | 2010-09-22 10:47:20 +1000 | [diff] [blame] | 711 | mp->m_logdev_targp = xfs_alloc_buftarg(mp, logdev, 1, |
| 712 | mp->m_fsname); |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 713 | if (!mp->m_logdev_targp) |
| 714 | goto out_free_rtdev_targ; |
| 715 | } else { |
| 716 | mp->m_logdev_targp = mp->m_ddev_targp; |
| 717 | } |
| 718 | |
| 719 | return 0; |
| 720 | |
| 721 | out_free_rtdev_targ: |
| 722 | if (mp->m_rtdev_targp) |
Christoph Hellwig | b796313 | 2009-03-03 14:48:37 -0500 | [diff] [blame] | 723 | xfs_free_buftarg(mp, mp->m_rtdev_targp); |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 724 | out_free_ddev_targ: |
Christoph Hellwig | b796313 | 2009-03-03 14:48:37 -0500 | [diff] [blame] | 725 | xfs_free_buftarg(mp, mp->m_ddev_targp); |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 726 | out_close_rtdev: |
| 727 | if (rtdev) |
| 728 | xfs_blkdev_put(rtdev); |
| 729 | out_close_logdev: |
| 730 | if (logdev && logdev != ddev) |
| 731 | xfs_blkdev_put(logdev); |
| 732 | out: |
| 733 | return error; |
| 734 | } |
| 735 | |
Christoph Hellwig | e34b562 | 2008-05-20 15:10:36 +1000 | [diff] [blame] | 736 | /* |
| 737 | * Setup xfs_mount buffer target pointers based on superblock |
| 738 | */ |
| 739 | STATIC int |
| 740 | xfs_setup_devices( |
| 741 | struct xfs_mount *mp) |
| 742 | { |
| 743 | int error; |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 744 | |
Christoph Hellwig | e34b562 | 2008-05-20 15:10:36 +1000 | [diff] [blame] | 745 | error = xfs_setsize_buftarg(mp->m_ddev_targp, mp->m_sb.sb_blocksize, |
| 746 | mp->m_sb.sb_sectsize); |
| 747 | if (error) |
| 748 | return error; |
| 749 | |
| 750 | if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp) { |
| 751 | unsigned int log_sector_size = BBSIZE; |
| 752 | |
| 753 | if (xfs_sb_version_hassector(&mp->m_sb)) |
| 754 | log_sector_size = mp->m_sb.sb_logsectsize; |
| 755 | error = xfs_setsize_buftarg(mp->m_logdev_targp, |
| 756 | mp->m_sb.sb_blocksize, |
| 757 | log_sector_size); |
| 758 | if (error) |
| 759 | return error; |
| 760 | } |
| 761 | if (mp->m_rtdev_targp) { |
| 762 | error = xfs_setsize_buftarg(mp->m_rtdev_targp, |
| 763 | mp->m_sb.sb_blocksize, |
| 764 | mp->m_sb.sb_sectsize); |
| 765 | if (error) |
| 766 | return error; |
| 767 | } |
| 768 | |
| 769 | return 0; |
| 770 | } |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 771 | |
David Chinner | bf90424 | 2008-10-30 17:36:14 +1100 | [diff] [blame] | 772 | /* Catch misguided souls that try to use this interface on XFS */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 773 | STATIC struct inode * |
Nathan Scott | a50cd26 | 2006-03-14 14:06:18 +1100 | [diff] [blame] | 774 | xfs_fs_alloc_inode( |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 775 | struct super_block *sb) |
| 776 | { |
David Chinner | bf90424 | 2008-10-30 17:36:14 +1100 | [diff] [blame] | 777 | BUG(); |
Lachlan McIlroy | 493dca6 | 2008-10-30 17:36:52 +1100 | [diff] [blame] | 778 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 779 | } |
| 780 | |
David Chinner | bf90424 | 2008-10-30 17:36:14 +1100 | [diff] [blame] | 781 | /* |
David Chinner | 99fa8cb | 2008-10-30 17:36:40 +1100 | [diff] [blame] | 782 | * Now that the generic code is guaranteed not to be accessing |
| 783 | * the linux inode, we can reclaim the inode. |
David Chinner | bf90424 | 2008-10-30 17:36:14 +1100 | [diff] [blame] | 784 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | STATIC void |
Nathan Scott | a50cd26 | 2006-03-14 14:06:18 +1100 | [diff] [blame] | 786 | xfs_fs_destroy_inode( |
Christoph Hellwig | 848ce8f | 2009-09-29 13:48:56 +0000 | [diff] [blame] | 787 | struct inode *inode) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 788 | { |
Christoph Hellwig | 848ce8f | 2009-09-29 13:48:56 +0000 | [diff] [blame] | 789 | struct xfs_inode *ip = XFS_I(inode); |
| 790 | |
Christoph Hellwig | cca28fb | 2010-06-24 11:57:09 +1000 | [diff] [blame] | 791 | trace_xfs_destroy_inode(ip); |
David Chinner | 99fa8cb | 2008-10-30 17:36:40 +1100 | [diff] [blame] | 792 | |
| 793 | XFS_STATS_INC(vn_reclaim); |
Christoph Hellwig | 848ce8f | 2009-09-29 13:48:56 +0000 | [diff] [blame] | 794 | |
| 795 | /* bad inode, get out here ASAP */ |
| 796 | if (is_bad_inode(inode)) |
| 797 | goto out_reclaim; |
| 798 | |
Christoph Hellwig | 848ce8f | 2009-09-29 13:48:56 +0000 | [diff] [blame] | 799 | ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) || ip->i_delayed_blks == 0); |
| 800 | |
| 801 | /* |
| 802 | * We should never get here with one of the reclaim flags already set. |
| 803 | */ |
| 804 | ASSERT_ALWAYS(!xfs_iflags_test(ip, XFS_IRECLAIMABLE)); |
| 805 | ASSERT_ALWAYS(!xfs_iflags_test(ip, XFS_IRECLAIM)); |
| 806 | |
| 807 | /* |
Dave Chinner | 57817c6 | 2010-01-10 23:51:47 +0000 | [diff] [blame] | 808 | * We always use background reclaim here because even if the |
| 809 | * inode is clean, it still may be under IO and hence we have |
| 810 | * to take the flush lock. The background reclaim path handles |
| 811 | * this more efficiently than we can here, so simply let background |
| 812 | * reclaim tear down all inodes. |
Christoph Hellwig | 848ce8f | 2009-09-29 13:48:56 +0000 | [diff] [blame] | 813 | */ |
Christoph Hellwig | 848ce8f | 2009-09-29 13:48:56 +0000 | [diff] [blame] | 814 | out_reclaim: |
Dave Chinner | 57817c6 | 2010-01-10 23:51:47 +0000 | [diff] [blame] | 815 | xfs_inode_set_reclaim_tag(ip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 816 | } |
| 817 | |
David Chinner | 07c8f67 | 2008-10-30 16:11:59 +1100 | [diff] [blame] | 818 | /* |
| 819 | * Slab object creation initialisation for the XFS inode. |
| 820 | * This covers only the idempotent fields in the XFS inode; |
| 821 | * all other fields need to be initialised on allocation |
Uwe Kleine-König | b595076 | 2010-11-01 15:38:34 -0400 | [diff] [blame] | 822 | * from the slab. This avoids the need to repeatedly initialise |
David Chinner | 07c8f67 | 2008-10-30 16:11:59 +1100 | [diff] [blame] | 823 | * fields in the xfs inode that left in the initialise state |
| 824 | * when freeing the inode. |
| 825 | */ |
David Chinner | bf90424 | 2008-10-30 17:36:14 +1100 | [diff] [blame] | 826 | STATIC void |
| 827 | xfs_fs_inode_init_once( |
David Chinner | 07c8f67 | 2008-10-30 16:11:59 +1100 | [diff] [blame] | 828 | void *inode) |
| 829 | { |
| 830 | struct xfs_inode *ip = inode; |
| 831 | |
| 832 | memset(ip, 0, sizeof(struct xfs_inode)); |
David Chinner | bf90424 | 2008-10-30 17:36:14 +1100 | [diff] [blame] | 833 | |
| 834 | /* vfs inode */ |
| 835 | inode_init_once(VFS_I(ip)); |
| 836 | |
| 837 | /* xfs inode */ |
David Chinner | 07c8f67 | 2008-10-30 16:11:59 +1100 | [diff] [blame] | 838 | atomic_set(&ip->i_pincount, 0); |
| 839 | spin_lock_init(&ip->i_flags_lock); |
David Chinner | 07c8f67 | 2008-10-30 16:11:59 +1100 | [diff] [blame] | 840 | init_waitqueue_head(&ip->i_ipin_wait); |
| 841 | /* |
| 842 | * Because we want to use a counting completion, complete |
| 843 | * the flush completion once to allow a single access to |
| 844 | * the flush completion without blocking. |
| 845 | */ |
| 846 | init_completion(&ip->i_flush); |
| 847 | complete(&ip->i_flush); |
| 848 | |
| 849 | mrlock_init(&ip->i_lock, MRLOCK_ALLOW_EQUAL_PRI|MRLOCK_BARRIER, |
| 850 | "xfsino", ip->i_ino); |
David Chinner | 07c8f67 | 2008-10-30 16:11:59 +1100 | [diff] [blame] | 851 | } |
| 852 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 853 | /* |
Christoph Hellwig | f9581b1 | 2009-10-06 20:29:26 +0000 | [diff] [blame] | 854 | * Dirty the XFS inode when mark_inode_dirty_sync() is called so that |
Dave Chinner | dcd79a1 | 2010-09-28 12:27:25 +1000 | [diff] [blame] | 855 | * we catch unlogged VFS level updates to the inode. |
Christoph Hellwig | f9581b1 | 2009-10-06 20:29:26 +0000 | [diff] [blame] | 856 | * |
| 857 | * We need the barrier() to maintain correct ordering between unlogged |
| 858 | * updates and the transaction commit code that clears the i_update_core |
| 859 | * field. This requires all updates to be completed before marking the |
| 860 | * inode dirty. |
| 861 | */ |
| 862 | STATIC void |
| 863 | xfs_fs_dirty_inode( |
Christoph Hellwig | aa38572 | 2011-05-27 06:53:02 -0400 | [diff] [blame] | 864 | struct inode *inode, |
| 865 | int flags) |
Christoph Hellwig | f9581b1 | 2009-10-06 20:29:26 +0000 | [diff] [blame] | 866 | { |
| 867 | barrier(); |
| 868 | XFS_I(inode)->i_update_core = 1; |
| 869 | } |
| 870 | |
Christoph Hellwig | 07fec73 | 2010-02-09 11:43:49 +1100 | [diff] [blame] | 871 | STATIC int |
| 872 | xfs_log_inode( |
| 873 | struct xfs_inode *ip) |
| 874 | { |
| 875 | struct xfs_mount *mp = ip->i_mount; |
| 876 | struct xfs_trans *tp; |
| 877 | int error; |
| 878 | |
Christoph Hellwig | 07fec73 | 2010-02-09 11:43:49 +1100 | [diff] [blame] | 879 | tp = xfs_trans_alloc(mp, XFS_TRANS_FSYNC_TS); |
| 880 | error = xfs_trans_reserve(tp, 0, XFS_FSYNC_TS_LOG_RES(mp), 0, 0, 0); |
Christoph Hellwig | 07fec73 | 2010-02-09 11:43:49 +1100 | [diff] [blame] | 881 | if (error) { |
| 882 | xfs_trans_cancel(tp, 0); |
Christoph Hellwig | 07fec73 | 2010-02-09 11:43:49 +1100 | [diff] [blame] | 883 | return error; |
| 884 | } |
| 885 | |
| 886 | xfs_ilock(ip, XFS_ILOCK_EXCL); |
Christoph Hellwig | ddc3415 | 2011-09-19 15:00:54 +0000 | [diff] [blame^] | 887 | xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); |
Christoph Hellwig | 07fec73 | 2010-02-09 11:43:49 +1100 | [diff] [blame] | 888 | xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); |
Christoph Hellwig | 58d84c4 | 2011-08-27 05:57:55 +0000 | [diff] [blame] | 889 | return xfs_trans_commit(tp, 0); |
Christoph Hellwig | 07fec73 | 2010-02-09 11:43:49 +1100 | [diff] [blame] | 890 | } |
| 891 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 892 | STATIC int |
Nathan Scott | a50cd26 | 2006-03-14 14:06:18 +1100 | [diff] [blame] | 893 | xfs_fs_write_inode( |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | struct inode *inode, |
Christoph Hellwig | a9185b4 | 2010-03-05 09:21:37 +0100 | [diff] [blame] | 895 | struct writeback_control *wbc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | { |
Dave Chinner | 2e65609 | 2008-11-28 14:23:33 +1100 | [diff] [blame] | 897 | struct xfs_inode *ip = XFS_I(inode); |
Christoph Hellwig | d4bb6d0 | 2009-02-04 09:36:19 +0100 | [diff] [blame] | 898 | struct xfs_mount *mp = ip->i_mount; |
Christoph Hellwig | 07fec73 | 2010-02-09 11:43:49 +1100 | [diff] [blame] | 899 | int error = EAGAIN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 900 | |
Christoph Hellwig | cca28fb | 2010-06-24 11:57:09 +1000 | [diff] [blame] | 901 | trace_xfs_write_inode(ip); |
Christoph Hellwig | d4bb6d0 | 2009-02-04 09:36:19 +0100 | [diff] [blame] | 902 | |
| 903 | if (XFS_FORCED_SHUTDOWN(mp)) |
Christoph Hellwig | 58d84c4 | 2011-08-27 05:57:55 +0000 | [diff] [blame] | 904 | return -XFS_ERROR(EIO); |
| 905 | if (!ip->i_update_core) |
| 906 | return 0; |
Christoph Hellwig | d4bb6d0 | 2009-02-04 09:36:19 +0100 | [diff] [blame] | 907 | |
Christoph Hellwig | a9185b4 | 2010-03-05 09:21:37 +0100 | [diff] [blame] | 908 | if (wbc->sync_mode == WB_SYNC_ALL) { |
Christoph Hellwig | 07fec73 | 2010-02-09 11:43:49 +1100 | [diff] [blame] | 909 | /* |
Christoph Hellwig | 7a36c8a | 2010-06-24 11:39:25 +1000 | [diff] [blame] | 910 | * Make sure the inode has made it it into the log. Instead |
| 911 | * of forcing it all the way to stable storage using a |
| 912 | * synchronous transaction we let the log force inside the |
| 913 | * ->sync_fs call do that for thus, which reduces the number |
Christoph Hellwig | 4a06fd2 | 2011-08-23 08:28:13 +0000 | [diff] [blame] | 914 | * of synchronous log forces dramatically. |
Christoph Hellwig | 07fec73 | 2010-02-09 11:43:49 +1100 | [diff] [blame] | 915 | */ |
Christoph Hellwig | 58d84c4 | 2011-08-27 05:57:55 +0000 | [diff] [blame] | 916 | error = xfs_log_inode(ip); |
| 917 | if (error) |
| 918 | goto out; |
| 919 | return 0; |
Christoph Hellwig | d4bb6d0 | 2009-02-04 09:36:19 +0100 | [diff] [blame] | 920 | } else { |
Christoph Hellwig | 07fec73 | 2010-02-09 11:43:49 +1100 | [diff] [blame] | 921 | /* |
| 922 | * We make this non-blocking if the inode is contended, return |
| 923 | * EAGAIN to indicate to the caller that they did not succeed. |
| 924 | * This prevents the flush path from blocking on inodes inside |
Christoph Hellwig | 7a36c8a | 2010-06-24 11:39:25 +1000 | [diff] [blame] | 925 | * another operation right now, they get caught later by |
| 926 | * xfs_sync. |
Christoph Hellwig | 07fec73 | 2010-02-09 11:43:49 +1100 | [diff] [blame] | 927 | */ |
Christoph Hellwig | d4bb6d0 | 2009-02-04 09:36:19 +0100 | [diff] [blame] | 928 | if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED)) |
| 929 | goto out; |
Christoph Hellwig | d4bb6d0 | 2009-02-04 09:36:19 +0100 | [diff] [blame] | 930 | |
Christoph Hellwig | 7a36c8a | 2010-06-24 11:39:25 +1000 | [diff] [blame] | 931 | if (xfs_ipincount(ip) || !xfs_iflock_nowait(ip)) |
| 932 | goto out_unlock; |
Christoph Hellwig | 07fec73 | 2010-02-09 11:43:49 +1100 | [diff] [blame] | 933 | |
Christoph Hellwig | 7a36c8a | 2010-06-24 11:39:25 +1000 | [diff] [blame] | 934 | /* |
| 935 | * Now we have the flush lock and the inode is not pinned, we |
| 936 | * can check if the inode is really clean as we know that |
| 937 | * there are no pending transaction completions, it is not |
| 938 | * waiting on the delayed write queue and there is no IO in |
| 939 | * progress. |
| 940 | */ |
| 941 | if (xfs_inode_clean(ip)) { |
| 942 | xfs_ifunlock(ip); |
| 943 | error = 0; |
| 944 | goto out_unlock; |
| 945 | } |
Dave Chinner | 1bfd8d0 | 2011-03-26 09:13:55 +1100 | [diff] [blame] | 946 | error = xfs_iflush(ip, SYNC_TRYLOCK); |
Christoph Hellwig | 07fec73 | 2010-02-09 11:43:49 +1100 | [diff] [blame] | 947 | } |
Christoph Hellwig | 07fec73 | 2010-02-09 11:43:49 +1100 | [diff] [blame] | 948 | |
Christoph Hellwig | d4bb6d0 | 2009-02-04 09:36:19 +0100 | [diff] [blame] | 949 | out_unlock: |
| 950 | xfs_iunlock(ip, XFS_ILOCK_SHARED); |
| 951 | out: |
Lachlan McIlroy | e893bff | 2007-10-12 11:13:35 +1000 | [diff] [blame] | 952 | /* |
| 953 | * if we failed to write out the inode then mark |
| 954 | * it dirty again so we'll try again later. |
| 955 | */ |
| 956 | if (error) |
Dave Chinner | 2e65609 | 2008-11-28 14:23:33 +1100 | [diff] [blame] | 957 | xfs_mark_inode_dirty_sync(ip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 958 | return -error; |
| 959 | } |
| 960 | |
| 961 | STATIC void |
Al Viro | b57922d | 2010-06-07 14:34:48 -0400 | [diff] [blame] | 962 | xfs_fs_evict_inode( |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 963 | struct inode *inode) |
| 964 | { |
Christoph Hellwig | 1543d79 | 2007-08-29 11:46:47 +1000 | [diff] [blame] | 965 | xfs_inode_t *ip = XFS_I(inode); |
Christoph Hellwig | 56d433e | 2005-09-05 08:23:54 +1000 | [diff] [blame] | 966 | |
Al Viro | b57922d | 2010-06-07 14:34:48 -0400 | [diff] [blame] | 967 | trace_xfs_evict_inode(ip); |
Christoph Hellwig | cca28fb | 2010-06-24 11:57:09 +1000 | [diff] [blame] | 968 | |
Al Viro | b57922d | 2010-06-07 14:34:48 -0400 | [diff] [blame] | 969 | truncate_inode_pages(&inode->i_data, 0); |
| 970 | end_writeback(inode); |
David Chinner | 99fa8cb | 2008-10-30 17:36:40 +1100 | [diff] [blame] | 971 | XFS_STATS_INC(vn_rele); |
| 972 | XFS_STATS_INC(vn_remove); |
| 973 | XFS_STATS_DEC(vn_active); |
Christoph Hellwig | 56d433e | 2005-09-05 08:23:54 +1000 | [diff] [blame] | 974 | |
Christoph Hellwig | 033da48 | 2009-10-19 04:05:26 +0000 | [diff] [blame] | 975 | /* |
| 976 | * The iolock is used by the file system to coordinate reads, |
| 977 | * writes, and block truncates. Up to this point the lock |
| 978 | * protected concurrent accesses by users of the inode. But |
| 979 | * from here forward we're doing some final processing of the |
| 980 | * inode because we're done with it, and although we reuse the |
| 981 | * iolock for protection it is really a distinct lock class |
| 982 | * (in the lockdep sense) from before. To keep lockdep happy |
| 983 | * (and basically indicate what we are doing), we explicitly |
| 984 | * re-init the iolock here. |
| 985 | */ |
| 986 | ASSERT(!rwsem_is_locked(&ip->i_iolock.mr_lock)); |
| 987 | mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", ip->i_ino); |
Dave Chinner | dcfcf20 | 2010-12-23 11:57:13 +1100 | [diff] [blame] | 988 | lockdep_set_class_and_name(&ip->i_iolock.mr_lock, |
| 989 | &xfs_iolock_reclaimable, "xfs_iolock_reclaimable"); |
Christoph Hellwig | 033da48 | 2009-10-19 04:05:26 +0000 | [diff] [blame] | 990 | |
David Chinner | 99fa8cb | 2008-10-30 17:36:40 +1100 | [diff] [blame] | 991 | xfs_inactive(ip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 992 | } |
| 993 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 994 | STATIC void |
Christoph Hellwig | a738159 | 2008-08-13 16:04:05 +1000 | [diff] [blame] | 995 | xfs_free_fsname( |
| 996 | struct xfs_mount *mp) |
| 997 | { |
| 998 | kfree(mp->m_fsname); |
| 999 | kfree(mp->m_rtname); |
| 1000 | kfree(mp->m_logname); |
| 1001 | } |
| 1002 | |
| 1003 | STATIC void |
Nathan Scott | a50cd26 | 2006-03-14 14:06:18 +1100 | [diff] [blame] | 1004 | xfs_fs_put_super( |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1005 | struct super_block *sb) |
| 1006 | { |
Christoph Hellwig | 745f691 | 2007-08-30 17:20:39 +1000 | [diff] [blame] | 1007 | struct xfs_mount *mp = XFS_M(sb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | |
David Chinner | a167b17 | 2008-10-30 17:06:18 +1100 | [diff] [blame] | 1009 | xfs_syncd_stop(mp); |
Christoph Hellwig | 075fe10 | 2009-06-08 15:35:48 +0200 | [diff] [blame] | 1010 | |
Christoph Hellwig | e48ad31 | 2008-05-20 11:30:52 +1000 | [diff] [blame] | 1011 | /* |
| 1012 | * Blow away any referenced inode in the filestreams cache. |
| 1013 | * This can and will cause log traffic as inodes go inactive |
| 1014 | * here. |
| 1015 | */ |
| 1016 | xfs_filestream_unmount(mp); |
| 1017 | |
| 1018 | XFS_bflush(mp->m_ddev_targp); |
Christoph Hellwig | e48ad31 | 2008-05-20 11:30:52 +1000 | [diff] [blame] | 1019 | |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 1020 | xfs_unmountfs(mp); |
Christoph Hellwig | 6203300 | 2008-08-13 16:50:21 +1000 | [diff] [blame] | 1021 | xfs_freesb(mp); |
Christoph Hellwig | c962fb7 | 2008-05-20 15:10:52 +1000 | [diff] [blame] | 1022 | xfs_icsb_destroy_counters(mp); |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 1023 | xfs_close_devices(mp); |
Christoph Hellwig | a738159 | 2008-08-13 16:04:05 +1000 | [diff] [blame] | 1024 | xfs_free_fsname(mp); |
Christoph Hellwig | c962fb7 | 2008-05-20 15:10:52 +1000 | [diff] [blame] | 1025 | kfree(mp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1026 | } |
| 1027 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | STATIC int |
Christoph Hellwig | 69961a2 | 2009-10-06 20:29:28 +0000 | [diff] [blame] | 1029 | xfs_fs_sync_fs( |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1030 | struct super_block *sb, |
| 1031 | int wait) |
| 1032 | { |
Christoph Hellwig | 745f691 | 2007-08-30 17:20:39 +1000 | [diff] [blame] | 1033 | struct xfs_mount *mp = XFS_M(sb); |
Nathan Scott | b83bd13 | 2006-06-09 16:48:30 +1000 | [diff] [blame] | 1034 | int error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | |
Lachlan McIlroy | e893bff | 2007-10-12 11:13:35 +1000 | [diff] [blame] | 1036 | /* |
Christoph Hellwig | 69961a2 | 2009-10-06 20:29:28 +0000 | [diff] [blame] | 1037 | * Not much we can do for the first async pass. Writing out the |
| 1038 | * superblock would be counter-productive as we are going to redirty |
| 1039 | * when writing out other data and metadata (and writing out a single |
| 1040 | * block is quite fast anyway). |
| 1041 | * |
| 1042 | * Try to asynchronously kick off quota syncing at least. |
Lachlan McIlroy | e893bff | 2007-10-12 11:13:35 +1000 | [diff] [blame] | 1043 | */ |
Christoph Hellwig | 69961a2 | 2009-10-06 20:29:28 +0000 | [diff] [blame] | 1044 | if (!wait) { |
| 1045 | xfs_qm_sync(mp, SYNC_TRYLOCK); |
| 1046 | return 0; |
| 1047 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1048 | |
Christoph Hellwig | 69961a2 | 2009-10-06 20:29:28 +0000 | [diff] [blame] | 1049 | error = xfs_quiesce_data(mp); |
| 1050 | if (error) |
| 1051 | return -error; |
| 1052 | |
| 1053 | if (laptop_mode) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1054 | /* |
| 1055 | * The disk must be active because we're syncing. |
| 1056 | * We schedule xfssyncd now (now that the disk is |
| 1057 | * active) instead of later (when it might not be). |
| 1058 | */ |
Dave Chinner | c6d09b6 | 2011-04-08 12:45:07 +1000 | [diff] [blame] | 1059 | flush_delayed_work_sync(&mp->m_sync_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1060 | } |
| 1061 | |
Christoph Hellwig | 69961a2 | 2009-10-06 20:29:28 +0000 | [diff] [blame] | 1062 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1063 | } |
| 1064 | |
| 1065 | STATIC int |
Nathan Scott | a50cd26 | 2006-03-14 14:06:18 +1100 | [diff] [blame] | 1066 | xfs_fs_statfs( |
David Howells | 726c334 | 2006-06-23 02:02:58 -0700 | [diff] [blame] | 1067 | struct dentry *dentry, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1068 | struct kstatfs *statp) |
| 1069 | { |
Christoph Hellwig | 4ca488e | 2007-10-11 18:09:40 +1000 | [diff] [blame] | 1070 | struct xfs_mount *mp = XFS_M(dentry->d_sb); |
| 1071 | xfs_sb_t *sbp = &mp->m_sb; |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1072 | struct xfs_inode *ip = XFS_I(dentry->d_inode); |
Christoph Hellwig | 4ca488e | 2007-10-11 18:09:40 +1000 | [diff] [blame] | 1073 | __uint64_t fakeinos, id; |
| 1074 | xfs_extlen_t lsize; |
Stuart Brodsky | 2fe3366 | 2010-08-24 11:46:05 +1000 | [diff] [blame] | 1075 | __int64_t ffree; |
Christoph Hellwig | 4ca488e | 2007-10-11 18:09:40 +1000 | [diff] [blame] | 1076 | |
| 1077 | statp->f_type = XFS_SB_MAGIC; |
| 1078 | statp->f_namelen = MAXNAMELEN - 1; |
| 1079 | |
| 1080 | id = huge_encode_dev(mp->m_ddev_targp->bt_dev); |
| 1081 | statp->f_fsid.val[0] = (u32)id; |
| 1082 | statp->f_fsid.val[1] = (u32)(id >> 32); |
| 1083 | |
Christoph Hellwig | d4d90b5 | 2008-04-22 17:34:37 +1000 | [diff] [blame] | 1084 | xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT); |
Christoph Hellwig | 4ca488e | 2007-10-11 18:09:40 +1000 | [diff] [blame] | 1085 | |
| 1086 | spin_lock(&mp->m_sb_lock); |
| 1087 | statp->f_bsize = sbp->sb_blocksize; |
| 1088 | lsize = sbp->sb_logstart ? sbp->sb_logblocks : 0; |
| 1089 | statp->f_blocks = sbp->sb_dblocks - lsize; |
| 1090 | statp->f_bfree = statp->f_bavail = |
| 1091 | sbp->sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp); |
| 1092 | fakeinos = statp->f_bfree << sbp->sb_inopblog; |
Christoph Hellwig | 4ca488e | 2007-10-11 18:09:40 +1000 | [diff] [blame] | 1093 | statp->f_files = |
| 1094 | MIN(sbp->sb_icount + fakeinos, (__uint64_t)XFS_MAXINUMBER); |
| 1095 | if (mp->m_maxicount) |
Christoph Hellwig | a19d9f8 | 2009-03-29 09:51:08 +0200 | [diff] [blame] | 1096 | statp->f_files = min_t(typeof(statp->f_files), |
| 1097 | statp->f_files, |
| 1098 | mp->m_maxicount); |
Stuart Brodsky | 2fe3366 | 2010-08-24 11:46:05 +1000 | [diff] [blame] | 1099 | |
| 1100 | /* make sure statp->f_ffree does not underflow */ |
| 1101 | ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree); |
| 1102 | statp->f_ffree = max_t(__int64_t, ffree, 0); |
| 1103 | |
Christoph Hellwig | 4ca488e | 2007-10-11 18:09:40 +1000 | [diff] [blame] | 1104 | spin_unlock(&mp->m_sb_lock); |
| 1105 | |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1106 | if ((ip->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) || |
| 1107 | ((mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD))) == |
| 1108 | (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD)) |
| 1109 | xfs_qm_statvfs(ip, statp); |
Christoph Hellwig | 4ca488e | 2007-10-11 18:09:40 +1000 | [diff] [blame] | 1110 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1111 | } |
| 1112 | |
Eric Sandeen | d5db0f9 | 2010-02-05 22:59:53 +0000 | [diff] [blame] | 1113 | STATIC void |
| 1114 | xfs_save_resvblks(struct xfs_mount *mp) |
| 1115 | { |
| 1116 | __uint64_t resblks = 0; |
| 1117 | |
| 1118 | mp->m_resblks_save = mp->m_resblks; |
| 1119 | xfs_reserve_blocks(mp, &resblks, NULL); |
| 1120 | } |
| 1121 | |
| 1122 | STATIC void |
| 1123 | xfs_restore_resvblks(struct xfs_mount *mp) |
| 1124 | { |
| 1125 | __uint64_t resblks; |
| 1126 | |
| 1127 | if (mp->m_resblks_save) { |
| 1128 | resblks = mp->m_resblks_save; |
| 1129 | mp->m_resblks_save = 0; |
| 1130 | } else |
| 1131 | resblks = xfs_default_resblks(mp); |
| 1132 | |
| 1133 | xfs_reserve_blocks(mp, &resblks, NULL); |
| 1134 | } |
| 1135 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1136 | STATIC int |
Nathan Scott | a50cd26 | 2006-03-14 14:06:18 +1100 | [diff] [blame] | 1137 | xfs_fs_remount( |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1138 | struct super_block *sb, |
| 1139 | int *flags, |
| 1140 | char *options) |
| 1141 | { |
Christoph Hellwig | 745f691 | 2007-08-30 17:20:39 +1000 | [diff] [blame] | 1142 | struct xfs_mount *mp = XFS_M(sb); |
Christoph Hellwig | 62a877e | 2008-07-18 17:12:36 +1000 | [diff] [blame] | 1143 | substring_t args[MAX_OPT_ARGS]; |
| 1144 | char *p; |
Christoph Hellwig | 7884bc8 | 2009-01-19 02:04:07 +0100 | [diff] [blame] | 1145 | int error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1146 | |
Christoph Hellwig | 62a877e | 2008-07-18 17:12:36 +1000 | [diff] [blame] | 1147 | while ((p = strsep(&options, ",")) != NULL) { |
| 1148 | int token; |
Christoph Hellwig | bdd907b | 2008-05-20 15:10:44 +1000 | [diff] [blame] | 1149 | |
Christoph Hellwig | 62a877e | 2008-07-18 17:12:36 +1000 | [diff] [blame] | 1150 | if (!*p) |
| 1151 | continue; |
Christoph Hellwig | 48b62a1 | 2008-05-20 11:30:39 +1000 | [diff] [blame] | 1152 | |
Christoph Hellwig | 62a877e | 2008-07-18 17:12:36 +1000 | [diff] [blame] | 1153 | token = match_token(p, tokens, args); |
| 1154 | switch (token) { |
| 1155 | case Opt_barrier: |
Christoph Hellwig | 48b62a1 | 2008-05-20 11:30:39 +1000 | [diff] [blame] | 1156 | mp->m_flags |= XFS_MOUNT_BARRIER; |
Christoph Hellwig | 62a877e | 2008-07-18 17:12:36 +1000 | [diff] [blame] | 1157 | break; |
| 1158 | case Opt_nobarrier: |
Christoph Hellwig | 48b62a1 | 2008-05-20 11:30:39 +1000 | [diff] [blame] | 1159 | mp->m_flags &= ~XFS_MOUNT_BARRIER; |
Christoph Hellwig | 62a877e | 2008-07-18 17:12:36 +1000 | [diff] [blame] | 1160 | break; |
| 1161 | default: |
Christoph Hellwig | 6efdf28 | 2008-09-17 16:49:33 +1000 | [diff] [blame] | 1162 | /* |
| 1163 | * Logically we would return an error here to prevent |
| 1164 | * users from believing they might have changed |
| 1165 | * mount options using remount which can't be changed. |
| 1166 | * |
| 1167 | * But unfortunately mount(8) adds all options from |
| 1168 | * mtab and fstab to the mount arguments in some cases |
| 1169 | * so we can't blindly reject options, but have to |
| 1170 | * check for each specified option if it actually |
| 1171 | * differs from the currently set option and only |
| 1172 | * reject it if that's the case. |
| 1173 | * |
| 1174 | * Until that is implemented we return success for |
| 1175 | * every remount request, and silently ignore all |
| 1176 | * options that we can't actually change. |
| 1177 | */ |
| 1178 | #if 0 |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 1179 | xfs_info(mp, |
| 1180 | "mount option \"%s\" not supported for remount\n", p); |
Christoph Hellwig | 62a877e | 2008-07-18 17:12:36 +1000 | [diff] [blame] | 1181 | return -EINVAL; |
Christoph Hellwig | 6efdf28 | 2008-09-17 16:49:33 +1000 | [diff] [blame] | 1182 | #else |
Christoph Hellwig | 6c5e51d | 2008-10-12 14:30:44 +0200 | [diff] [blame] | 1183 | break; |
Christoph Hellwig | 6efdf28 | 2008-09-17 16:49:33 +1000 | [diff] [blame] | 1184 | #endif |
Christoph Hellwig | 48b62a1 | 2008-05-20 11:30:39 +1000 | [diff] [blame] | 1185 | } |
Christoph Hellwig | 62a877e | 2008-07-18 17:12:36 +1000 | [diff] [blame] | 1186 | } |
| 1187 | |
Christoph Hellwig | 7884bc8 | 2009-01-19 02:04:07 +0100 | [diff] [blame] | 1188 | /* ro -> rw */ |
Christoph Hellwig | 62a877e | 2008-07-18 17:12:36 +1000 | [diff] [blame] | 1189 | if ((mp->m_flags & XFS_MOUNT_RDONLY) && !(*flags & MS_RDONLY)) { |
| 1190 | mp->m_flags &= ~XFS_MOUNT_RDONLY; |
Christoph Hellwig | 7884bc8 | 2009-01-19 02:04:07 +0100 | [diff] [blame] | 1191 | |
| 1192 | /* |
| 1193 | * If this is the first remount to writeable state we |
| 1194 | * might have some superblock changes to update. |
| 1195 | */ |
| 1196 | if (mp->m_update_flags) { |
| 1197 | error = xfs_mount_log_sb(mp, mp->m_update_flags); |
| 1198 | if (error) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 1199 | xfs_warn(mp, "failed to write sb changes"); |
Christoph Hellwig | 7884bc8 | 2009-01-19 02:04:07 +0100 | [diff] [blame] | 1200 | return error; |
| 1201 | } |
| 1202 | mp->m_update_flags = 0; |
| 1203 | } |
Dave Chinner | cbe132a | 2010-01-26 15:08:49 +1100 | [diff] [blame] | 1204 | |
| 1205 | /* |
| 1206 | * Fill out the reserve pool if it is empty. Use the stashed |
| 1207 | * value if it is non-zero, otherwise go with the default. |
| 1208 | */ |
Eric Sandeen | d5db0f9 | 2010-02-05 22:59:53 +0000 | [diff] [blame] | 1209 | xfs_restore_resvblks(mp); |
Christoph Hellwig | 62a877e | 2008-07-18 17:12:36 +1000 | [diff] [blame] | 1210 | } |
| 1211 | |
| 1212 | /* rw -> ro */ |
| 1213 | if (!(mp->m_flags & XFS_MOUNT_RDONLY) && (*flags & MS_RDONLY)) { |
Dave Chinner | cbe132a | 2010-01-26 15:08:49 +1100 | [diff] [blame] | 1214 | /* |
| 1215 | * After we have synced the data but before we sync the |
| 1216 | * metadata, we need to free up the reserve block pool so that |
| 1217 | * the used block count in the superblock on disk is correct at |
| 1218 | * the end of the remount. Stash the current reserve pool size |
| 1219 | * so that if we get remounted rw, we can return it to the same |
| 1220 | * size. |
| 1221 | */ |
Dave Chinner | cbe132a | 2010-01-26 15:08:49 +1100 | [diff] [blame] | 1222 | |
David Chinner | e9f1c6e | 2008-10-30 17:15:50 +1100 | [diff] [blame] | 1223 | xfs_quiesce_data(mp); |
Eric Sandeen | d5db0f9 | 2010-02-05 22:59:53 +0000 | [diff] [blame] | 1224 | xfs_save_resvblks(mp); |
David Chinner | 76bf105 | 2008-10-30 17:16:21 +1100 | [diff] [blame] | 1225 | xfs_quiesce_attr(mp); |
Christoph Hellwig | 48b62a1 | 2008-05-20 11:30:39 +1000 | [diff] [blame] | 1226 | mp->m_flags |= XFS_MOUNT_RDONLY; |
| 1227 | } |
| 1228 | |
Christoph Hellwig | 62a877e | 2008-07-18 17:12:36 +1000 | [diff] [blame] | 1229 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1230 | } |
| 1231 | |
Christoph Hellwig | 9909c4a | 2007-10-11 18:11:14 +1000 | [diff] [blame] | 1232 | /* |
| 1233 | * Second stage of a freeze. The data is already frozen so we only |
David Chinner | 76bf105 | 2008-10-30 17:16:21 +1100 | [diff] [blame] | 1234 | * need to take care of the metadata. Once that's done write a dummy |
Christoph Hellwig | 9909c4a | 2007-10-11 18:11:14 +1000 | [diff] [blame] | 1235 | * record to dirty the log in case of a crash while frozen. |
| 1236 | */ |
Takashi Sato | c4be0c1 | 2009-01-09 16:40:58 -0800 | [diff] [blame] | 1237 | STATIC int |
| 1238 | xfs_fs_freeze( |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1239 | struct super_block *sb) |
| 1240 | { |
Christoph Hellwig | 9909c4a | 2007-10-11 18:11:14 +1000 | [diff] [blame] | 1241 | struct xfs_mount *mp = XFS_M(sb); |
| 1242 | |
Eric Sandeen | d5db0f9 | 2010-02-05 22:59:53 +0000 | [diff] [blame] | 1243 | xfs_save_resvblks(mp); |
David Chinner | 76bf105 | 2008-10-30 17:16:21 +1100 | [diff] [blame] | 1244 | xfs_quiesce_attr(mp); |
Dave Chinner | c58efdb | 2011-01-04 04:49:29 +0000 | [diff] [blame] | 1245 | return -xfs_fs_log_dummy(mp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1246 | } |
| 1247 | |
| 1248 | STATIC int |
Eric Sandeen | d5db0f9 | 2010-02-05 22:59:53 +0000 | [diff] [blame] | 1249 | xfs_fs_unfreeze( |
| 1250 | struct super_block *sb) |
| 1251 | { |
| 1252 | struct xfs_mount *mp = XFS_M(sb); |
| 1253 | |
| 1254 | xfs_restore_resvblks(mp); |
| 1255 | return 0; |
| 1256 | } |
| 1257 | |
| 1258 | STATIC int |
Nathan Scott | a50cd26 | 2006-03-14 14:06:18 +1100 | [diff] [blame] | 1259 | xfs_fs_show_options( |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1260 | struct seq_file *m, |
| 1261 | struct vfsmount *mnt) |
| 1262 | { |
Christoph Hellwig | 745f691 | 2007-08-30 17:20:39 +1000 | [diff] [blame] | 1263 | return -xfs_showargs(XFS_M(mnt->mnt_sb), m); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1264 | } |
| 1265 | |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1266 | /* |
| 1267 | * This function fills in xfs_mount_t fields based on mount args. |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1268 | * Note: the superblock _has_ now been read in. |
| 1269 | */ |
| 1270 | STATIC int |
| 1271 | xfs_finish_flags( |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1272 | struct xfs_mount *mp) |
| 1273 | { |
| 1274 | int ronly = (mp->m_flags & XFS_MOUNT_RDONLY); |
| 1275 | |
Frederik Schwarzer | 025dfda | 2008-10-16 19:02:37 +0200 | [diff] [blame] | 1276 | /* Fail a mount where the logbuf is smaller than the log stripe */ |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1277 | if (xfs_sb_version_haslogv2(&mp->m_sb)) { |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 1278 | if (mp->m_logbsize <= 0 && |
| 1279 | mp->m_sb.sb_logsunit > XLOG_BIG_RECORD_BSIZE) { |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1280 | mp->m_logbsize = mp->m_sb.sb_logsunit; |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 1281 | } else if (mp->m_logbsize > 0 && |
| 1282 | mp->m_logbsize < mp->m_sb.sb_logsunit) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 1283 | xfs_warn(mp, |
| 1284 | "logbuf size must be greater than or equal to log stripe size"); |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1285 | return XFS_ERROR(EINVAL); |
| 1286 | } |
| 1287 | } else { |
| 1288 | /* Fail a mount if the logbuf is larger than 32K */ |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 1289 | if (mp->m_logbsize > XLOG_BIG_RECORD_BSIZE) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 1290 | xfs_warn(mp, |
| 1291 | "logbuf size for version 1 logs must be 16K or 32K"); |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1292 | return XFS_ERROR(EINVAL); |
| 1293 | } |
| 1294 | } |
| 1295 | |
| 1296 | /* |
| 1297 | * mkfs'ed attr2 will turn on attr2 mount unless explicitly |
| 1298 | * told by noattr2 to turn it off |
| 1299 | */ |
| 1300 | if (xfs_sb_version_hasattr2(&mp->m_sb) && |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 1301 | !(mp->m_flags & XFS_MOUNT_NOATTR2)) |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1302 | mp->m_flags |= XFS_MOUNT_ATTR2; |
| 1303 | |
| 1304 | /* |
| 1305 | * prohibit r/w mounts of read-only filesystems |
| 1306 | */ |
| 1307 | if ((mp->m_sb.sb_flags & XFS_SBF_READONLY) && !ronly) { |
Dave Chinner | 4f10700 | 2011-03-07 10:00:35 +1100 | [diff] [blame] | 1308 | xfs_warn(mp, |
| 1309 | "cannot mount a read-only filesystem as read-write"); |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1310 | return XFS_ERROR(EROFS); |
| 1311 | } |
| 1312 | |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1313 | return 0; |
| 1314 | } |
| 1315 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1316 | STATIC int |
Nathan Scott | a50cd26 | 2006-03-14 14:06:18 +1100 | [diff] [blame] | 1317 | xfs_fs_fill_super( |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1318 | struct super_block *sb, |
| 1319 | void *data, |
| 1320 | int silent) |
| 1321 | { |
Christoph Hellwig | f3dcc13 | 2008-03-27 18:00:54 +1100 | [diff] [blame] | 1322 | struct inode *root; |
Christoph Hellwig | 745f691 | 2007-08-30 17:20:39 +1000 | [diff] [blame] | 1323 | struct xfs_mount *mp = NULL; |
Christoph Hellwig | c962fb7 | 2008-05-20 15:10:52 +1000 | [diff] [blame] | 1324 | int flags = 0, error = ENOMEM; |
Christoph Hellwig | bdd907b | 2008-05-20 15:10:44 +1000 | [diff] [blame] | 1325 | |
Christoph Hellwig | c962fb7 | 2008-05-20 15:10:52 +1000 | [diff] [blame] | 1326 | mp = kzalloc(sizeof(struct xfs_mount), GFP_KERNEL); |
| 1327 | if (!mp) |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 1328 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1329 | |
Christoph Hellwig | c962fb7 | 2008-05-20 15:10:52 +1000 | [diff] [blame] | 1330 | spin_lock_init(&mp->m_sb_lock); |
Christoph Hellwig | c962fb7 | 2008-05-20 15:10:52 +1000 | [diff] [blame] | 1331 | mutex_init(&mp->m_growlock); |
| 1332 | atomic_set(&mp->m_active_trans, 0); |
Christoph Hellwig | 7439449 | 2007-08-30 17:21:22 +1000 | [diff] [blame] | 1333 | |
Christoph Hellwig | b267ce9 | 2007-08-30 17:21:30 +1000 | [diff] [blame] | 1334 | mp->m_super = sb; |
| 1335 | sb->s_fs_info = mp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1336 | |
Christoph Hellwig | 288699f | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 1337 | error = xfs_parseargs(mp, (char *)data); |
Christoph Hellwig | 745f691 | 2007-08-30 17:20:39 +1000 | [diff] [blame] | 1338 | if (error) |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 1339 | goto out_free_fsname; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1340 | |
| 1341 | sb_min_blocksize(sb, BBSIZE); |
Lachlan McIlroy | 0ec5851 | 2008-06-23 13:23:01 +1000 | [diff] [blame] | 1342 | sb->s_xattr = xfs_xattr_handlers; |
Nathan Scott | a50cd26 | 2006-03-14 14:06:18 +1100 | [diff] [blame] | 1343 | sb->s_export_op = &xfs_export_operations; |
Christoph Hellwig | fcafb71 | 2009-02-09 08:47:34 +0100 | [diff] [blame] | 1344 | #ifdef CONFIG_XFS_QUOTA |
Nathan Scott | a50cd26 | 2006-03-14 14:06:18 +1100 | [diff] [blame] | 1345 | sb->s_qcop = &xfs_quotactl_operations; |
Christoph Hellwig | fcafb71 | 2009-02-09 08:47:34 +0100 | [diff] [blame] | 1346 | #endif |
Nathan Scott | a50cd26 | 2006-03-14 14:06:18 +1100 | [diff] [blame] | 1347 | sb->s_op = &xfs_super_operations; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1348 | |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 1349 | if (silent) |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1350 | flags |= XFS_MFSI_QUIET; |
| 1351 | |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 1352 | error = xfs_open_devices(mp); |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 1353 | if (error) |
Christoph Hellwig | 288699f | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 1354 | goto out_free_fsname; |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1355 | |
Christoph Hellwig | 61ba35d | 2010-09-30 02:25:54 +0000 | [diff] [blame] | 1356 | error = xfs_icsb_init_counters(mp); |
| 1357 | if (error) |
| 1358 | goto out_close_devices; |
Christoph Hellwig | c962fb7 | 2008-05-20 15:10:52 +1000 | [diff] [blame] | 1359 | |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1360 | error = xfs_readsb(mp, flags); |
| 1361 | if (error) |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 1362 | goto out_destroy_counters; |
| 1363 | |
| 1364 | error = xfs_finish_flags(mp); |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1365 | if (error) |
Christoph Hellwig | effa2ed | 2008-05-20 15:11:05 +1000 | [diff] [blame] | 1366 | goto out_free_sb; |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1367 | |
Christoph Hellwig | e34b562 | 2008-05-20 15:10:36 +1000 | [diff] [blame] | 1368 | error = xfs_setup_devices(mp); |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 1369 | if (error) |
Christoph Hellwig | effa2ed | 2008-05-20 15:11:05 +1000 | [diff] [blame] | 1370 | goto out_free_sb; |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1371 | |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1372 | error = xfs_filestream_mount(mp); |
| 1373 | if (error) |
Christoph Hellwig | effa2ed | 2008-05-20 15:11:05 +1000 | [diff] [blame] | 1374 | goto out_free_sb; |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1375 | |
Dave Chinner | 704b290 | 2011-03-26 09:14:57 +1100 | [diff] [blame] | 1376 | /* |
| 1377 | * we must configure the block size in the superblock before we run the |
| 1378 | * full mount process as the mount process can lookup and cache inodes. |
| 1379 | * For the same reason we must also initialise the syncd and register |
| 1380 | * the inode cache shrinker so that inodes can be reclaimed during |
| 1381 | * operations like a quotacheck that iterate all inodes in the |
| 1382 | * filesystem. |
| 1383 | */ |
Christoph Hellwig | 4ca488e | 2007-10-11 18:09:40 +1000 | [diff] [blame] | 1384 | sb->s_magic = XFS_SB_MAGIC; |
| 1385 | sb->s_blocksize = mp->m_sb.sb_blocksize; |
| 1386 | sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1387 | sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits); |
| 1388 | sb->s_time_gran = 1; |
| 1389 | set_posix_acl_flag(sb); |
| 1390 | |
Dave Chinner | 704b290 | 2011-03-26 09:14:57 +1100 | [diff] [blame] | 1391 | error = xfs_mountfs(mp); |
| 1392 | if (error) |
Christoph Hellwig | 2bcf6e9 | 2011-07-13 13:43:48 +0200 | [diff] [blame] | 1393 | goto out_filestream_unmount; |
| 1394 | |
| 1395 | error = xfs_syncd_init(mp); |
| 1396 | if (error) |
| 1397 | goto out_unmount; |
Dave Chinner | 704b290 | 2011-03-26 09:14:57 +1100 | [diff] [blame] | 1398 | |
David Chinner | 0165164 | 2008-08-13 15:45:15 +1000 | [diff] [blame] | 1399 | root = igrab(VFS_I(mp->m_rootip)); |
Christoph Hellwig | f3dcc13 | 2008-03-27 18:00:54 +1100 | [diff] [blame] | 1400 | if (!root) { |
Christoph Hellwig | cbc89dc | 2008-02-05 12:14:01 +1100 | [diff] [blame] | 1401 | error = ENOENT; |
Christoph Hellwig | 2bcf6e9 | 2011-07-13 13:43:48 +0200 | [diff] [blame] | 1402 | goto out_syncd_stop; |
Christoph Hellwig | cbc89dc | 2008-02-05 12:14:01 +1100 | [diff] [blame] | 1403 | } |
Christoph Hellwig | f3dcc13 | 2008-03-27 18:00:54 +1100 | [diff] [blame] | 1404 | if (is_bad_inode(root)) { |
| 1405 | error = EINVAL; |
Christoph Hellwig | 2bcf6e9 | 2011-07-13 13:43:48 +0200 | [diff] [blame] | 1406 | goto out_syncd_stop; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1407 | } |
Christoph Hellwig | f3dcc13 | 2008-03-27 18:00:54 +1100 | [diff] [blame] | 1408 | sb->s_root = d_alloc_root(root); |
| 1409 | if (!sb->s_root) { |
| 1410 | error = ENOMEM; |
Christoph Hellwig | 2bcf6e9 | 2011-07-13 13:43:48 +0200 | [diff] [blame] | 1411 | goto out_iput; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1412 | } |
Christoph Hellwig | 7439449 | 2007-08-30 17:21:22 +1000 | [diff] [blame] | 1413 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1414 | return 0; |
| 1415 | |
Christoph Hellwig | 120226c | 2008-05-20 15:11:11 +1000 | [diff] [blame] | 1416 | out_filestream_unmount: |
| 1417 | xfs_filestream_unmount(mp); |
Christoph Hellwig | effa2ed | 2008-05-20 15:11:05 +1000 | [diff] [blame] | 1418 | out_free_sb: |
| 1419 | xfs_freesb(mp); |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 1420 | out_destroy_counters: |
Christoph Hellwig | c962fb7 | 2008-05-20 15:10:52 +1000 | [diff] [blame] | 1421 | xfs_icsb_destroy_counters(mp); |
Christoph Hellwig | 61ba35d | 2010-09-30 02:25:54 +0000 | [diff] [blame] | 1422 | out_close_devices: |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 1423 | xfs_close_devices(mp); |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 1424 | out_free_fsname: |
| 1425 | xfs_free_fsname(mp); |
Christoph Hellwig | c962fb7 | 2008-05-20 15:10:52 +1000 | [diff] [blame] | 1426 | kfree(mp); |
Christoph Hellwig | 9d565ff | 2008-10-30 17:53:24 +1100 | [diff] [blame] | 1427 | out: |
Christoph Hellwig | c962fb7 | 2008-05-20 15:10:52 +1000 | [diff] [blame] | 1428 | return -error; |
Christoph Hellwig | f8f15e4 | 2008-05-20 11:30:59 +1000 | [diff] [blame] | 1429 | |
Christoph Hellwig | 2bcf6e9 | 2011-07-13 13:43:48 +0200 | [diff] [blame] | 1430 | out_iput: |
| 1431 | iput(root); |
| 1432 | out_syncd_stop: |
Dave Chinner | 704b290 | 2011-03-26 09:14:57 +1100 | [diff] [blame] | 1433 | xfs_syncd_stop(mp); |
Christoph Hellwig | 2bcf6e9 | 2011-07-13 13:43:48 +0200 | [diff] [blame] | 1434 | out_unmount: |
Christoph Hellwig | e48ad31 | 2008-05-20 11:30:52 +1000 | [diff] [blame] | 1435 | /* |
| 1436 | * Blow away any referenced inode in the filestreams cache. |
| 1437 | * This can and will cause log traffic as inodes go inactive |
| 1438 | * here. |
| 1439 | */ |
| 1440 | xfs_filestream_unmount(mp); |
| 1441 | |
| 1442 | XFS_bflush(mp->m_ddev_targp); |
Christoph Hellwig | e48ad31 | 2008-05-20 11:30:52 +1000 | [diff] [blame] | 1443 | |
Christoph Hellwig | 19f354d | 2008-05-20 11:31:13 +1000 | [diff] [blame] | 1444 | xfs_unmountfs(mp); |
Christoph Hellwig | 6203300 | 2008-08-13 16:50:21 +1000 | [diff] [blame] | 1445 | goto out_free_sb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1446 | } |
| 1447 | |
Al Viro | 152a083 | 2010-07-25 00:46:55 +0400 | [diff] [blame] | 1448 | STATIC struct dentry * |
| 1449 | xfs_fs_mount( |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1450 | struct file_system_type *fs_type, |
| 1451 | int flags, |
| 1452 | const char *dev_name, |
Al Viro | 152a083 | 2010-07-25 00:46:55 +0400 | [diff] [blame] | 1453 | void *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1454 | { |
Al Viro | 152a083 | 2010-07-25 00:46:55 +0400 | [diff] [blame] | 1455 | return mount_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1456 | } |
| 1457 | |
Dave Chinner | 8daaa83 | 2011-07-08 14:14:46 +1000 | [diff] [blame] | 1458 | static int |
| 1459 | xfs_fs_nr_cached_objects( |
| 1460 | struct super_block *sb) |
| 1461 | { |
| 1462 | return xfs_reclaim_inodes_count(XFS_M(sb)); |
| 1463 | } |
| 1464 | |
| 1465 | static void |
| 1466 | xfs_fs_free_cached_objects( |
| 1467 | struct super_block *sb, |
| 1468 | int nr_to_scan) |
| 1469 | { |
| 1470 | xfs_reclaim_inodes_nr(XFS_M(sb), nr_to_scan); |
| 1471 | } |
| 1472 | |
Alexey Dobriyan | b87221d | 2009-09-21 17:01:09 -0700 | [diff] [blame] | 1473 | static const struct super_operations xfs_super_operations = { |
Nathan Scott | a50cd26 | 2006-03-14 14:06:18 +1100 | [diff] [blame] | 1474 | .alloc_inode = xfs_fs_alloc_inode, |
| 1475 | .destroy_inode = xfs_fs_destroy_inode, |
Christoph Hellwig | f9581b1 | 2009-10-06 20:29:26 +0000 | [diff] [blame] | 1476 | .dirty_inode = xfs_fs_dirty_inode, |
Nathan Scott | a50cd26 | 2006-03-14 14:06:18 +1100 | [diff] [blame] | 1477 | .write_inode = xfs_fs_write_inode, |
Al Viro | b57922d | 2010-06-07 14:34:48 -0400 | [diff] [blame] | 1478 | .evict_inode = xfs_fs_evict_inode, |
Nathan Scott | a50cd26 | 2006-03-14 14:06:18 +1100 | [diff] [blame] | 1479 | .put_super = xfs_fs_put_super, |
Christoph Hellwig | 69961a2 | 2009-10-06 20:29:28 +0000 | [diff] [blame] | 1480 | .sync_fs = xfs_fs_sync_fs, |
Takashi Sato | c4be0c1 | 2009-01-09 16:40:58 -0800 | [diff] [blame] | 1481 | .freeze_fs = xfs_fs_freeze, |
Eric Sandeen | d5db0f9 | 2010-02-05 22:59:53 +0000 | [diff] [blame] | 1482 | .unfreeze_fs = xfs_fs_unfreeze, |
Nathan Scott | a50cd26 | 2006-03-14 14:06:18 +1100 | [diff] [blame] | 1483 | .statfs = xfs_fs_statfs, |
| 1484 | .remount_fs = xfs_fs_remount, |
| 1485 | .show_options = xfs_fs_show_options, |
Dave Chinner | 8daaa83 | 2011-07-08 14:14:46 +1000 | [diff] [blame] | 1486 | .nr_cached_objects = xfs_fs_nr_cached_objects, |
| 1487 | .free_cached_objects = xfs_fs_free_cached_objects, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1488 | }; |
| 1489 | |
Andrew Morton | 5085b60 | 2007-02-20 13:57:47 -0800 | [diff] [blame] | 1490 | static struct file_system_type xfs_fs_type = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1491 | .owner = THIS_MODULE, |
| 1492 | .name = "xfs", |
Al Viro | 152a083 | 2010-07-25 00:46:55 +0400 | [diff] [blame] | 1493 | .mount = xfs_fs_mount, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1494 | .kill_sb = kill_block_super, |
| 1495 | .fs_flags = FS_REQUIRES_DEV, |
| 1496 | }; |
| 1497 | |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1498 | STATIC int __init |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1499 | xfs_init_zones(void) |
| 1500 | { |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1501 | |
| 1502 | xfs_ioend_zone = kmem_zone_init(sizeof(xfs_ioend_t), "xfs_ioend"); |
| 1503 | if (!xfs_ioend_zone) |
David Chinner | bf90424 | 2008-10-30 17:36:14 +1100 | [diff] [blame] | 1504 | goto out; |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1505 | |
| 1506 | xfs_ioend_pool = mempool_create_slab_pool(4 * MAX_BUF_PER_PAGE, |
| 1507 | xfs_ioend_zone); |
| 1508 | if (!xfs_ioend_pool) |
| 1509 | goto out_destroy_ioend_zone; |
| 1510 | |
| 1511 | xfs_log_ticket_zone = kmem_zone_init(sizeof(xlog_ticket_t), |
| 1512 | "xfs_log_ticket"); |
| 1513 | if (!xfs_log_ticket_zone) |
| 1514 | goto out_destroy_ioend_pool; |
| 1515 | |
| 1516 | xfs_bmap_free_item_zone = kmem_zone_init(sizeof(xfs_bmap_free_item_t), |
| 1517 | "xfs_bmap_free_item"); |
| 1518 | if (!xfs_bmap_free_item_zone) |
| 1519 | goto out_destroy_log_ticket_zone; |
David Chinner | bf90424 | 2008-10-30 17:36:14 +1100 | [diff] [blame] | 1520 | |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1521 | xfs_btree_cur_zone = kmem_zone_init(sizeof(xfs_btree_cur_t), |
| 1522 | "xfs_btree_cur"); |
| 1523 | if (!xfs_btree_cur_zone) |
| 1524 | goto out_destroy_bmap_free_item_zone; |
| 1525 | |
| 1526 | xfs_da_state_zone = kmem_zone_init(sizeof(xfs_da_state_t), |
| 1527 | "xfs_da_state"); |
| 1528 | if (!xfs_da_state_zone) |
| 1529 | goto out_destroy_btree_cur_zone; |
| 1530 | |
| 1531 | xfs_dabuf_zone = kmem_zone_init(sizeof(xfs_dabuf_t), "xfs_dabuf"); |
| 1532 | if (!xfs_dabuf_zone) |
| 1533 | goto out_destroy_da_state_zone; |
| 1534 | |
| 1535 | xfs_ifork_zone = kmem_zone_init(sizeof(xfs_ifork_t), "xfs_ifork"); |
| 1536 | if (!xfs_ifork_zone) |
| 1537 | goto out_destroy_dabuf_zone; |
| 1538 | |
| 1539 | xfs_trans_zone = kmem_zone_init(sizeof(xfs_trans_t), "xfs_trans"); |
| 1540 | if (!xfs_trans_zone) |
| 1541 | goto out_destroy_ifork_zone; |
| 1542 | |
Christoph Hellwig | e98c414 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 1543 | xfs_log_item_desc_zone = |
| 1544 | kmem_zone_init(sizeof(struct xfs_log_item_desc), |
| 1545 | "xfs_log_item_desc"); |
| 1546 | if (!xfs_log_item_desc_zone) |
| 1547 | goto out_destroy_trans_zone; |
| 1548 | |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1549 | /* |
| 1550 | * The size of the zone allocated buf log item is the maximum |
| 1551 | * size possible under XFS. This wastes a little bit of memory, |
| 1552 | * but it is much faster. |
| 1553 | */ |
| 1554 | xfs_buf_item_zone = kmem_zone_init((sizeof(xfs_buf_log_item_t) + |
Dave Chinner | c115541 | 2010-05-07 11:05:19 +1000 | [diff] [blame] | 1555 | (((XFS_MAX_BLOCKSIZE / XFS_BLF_CHUNK) / |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1556 | NBWORD) * sizeof(int))), "xfs_buf_item"); |
| 1557 | if (!xfs_buf_item_zone) |
Christoph Hellwig | e98c414 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 1558 | goto out_destroy_log_item_desc_zone; |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1559 | |
| 1560 | xfs_efd_zone = kmem_zone_init((sizeof(xfs_efd_log_item_t) + |
| 1561 | ((XFS_EFD_MAX_FAST_EXTENTS - 1) * |
| 1562 | sizeof(xfs_extent_t))), "xfs_efd_item"); |
| 1563 | if (!xfs_efd_zone) |
| 1564 | goto out_destroy_buf_item_zone; |
| 1565 | |
| 1566 | xfs_efi_zone = kmem_zone_init((sizeof(xfs_efi_log_item_t) + |
| 1567 | ((XFS_EFI_MAX_FAST_EXTENTS - 1) * |
| 1568 | sizeof(xfs_extent_t))), "xfs_efi_item"); |
| 1569 | if (!xfs_efi_zone) |
| 1570 | goto out_destroy_efd_zone; |
| 1571 | |
| 1572 | xfs_inode_zone = |
| 1573 | kmem_zone_init_flags(sizeof(xfs_inode_t), "xfs_inode", |
David Chinner | bf90424 | 2008-10-30 17:36:14 +1100 | [diff] [blame] | 1574 | KM_ZONE_HWALIGN | KM_ZONE_RECLAIM | KM_ZONE_SPREAD, |
| 1575 | xfs_fs_inode_init_once); |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1576 | if (!xfs_inode_zone) |
| 1577 | goto out_destroy_efi_zone; |
| 1578 | |
| 1579 | xfs_ili_zone = |
| 1580 | kmem_zone_init_flags(sizeof(xfs_inode_log_item_t), "xfs_ili", |
| 1581 | KM_ZONE_SPREAD, NULL); |
| 1582 | if (!xfs_ili_zone) |
| 1583 | goto out_destroy_inode_zone; |
| 1584 | |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1585 | return 0; |
| 1586 | |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1587 | out_destroy_inode_zone: |
| 1588 | kmem_zone_destroy(xfs_inode_zone); |
| 1589 | out_destroy_efi_zone: |
| 1590 | kmem_zone_destroy(xfs_efi_zone); |
| 1591 | out_destroy_efd_zone: |
| 1592 | kmem_zone_destroy(xfs_efd_zone); |
| 1593 | out_destroy_buf_item_zone: |
| 1594 | kmem_zone_destroy(xfs_buf_item_zone); |
Christoph Hellwig | e98c414 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 1595 | out_destroy_log_item_desc_zone: |
| 1596 | kmem_zone_destroy(xfs_log_item_desc_zone); |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1597 | out_destroy_trans_zone: |
| 1598 | kmem_zone_destroy(xfs_trans_zone); |
| 1599 | out_destroy_ifork_zone: |
| 1600 | kmem_zone_destroy(xfs_ifork_zone); |
| 1601 | out_destroy_dabuf_zone: |
| 1602 | kmem_zone_destroy(xfs_dabuf_zone); |
| 1603 | out_destroy_da_state_zone: |
| 1604 | kmem_zone_destroy(xfs_da_state_zone); |
| 1605 | out_destroy_btree_cur_zone: |
| 1606 | kmem_zone_destroy(xfs_btree_cur_zone); |
| 1607 | out_destroy_bmap_free_item_zone: |
| 1608 | kmem_zone_destroy(xfs_bmap_free_item_zone); |
| 1609 | out_destroy_log_ticket_zone: |
| 1610 | kmem_zone_destroy(xfs_log_ticket_zone); |
| 1611 | out_destroy_ioend_pool: |
| 1612 | mempool_destroy(xfs_ioend_pool); |
| 1613 | out_destroy_ioend_zone: |
| 1614 | kmem_zone_destroy(xfs_ioend_zone); |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1615 | out: |
| 1616 | return -ENOMEM; |
| 1617 | } |
| 1618 | |
| 1619 | STATIC void |
| 1620 | xfs_destroy_zones(void) |
| 1621 | { |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1622 | kmem_zone_destroy(xfs_ili_zone); |
| 1623 | kmem_zone_destroy(xfs_inode_zone); |
| 1624 | kmem_zone_destroy(xfs_efi_zone); |
| 1625 | kmem_zone_destroy(xfs_efd_zone); |
| 1626 | kmem_zone_destroy(xfs_buf_item_zone); |
Christoph Hellwig | e98c414 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 1627 | kmem_zone_destroy(xfs_log_item_desc_zone); |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1628 | kmem_zone_destroy(xfs_trans_zone); |
| 1629 | kmem_zone_destroy(xfs_ifork_zone); |
| 1630 | kmem_zone_destroy(xfs_dabuf_zone); |
| 1631 | kmem_zone_destroy(xfs_da_state_zone); |
| 1632 | kmem_zone_destroy(xfs_btree_cur_zone); |
| 1633 | kmem_zone_destroy(xfs_bmap_free_item_zone); |
| 1634 | kmem_zone_destroy(xfs_log_ticket_zone); |
| 1635 | mempool_destroy(xfs_ioend_pool); |
| 1636 | kmem_zone_destroy(xfs_ioend_zone); |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1637 | |
| 1638 | } |
| 1639 | |
| 1640 | STATIC int __init |
Dave Chinner | 0bf6a5b | 2011-04-08 12:45:07 +1000 | [diff] [blame] | 1641 | xfs_init_workqueues(void) |
| 1642 | { |
| 1643 | /* |
| 1644 | * max_active is set to 8 to give enough concurency to allow |
| 1645 | * multiple work operations on each CPU to run. This allows multiple |
| 1646 | * filesystems to be running sync work concurrently, and scales with |
| 1647 | * the number of CPUs in the system. |
| 1648 | */ |
| 1649 | xfs_syncd_wq = alloc_workqueue("xfssyncd", WQ_CPU_INTENSIVE, 8); |
| 1650 | if (!xfs_syncd_wq) |
| 1651 | goto out; |
| 1652 | |
| 1653 | xfs_ail_wq = alloc_workqueue("xfsail", WQ_CPU_INTENSIVE, 8); |
| 1654 | if (!xfs_ail_wq) |
| 1655 | goto out_destroy_syncd; |
| 1656 | |
| 1657 | return 0; |
| 1658 | |
| 1659 | out_destroy_syncd: |
| 1660 | destroy_workqueue(xfs_syncd_wq); |
| 1661 | out: |
| 1662 | return -ENOMEM; |
| 1663 | } |
| 1664 | |
Luck, Tony | 39411f8 | 2011-04-11 12:06:12 -0700 | [diff] [blame] | 1665 | STATIC void |
Dave Chinner | 0bf6a5b | 2011-04-08 12:45:07 +1000 | [diff] [blame] | 1666 | xfs_destroy_workqueues(void) |
| 1667 | { |
| 1668 | destroy_workqueue(xfs_ail_wq); |
| 1669 | destroy_workqueue(xfs_syncd_wq); |
| 1670 | } |
| 1671 | |
| 1672 | STATIC int __init |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1673 | init_xfs_fs(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1674 | { |
| 1675 | int error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1676 | |
Christoph Hellwig | 6579591 | 2008-11-28 14:23:33 +1100 | [diff] [blame] | 1677 | printk(KERN_INFO XFS_VERSION_STRING " with " |
| 1678 | XFS_BUILD_OPTIONS " enabled\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1679 | |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1680 | xfs_dir_startup(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1681 | |
Nathan Scott | 8758280 | 2006-03-14 13:18:19 +1100 | [diff] [blame] | 1682 | error = xfs_init_zones(); |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1683 | if (error) |
| 1684 | goto out; |
| 1685 | |
Dave Chinner | 0bf6a5b | 2011-04-08 12:45:07 +1000 | [diff] [blame] | 1686 | error = xfs_init_workqueues(); |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1687 | if (error) |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 1688 | goto out_destroy_zones; |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1689 | |
Dave Chinner | 0bf6a5b | 2011-04-08 12:45:07 +1000 | [diff] [blame] | 1690 | error = xfs_mru_cache_init(); |
| 1691 | if (error) |
| 1692 | goto out_destroy_wq; |
| 1693 | |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1694 | error = xfs_filestream_init(); |
| 1695 | if (error) |
| 1696 | goto out_mru_cache_uninit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1697 | |
Nathan Scott | ce8e922 | 2006-01-11 15:39:08 +1100 | [diff] [blame] | 1698 | error = xfs_buf_init(); |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1699 | if (error) |
| 1700 | goto out_filestream_uninit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1701 | |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1702 | error = xfs_init_procfs(); |
| 1703 | if (error) |
| 1704 | goto out_buf_terminate; |
| 1705 | |
| 1706 | error = xfs_sysctl_register(); |
| 1707 | if (error) |
| 1708 | goto out_cleanup_procfs; |
| 1709 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1710 | vfs_initquota(); |
| 1711 | |
| 1712 | error = register_filesystem(&xfs_fs_type); |
| 1713 | if (error) |
Dave Chinner | 0bf6a5b | 2011-04-08 12:45:07 +1000 | [diff] [blame] | 1714 | goto out_sysctl_unregister; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1715 | return 0; |
| 1716 | |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1717 | out_sysctl_unregister: |
| 1718 | xfs_sysctl_unregister(); |
| 1719 | out_cleanup_procfs: |
| 1720 | xfs_cleanup_procfs(); |
| 1721 | out_buf_terminate: |
Nathan Scott | ce8e922 | 2006-01-11 15:39:08 +1100 | [diff] [blame] | 1722 | xfs_buf_terminate(); |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1723 | out_filestream_uninit: |
| 1724 | xfs_filestream_uninit(); |
| 1725 | out_mru_cache_uninit: |
| 1726 | xfs_mru_cache_uninit(); |
Dave Chinner | 0bf6a5b | 2011-04-08 12:45:07 +1000 | [diff] [blame] | 1727 | out_destroy_wq: |
| 1728 | xfs_destroy_workqueues(); |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1729 | out_destroy_zones: |
Nathan Scott | 8758280 | 2006-03-14 13:18:19 +1100 | [diff] [blame] | 1730 | xfs_destroy_zones(); |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1731 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1732 | return error; |
| 1733 | } |
| 1734 | |
| 1735 | STATIC void __exit |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1736 | exit_xfs_fs(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1737 | { |
| 1738 | vfs_exitquota(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1739 | unregister_filesystem(&xfs_fs_type); |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1740 | xfs_sysctl_unregister(); |
| 1741 | xfs_cleanup_procfs(); |
Nathan Scott | ce8e922 | 2006-01-11 15:39:08 +1100 | [diff] [blame] | 1742 | xfs_buf_terminate(); |
Christoph Hellwig | 9f8868f | 2008-07-18 17:11:46 +1000 | [diff] [blame] | 1743 | xfs_filestream_uninit(); |
| 1744 | xfs_mru_cache_uninit(); |
Dave Chinner | 0bf6a5b | 2011-04-08 12:45:07 +1000 | [diff] [blame] | 1745 | xfs_destroy_workqueues(); |
Nathan Scott | 8758280 | 2006-03-14 13:18:19 +1100 | [diff] [blame] | 1746 | xfs_destroy_zones(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1747 | } |
| 1748 | |
| 1749 | module_init(init_xfs_fs); |
| 1750 | module_exit(exit_xfs_fs); |
| 1751 | |
| 1752 | MODULE_AUTHOR("Silicon Graphics, Inc."); |
| 1753 | MODULE_DESCRIPTION(XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled"); |
| 1754 | MODULE_LICENSE("GPL"); |