David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. |
Bob Peterson | cf45b75 | 2008-01-31 10:31:39 -0600 | [diff] [blame] | 3 | * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved. |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 4 | * |
| 5 | * This copyrighted material is made available to anyone wishing to use, |
| 6 | * modify, copy, or redistribute it subject to the terms and conditions |
Steven Whitehouse | e9fc2aa | 2006-09-01 11:05:15 -0400 | [diff] [blame] | 7 | * of the GNU General Public License version 2. |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 8 | */ |
| 9 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 10 | #include <linux/spinlock.h> |
| 11 | #include <linux/completion.h> |
| 12 | #include <linux/buffer_head.h> |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 13 | #include <linux/gfs2_ondisk.h> |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 14 | #include <linux/bio.h> |
Steven Whitehouse | c65f7fb | 2009-10-02 11:54:39 +0100 | [diff] [blame] | 15 | #include <linux/posix_acl.h> |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 16 | |
| 17 | #include "gfs2.h" |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 18 | #include "incore.h" |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 19 | #include "bmap.h" |
| 20 | #include "glock.h" |
| 21 | #include "glops.h" |
| 22 | #include "inode.h" |
| 23 | #include "log.h" |
| 24 | #include "meta_io.h" |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 25 | #include "recovery.h" |
| 26 | #include "rgrp.h" |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 27 | #include "util.h" |
Steven Whitehouse | ddacfaf | 2006-10-03 11:10:41 -0400 | [diff] [blame] | 28 | #include "trans.h" |
Steven Whitehouse | 17d539f | 2011-06-15 10:29:37 +0100 | [diff] [blame] | 29 | #include "dir.h" |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 30 | |
Steven Whitehouse | 7554918 | 2011-08-02 13:09:36 +0100 | [diff] [blame] | 31 | static void gfs2_ail_error(struct gfs2_glock *gl, const struct buffer_head *bh) |
| 32 | { |
| 33 | fs_err(gl->gl_sbd, "AIL buffer %p: blocknr %llu state 0x%08lx mapping %p page state 0x%lx\n", |
| 34 | bh, (unsigned long long)bh->b_blocknr, bh->b_state, |
| 35 | bh->b_page->mapping, bh->b_page->flags); |
| 36 | fs_err(gl->gl_sbd, "AIL glock %u:%llu mapping %p\n", |
| 37 | gl->gl_name.ln_type, gl->gl_name.ln_number, |
| 38 | gfs2_glock2aspace(gl)); |
| 39 | gfs2_lm_withdraw(gl->gl_sbd, "AIL error\n"); |
| 40 | } |
| 41 | |
Steven Whitehouse | ddacfaf | 2006-10-03 11:10:41 -0400 | [diff] [blame] | 42 | /** |
Steven Whitehouse | dba898b | 2011-04-14 09:54:02 +0100 | [diff] [blame] | 43 | * __gfs2_ail_flush - remove all buffers for a given lock from the AIL |
Steven Whitehouse | ddacfaf | 2006-10-03 11:10:41 -0400 | [diff] [blame] | 44 | * @gl: the glock |
Steven Whitehouse | b5b24d7 | 2011-09-07 10:33:25 +0100 | [diff] [blame] | 45 | * @fsync: set when called from fsync (not all buffers will be clean) |
Steven Whitehouse | ddacfaf | 2006-10-03 11:10:41 -0400 | [diff] [blame] | 46 | * |
| 47 | * None of the buffers should be dirty, locked, or pinned. |
| 48 | */ |
| 49 | |
Benjamin Marzinski | 1bc333f | 2013-07-26 17:09:33 -0500 | [diff] [blame] | 50 | static void __gfs2_ail_flush(struct gfs2_glock *gl, bool fsync, |
| 51 | unsigned int nr_revokes) |
Steven Whitehouse | ddacfaf | 2006-10-03 11:10:41 -0400 | [diff] [blame] | 52 | { |
| 53 | struct gfs2_sbd *sdp = gl->gl_sbd; |
Steven Whitehouse | ddacfaf | 2006-10-03 11:10:41 -0400 | [diff] [blame] | 54 | struct list_head *head = &gl->gl_ail_list; |
Steven Whitehouse | b5b24d7 | 2011-09-07 10:33:25 +0100 | [diff] [blame] | 55 | struct gfs2_bufdata *bd, *tmp; |
Steven Whitehouse | ddacfaf | 2006-10-03 11:10:41 -0400 | [diff] [blame] | 56 | struct buffer_head *bh; |
Steven Whitehouse | b5b24d7 | 2011-09-07 10:33:25 +0100 | [diff] [blame] | 57 | const unsigned long b_state = (1UL << BH_Dirty)|(1UL << BH_Pinned)|(1UL << BH_Lock); |
Steven Whitehouse | ddacfaf | 2006-10-03 11:10:41 -0400 | [diff] [blame] | 58 | |
Steven Whitehouse | b5b24d7 | 2011-09-07 10:33:25 +0100 | [diff] [blame] | 59 | gfs2_log_lock(sdp); |
Dave Chinner | d6a079e | 2011-03-11 11:52:25 +0000 | [diff] [blame] | 60 | spin_lock(&sdp->sd_ail_lock); |
Benjamin Marzinski | 1bc333f | 2013-07-26 17:09:33 -0500 | [diff] [blame] | 61 | list_for_each_entry_safe_reverse(bd, tmp, head, bd_ail_gl_list) { |
| 62 | if (nr_revokes == 0) |
| 63 | break; |
Steven Whitehouse | ddacfaf | 2006-10-03 11:10:41 -0400 | [diff] [blame] | 64 | bh = bd->bd_bh; |
Steven Whitehouse | b5b24d7 | 2011-09-07 10:33:25 +0100 | [diff] [blame] | 65 | if (bh->b_state & b_state) { |
| 66 | if (fsync) |
| 67 | continue; |
Steven Whitehouse | 7554918 | 2011-08-02 13:09:36 +0100 | [diff] [blame] | 68 | gfs2_ail_error(gl, bh); |
Steven Whitehouse | b5b24d7 | 2011-09-07 10:33:25 +0100 | [diff] [blame] | 69 | } |
Steven Whitehouse | 1ad38c4 | 2007-09-03 11:01:33 +0100 | [diff] [blame] | 70 | gfs2_trans_add_revoke(sdp, bd); |
Benjamin Marzinski | 1bc333f | 2013-07-26 17:09:33 -0500 | [diff] [blame] | 71 | nr_revokes--; |
Steven Whitehouse | ddacfaf | 2006-10-03 11:10:41 -0400 | [diff] [blame] | 72 | } |
Steven Whitehouse | 8eae1ca | 2012-10-15 10:57:02 +0100 | [diff] [blame] | 73 | GLOCK_BUG_ON(gl, !fsync && atomic_read(&gl->gl_ail_count)); |
Dave Chinner | d6a079e | 2011-03-11 11:52:25 +0000 | [diff] [blame] | 74 | spin_unlock(&sdp->sd_ail_lock); |
Steven Whitehouse | b5b24d7 | 2011-09-07 10:33:25 +0100 | [diff] [blame] | 75 | gfs2_log_unlock(sdp); |
Steven Whitehouse | dba898b | 2011-04-14 09:54:02 +0100 | [diff] [blame] | 76 | } |
Steven Whitehouse | ddacfaf | 2006-10-03 11:10:41 -0400 | [diff] [blame] | 77 | |
Steven Whitehouse | dba898b | 2011-04-14 09:54:02 +0100 | [diff] [blame] | 78 | |
| 79 | static void gfs2_ail_empty_gl(struct gfs2_glock *gl) |
| 80 | { |
| 81 | struct gfs2_sbd *sdp = gl->gl_sbd; |
| 82 | struct gfs2_trans tr; |
| 83 | |
| 84 | memset(&tr, 0, sizeof(tr)); |
Steven Whitehouse | d69a3c6 | 2014-02-21 15:22:35 +0000 | [diff] [blame] | 85 | INIT_LIST_HEAD(&tr.tr_buf); |
| 86 | INIT_LIST_HEAD(&tr.tr_databuf); |
Steven Whitehouse | dba898b | 2011-04-14 09:54:02 +0100 | [diff] [blame] | 87 | tr.tr_revokes = atomic_read(&gl->gl_ail_count); |
| 88 | |
| 89 | if (!tr.tr_revokes) |
| 90 | return; |
| 91 | |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 92 | /* A shortened, inline version of gfs2_trans_begin() |
| 93 | * tr->alloced is not set since the transaction structure is |
| 94 | * on the stack */ |
Steven Whitehouse | dba898b | 2011-04-14 09:54:02 +0100 | [diff] [blame] | 95 | tr.tr_reserved = 1 + gfs2_struct2blk(sdp, tr.tr_revokes, sizeof(u64)); |
Fabian Frederick | d29c0af | 2014-10-03 20:15:36 +0200 | [diff] [blame] | 96 | tr.tr_ip = _RET_IP_; |
Eric Sandeen | a0b4df2 | 2012-09-17 21:50:31 -0500 | [diff] [blame] | 97 | sb_start_intwrite(sdp->sd_vfs); |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 98 | if (gfs2_log_reserve(sdp, tr.tr_reserved) < 0) { |
| 99 | sb_end_intwrite(sdp->sd_vfs); |
| 100 | return; |
| 101 | } |
Steven Whitehouse | 8eae1ca | 2012-10-15 10:57:02 +0100 | [diff] [blame] | 102 | WARN_ON_ONCE(current->journal_info); |
Steven Whitehouse | dba898b | 2011-04-14 09:54:02 +0100 | [diff] [blame] | 103 | current->journal_info = &tr; |
| 104 | |
Benjamin Marzinski | 1bc333f | 2013-07-26 17:09:33 -0500 | [diff] [blame] | 105 | __gfs2_ail_flush(gl, 0, tr.tr_revokes); |
Steven Whitehouse | dba898b | 2011-04-14 09:54:02 +0100 | [diff] [blame] | 106 | |
| 107 | gfs2_trans_end(sdp); |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 108 | gfs2_log_flush(sdp, NULL, NORMAL_FLUSH); |
Steven Whitehouse | dba898b | 2011-04-14 09:54:02 +0100 | [diff] [blame] | 109 | } |
| 110 | |
Steven Whitehouse | b5b24d7 | 2011-09-07 10:33:25 +0100 | [diff] [blame] | 111 | void gfs2_ail_flush(struct gfs2_glock *gl, bool fsync) |
Steven Whitehouse | dba898b | 2011-04-14 09:54:02 +0100 | [diff] [blame] | 112 | { |
| 113 | struct gfs2_sbd *sdp = gl->gl_sbd; |
| 114 | unsigned int revokes = atomic_read(&gl->gl_ail_count); |
Benjamin Marzinski | 1bc333f | 2013-07-26 17:09:33 -0500 | [diff] [blame] | 115 | unsigned int max_revokes = (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_log_descriptor)) / sizeof(u64); |
Steven Whitehouse | dba898b | 2011-04-14 09:54:02 +0100 | [diff] [blame] | 116 | int ret; |
| 117 | |
| 118 | if (!revokes) |
| 119 | return; |
| 120 | |
Benjamin Marzinski | 1bc333f | 2013-07-26 17:09:33 -0500 | [diff] [blame] | 121 | while (revokes > max_revokes) |
| 122 | max_revokes += (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_meta_header)) / sizeof(u64); |
| 123 | |
| 124 | ret = gfs2_trans_begin(sdp, 0, max_revokes); |
Steven Whitehouse | dba898b | 2011-04-14 09:54:02 +0100 | [diff] [blame] | 125 | if (ret) |
| 126 | return; |
Benjamin Marzinski | 1bc333f | 2013-07-26 17:09:33 -0500 | [diff] [blame] | 127 | __gfs2_ail_flush(gl, fsync, max_revokes); |
Steven Whitehouse | ddacfaf | 2006-10-03 11:10:41 -0400 | [diff] [blame] | 128 | gfs2_trans_end(sdp); |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 129 | gfs2_log_flush(sdp, NULL, NORMAL_FLUSH); |
Steven Whitehouse | ddacfaf | 2006-10-03 11:10:41 -0400 | [diff] [blame] | 130 | } |
Steven Whitehouse | ba7f729 | 2006-07-26 11:27:10 -0400 | [diff] [blame] | 131 | |
| 132 | /** |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 133 | * rgrp_go_sync - sync out the metadata for this glock |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 134 | * @gl: the glock |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 135 | * |
| 136 | * Called when demoting or unlocking an EX glock. We must flush |
| 137 | * to disk all dirty buffers/pages relating to this glock, and must not |
| 138 | * not return to caller to demote/unlock the glock until I/O is complete. |
| 139 | */ |
| 140 | |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 141 | static void rgrp_go_sync(struct gfs2_glock *gl) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 142 | { |
Steven Whitehouse | 70d4ee9 | 2013-12-06 16:19:54 +0000 | [diff] [blame] | 143 | struct gfs2_sbd *sdp = gl->gl_sbd; |
| 144 | struct address_space *mapping = &sdp->sd_aspace; |
Steven Whitehouse | 8339ee5 | 2011-08-31 16:38:29 +0100 | [diff] [blame] | 145 | struct gfs2_rgrpd *rgd; |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 146 | int error; |
Steven Whitehouse | b5d32be | 2007-01-22 12:15:34 -0500 | [diff] [blame] | 147 | |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 148 | if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags)) |
| 149 | return; |
Steven Whitehouse | 8eae1ca | 2012-10-15 10:57:02 +0100 | [diff] [blame] | 150 | GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_EXCLUSIVE); |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 151 | |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 152 | gfs2_log_flush(sdp, gl, NORMAL_FLUSH); |
Steven Whitehouse | 70d4ee9 | 2013-12-06 16:19:54 +0000 | [diff] [blame] | 153 | filemap_fdatawrite_range(mapping, gl->gl_vm.start, gl->gl_vm.end); |
| 154 | error = filemap_fdatawait_range(mapping, gl->gl_vm.start, gl->gl_vm.end); |
| 155 | mapping_set_error(mapping, error); |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 156 | gfs2_ail_empty_gl(gl); |
Bob Peterson | 7c9ca62 | 2011-08-31 09:53:19 +0100 | [diff] [blame] | 157 | |
Steven Whitehouse | 8339ee5 | 2011-08-31 16:38:29 +0100 | [diff] [blame] | 158 | spin_lock(&gl->gl_spin); |
| 159 | rgd = gl->gl_object; |
| 160 | if (rgd) |
| 161 | gfs2_free_clones(rgd); |
| 162 | spin_unlock(&gl->gl_spin); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 163 | } |
| 164 | |
| 165 | /** |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 166 | * rgrp_go_inval - invalidate the metadata for this glock |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 167 | * @gl: the glock |
| 168 | * @flags: |
| 169 | * |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 170 | * We never used LM_ST_DEFERRED with resource groups, so that we |
| 171 | * should always see the metadata flag set here. |
| 172 | * |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 173 | */ |
| 174 | |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 175 | static void rgrp_go_inval(struct gfs2_glock *gl, int flags) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 176 | { |
Steven Whitehouse | 70d4ee9 | 2013-12-06 16:19:54 +0000 | [diff] [blame] | 177 | struct gfs2_sbd *sdp = gl->gl_sbd; |
| 178 | struct address_space *mapping = &sdp->sd_aspace; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 179 | |
Steven Whitehouse | 8eae1ca | 2012-10-15 10:57:02 +0100 | [diff] [blame] | 180 | WARN_ON_ONCE(!(flags & DIO_METADATA)); |
Steven Whitehouse | 70d4ee9 | 2013-12-06 16:19:54 +0000 | [diff] [blame] | 181 | gfs2_assert_withdraw(sdp, !atomic_read(&gl->gl_ail_count)); |
Steven Whitehouse | 7005c3e | 2013-12-06 10:16:14 +0000 | [diff] [blame] | 182 | truncate_inode_pages_range(mapping, gl->gl_vm.start, gl->gl_vm.end); |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 183 | |
| 184 | if (gl->gl_object) { |
Bob Peterson | cf45b75 | 2008-01-31 10:31:39 -0600 | [diff] [blame] | 185 | struct gfs2_rgrpd *rgd = (struct gfs2_rgrpd *)gl->gl_object; |
Bob Peterson | cf45b75 | 2008-01-31 10:31:39 -0600 | [diff] [blame] | 186 | rgd->rd_flags &= ~GFS2_RDF_UPTODATE; |
| 187 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 188 | } |
| 189 | |
| 190 | /** |
Steven Whitehouse | b5d32be | 2007-01-22 12:15:34 -0500 | [diff] [blame] | 191 | * inode_go_sync - Sync the dirty data and/or metadata for an inode glock |
| 192 | * @gl: the glock protecting the inode |
| 193 | * |
| 194 | */ |
| 195 | |
| 196 | static void inode_go_sync(struct gfs2_glock *gl) |
| 197 | { |
| 198 | struct gfs2_inode *ip = gl->gl_object; |
Steven Whitehouse | 009d851 | 2009-12-08 12:12:13 +0000 | [diff] [blame] | 199 | struct address_space *metamapping = gfs2_glock2aspace(gl); |
Steven Whitehouse | 3042a2c | 2007-11-02 08:39:34 +0000 | [diff] [blame] | 200 | int error; |
| 201 | |
Steven Whitehouse | b5d32be | 2007-01-22 12:15:34 -0500 | [diff] [blame] | 202 | if (ip && !S_ISREG(ip->i_inode.i_mode)) |
| 203 | ip = NULL; |
Steven Whitehouse | 582d2f7 | 2013-12-19 11:04:14 +0000 | [diff] [blame] | 204 | if (ip) { |
| 205 | if (test_and_clear_bit(GIF_SW_PAGED, &ip->i_flags)) |
| 206 | unmap_shared_mapping_range(ip->i_inode.i_mapping, 0, 0); |
| 207 | inode_dio_wait(&ip->i_inode); |
| 208 | } |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 209 | if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags)) |
| 210 | return; |
Steven Whitehouse | b5d32be | 2007-01-22 12:15:34 -0500 | [diff] [blame] | 211 | |
Steven Whitehouse | 8eae1ca | 2012-10-15 10:57:02 +0100 | [diff] [blame] | 212 | GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_EXCLUSIVE); |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 213 | |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 214 | gfs2_log_flush(gl->gl_sbd, gl, NORMAL_FLUSH); |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 215 | filemap_fdatawrite(metamapping); |
| 216 | if (ip) { |
| 217 | struct address_space *mapping = ip->i_inode.i_mapping; |
| 218 | filemap_fdatawrite(mapping); |
| 219 | error = filemap_fdatawait(mapping); |
| 220 | mapping_set_error(mapping, error); |
Steven Whitehouse | b5d32be | 2007-01-22 12:15:34 -0500 | [diff] [blame] | 221 | } |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 222 | error = filemap_fdatawait(metamapping); |
| 223 | mapping_set_error(metamapping, error); |
| 224 | gfs2_ail_empty_gl(gl); |
Steven Whitehouse | 52fcd11 | 2009-04-20 08:58:45 +0100 | [diff] [blame] | 225 | /* |
| 226 | * Writeback of the data mapping may cause the dirty flag to be set |
| 227 | * so we have to clear it again here. |
| 228 | */ |
Peter Zijlstra | 4e857c5 | 2014-03-17 18:06:10 +0100 | [diff] [blame] | 229 | smp_mb__before_atomic(); |
Steven Whitehouse | 52fcd11 | 2009-04-20 08:58:45 +0100 | [diff] [blame] | 230 | clear_bit(GLF_DIRTY, &gl->gl_flags); |
Steven Whitehouse | b5d32be | 2007-01-22 12:15:34 -0500 | [diff] [blame] | 231 | } |
| 232 | |
| 233 | /** |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 234 | * inode_go_inval - prepare a inode glock to be released |
| 235 | * @gl: the glock |
| 236 | * @flags: |
Geert Uytterhoeven | 6b49d1d | 2014-06-29 12:21:39 +0200 | [diff] [blame] | 237 | * |
| 238 | * Normally we invalidate everything, but if we are moving into |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 239 | * LM_ST_DEFERRED from LM_ST_SHARED or LM_ST_EXCLUSIVE then we |
| 240 | * can keep hold of the metadata, since it won't have changed. |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 241 | * |
| 242 | */ |
| 243 | |
| 244 | static void inode_go_inval(struct gfs2_glock *gl, int flags) |
| 245 | { |
Steven Whitehouse | b004157 | 2006-11-23 10:51:34 -0500 | [diff] [blame] | 246 | struct gfs2_inode *ip = gl->gl_object; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 247 | |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 248 | gfs2_assert_withdraw(gl->gl_sbd, !atomic_read(&gl->gl_ail_count)); |
| 249 | |
| 250 | if (flags & DIO_METADATA) { |
Steven Whitehouse | 009d851 | 2009-12-08 12:12:13 +0000 | [diff] [blame] | 251 | struct address_space *mapping = gfs2_glock2aspace(gl); |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 252 | truncate_inode_pages(mapping, 0); |
Steven Whitehouse | c65f7fb | 2009-10-02 11:54:39 +0100 | [diff] [blame] | 253 | if (ip) { |
Steven Whitehouse | b004157 | 2006-11-23 10:51:34 -0500 | [diff] [blame] | 254 | set_bit(GIF_INVALID, &ip->i_flags); |
Steven Whitehouse | c65f7fb | 2009-10-02 11:54:39 +0100 | [diff] [blame] | 255 | forget_all_cached_acls(&ip->i_inode); |
Steven Whitehouse | 17d539f | 2011-06-15 10:29:37 +0100 | [diff] [blame] | 256 | gfs2_dir_hash_inval(ip); |
Steven Whitehouse | c65f7fb | 2009-10-02 11:54:39 +0100 | [diff] [blame] | 257 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 258 | } |
Steven Whitehouse | b004157 | 2006-11-23 10:51:34 -0500 | [diff] [blame] | 259 | |
Benjamin Marzinski | 1ce5336 | 2011-06-13 14:27:40 -0500 | [diff] [blame] | 260 | if (ip == GFS2_I(gl->gl_sbd->sd_rindex)) { |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 261 | gfs2_log_flush(gl->gl_sbd, NULL, NORMAL_FLUSH); |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 262 | gl->gl_sbd->sd_rindex_uptodate = 0; |
Benjamin Marzinski | 1ce5336 | 2011-06-13 14:27:40 -0500 | [diff] [blame] | 263 | } |
Steven Whitehouse | 3cc3f71 | 2007-10-15 15:40:33 +0100 | [diff] [blame] | 264 | if (ip && S_ISREG(ip->i_inode.i_mode)) |
Steven Whitehouse | b004157 | 2006-11-23 10:51:34 -0500 | [diff] [blame] | 265 | truncate_inode_pages(ip->i_inode.i_mapping, 0); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 266 | } |
| 267 | |
| 268 | /** |
| 269 | * inode_go_demote_ok - Check to see if it's ok to unlock an inode glock |
| 270 | * @gl: the glock |
| 271 | * |
| 272 | * Returns: 1 if it's ok |
| 273 | */ |
| 274 | |
Steven Whitehouse | 97cc102 | 2008-11-20 13:39:47 +0000 | [diff] [blame] | 275 | static int inode_go_demote_ok(const struct gfs2_glock *gl) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 276 | { |
| 277 | struct gfs2_sbd *sdp = gl->gl_sbd; |
Steven Whitehouse | bc015cb | 2011-01-19 09:30:01 +0000 | [diff] [blame] | 278 | struct gfs2_holder *gh; |
| 279 | |
Steven Whitehouse | 97cc102 | 2008-11-20 13:39:47 +0000 | [diff] [blame] | 280 | if (sdp->sd_jindex == gl->gl_object || sdp->sd_rindex == gl->gl_object) |
| 281 | return 0; |
Steven Whitehouse | bc015cb | 2011-01-19 09:30:01 +0000 | [diff] [blame] | 282 | |
| 283 | if (!list_empty(&gl->gl_holders)) { |
| 284 | gh = list_entry(gl->gl_holders.next, struct gfs2_holder, gh_list); |
| 285 | if (gh->gh_list.next != &gl->gl_holders) |
| 286 | return 0; |
| 287 | } |
| 288 | |
Steven Whitehouse | 97cc102 | 2008-11-20 13:39:47 +0000 | [diff] [blame] | 289 | return 1; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 290 | } |
| 291 | |
| 292 | /** |
Steven Whitehouse | d4b2cf1 | 2011-05-09 13:49:59 +0100 | [diff] [blame] | 293 | * gfs2_set_nlink - Set the inode's link count based on on-disk info |
| 294 | * @inode: The inode in question |
| 295 | * @nlink: The link count |
| 296 | * |
| 297 | * If the link count has hit zero, it must never be raised, whatever the |
| 298 | * on-disk inode might say. When new struct inodes are created the link |
| 299 | * count is set to 1, so that we can safely use this test even when reading |
| 300 | * in on disk information for the first time. |
| 301 | */ |
| 302 | |
| 303 | static void gfs2_set_nlink(struct inode *inode, u32 nlink) |
| 304 | { |
| 305 | /* |
| 306 | * We will need to review setting the nlink count here in the |
| 307 | * light of the forthcoming ro bind mount work. This is a reminder |
| 308 | * to do that. |
| 309 | */ |
| 310 | if ((inode->i_nlink != nlink) && (inode->i_nlink != 0)) { |
| 311 | if (nlink == 0) |
| 312 | clear_nlink(inode); |
| 313 | else |
Miklos Szeredi | bfe8684 | 2011-10-28 14:13:29 +0200 | [diff] [blame] | 314 | set_nlink(inode, nlink); |
Steven Whitehouse | d4b2cf1 | 2011-05-09 13:49:59 +0100 | [diff] [blame] | 315 | } |
| 316 | } |
| 317 | |
| 318 | static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf) |
| 319 | { |
| 320 | const struct gfs2_dinode *str = buf; |
| 321 | struct timespec atime; |
| 322 | u16 height, depth; |
| 323 | |
| 324 | if (unlikely(ip->i_no_addr != be64_to_cpu(str->di_num.no_addr))) |
| 325 | goto corrupt; |
| 326 | ip->i_no_formal_ino = be64_to_cpu(str->di_num.no_formal_ino); |
| 327 | ip->i_inode.i_mode = be32_to_cpu(str->di_mode); |
| 328 | ip->i_inode.i_rdev = 0; |
| 329 | switch (ip->i_inode.i_mode & S_IFMT) { |
| 330 | case S_IFBLK: |
| 331 | case S_IFCHR: |
| 332 | ip->i_inode.i_rdev = MKDEV(be32_to_cpu(str->di_major), |
| 333 | be32_to_cpu(str->di_minor)); |
| 334 | break; |
| 335 | }; |
| 336 | |
Eric W. Biederman | d054642 | 2013-01-31 22:08:10 -0800 | [diff] [blame] | 337 | i_uid_write(&ip->i_inode, be32_to_cpu(str->di_uid)); |
| 338 | i_gid_write(&ip->i_inode, be32_to_cpu(str->di_gid)); |
Steven Whitehouse | d4b2cf1 | 2011-05-09 13:49:59 +0100 | [diff] [blame] | 339 | gfs2_set_nlink(&ip->i_inode, be32_to_cpu(str->di_nlink)); |
| 340 | i_size_write(&ip->i_inode, be64_to_cpu(str->di_size)); |
| 341 | gfs2_set_inode_blocks(&ip->i_inode, be64_to_cpu(str->di_blocks)); |
| 342 | atime.tv_sec = be64_to_cpu(str->di_atime); |
| 343 | atime.tv_nsec = be32_to_cpu(str->di_atime_nsec); |
| 344 | if (timespec_compare(&ip->i_inode.i_atime, &atime) < 0) |
| 345 | ip->i_inode.i_atime = atime; |
| 346 | ip->i_inode.i_mtime.tv_sec = be64_to_cpu(str->di_mtime); |
| 347 | ip->i_inode.i_mtime.tv_nsec = be32_to_cpu(str->di_mtime_nsec); |
| 348 | ip->i_inode.i_ctime.tv_sec = be64_to_cpu(str->di_ctime); |
| 349 | ip->i_inode.i_ctime.tv_nsec = be32_to_cpu(str->di_ctime_nsec); |
| 350 | |
| 351 | ip->i_goal = be64_to_cpu(str->di_goal_meta); |
| 352 | ip->i_generation = be64_to_cpu(str->di_generation); |
| 353 | |
| 354 | ip->i_diskflags = be32_to_cpu(str->di_flags); |
Steven Whitehouse | 9964afb | 2011-06-16 14:06:55 +0100 | [diff] [blame] | 355 | ip->i_eattr = be64_to_cpu(str->di_eattr); |
| 356 | /* i_diskflags and i_eattr must be set before gfs2_set_inode_flags() */ |
Steven Whitehouse | d4b2cf1 | 2011-05-09 13:49:59 +0100 | [diff] [blame] | 357 | gfs2_set_inode_flags(&ip->i_inode); |
| 358 | height = be16_to_cpu(str->di_height); |
| 359 | if (unlikely(height > GFS2_MAX_META_HEIGHT)) |
| 360 | goto corrupt; |
| 361 | ip->i_height = (u8)height; |
| 362 | |
| 363 | depth = be16_to_cpu(str->di_depth); |
| 364 | if (unlikely(depth > GFS2_DIR_MAX_DEPTH)) |
| 365 | goto corrupt; |
| 366 | ip->i_depth = (u8)depth; |
| 367 | ip->i_entries = be32_to_cpu(str->di_entries); |
| 368 | |
Steven Whitehouse | d4b2cf1 | 2011-05-09 13:49:59 +0100 | [diff] [blame] | 369 | if (S_ISREG(ip->i_inode.i_mode)) |
| 370 | gfs2_set_aops(&ip->i_inode); |
| 371 | |
| 372 | return 0; |
| 373 | corrupt: |
| 374 | gfs2_consist_inode(ip); |
| 375 | return -EIO; |
| 376 | } |
| 377 | |
| 378 | /** |
| 379 | * gfs2_inode_refresh - Refresh the incore copy of the dinode |
| 380 | * @ip: The GFS2 inode |
| 381 | * |
| 382 | * Returns: errno |
| 383 | */ |
| 384 | |
| 385 | int gfs2_inode_refresh(struct gfs2_inode *ip) |
| 386 | { |
| 387 | struct buffer_head *dibh; |
| 388 | int error; |
| 389 | |
| 390 | error = gfs2_meta_inode_buffer(ip, &dibh); |
| 391 | if (error) |
| 392 | return error; |
| 393 | |
Steven Whitehouse | d4b2cf1 | 2011-05-09 13:49:59 +0100 | [diff] [blame] | 394 | error = gfs2_dinode_in(ip, dibh->b_data); |
| 395 | brelse(dibh); |
| 396 | clear_bit(GIF_INVALID, &ip->i_flags); |
| 397 | |
| 398 | return error; |
| 399 | } |
| 400 | |
| 401 | /** |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 402 | * inode_go_lock - operation done after an inode lock is locked by a process |
| 403 | * @gl: the glock |
| 404 | * @flags: |
| 405 | * |
| 406 | * Returns: errno |
| 407 | */ |
| 408 | |
| 409 | static int inode_go_lock(struct gfs2_holder *gh) |
| 410 | { |
| 411 | struct gfs2_glock *gl = gh->gh_gl; |
Steven Whitehouse | 813e0c4 | 2008-11-18 13:38:48 +0000 | [diff] [blame] | 412 | struct gfs2_sbd *sdp = gl->gl_sbd; |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 413 | struct gfs2_inode *ip = gl->gl_object; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 414 | int error = 0; |
| 415 | |
Bob Peterson | 091806ed | 2008-04-29 12:35:48 -0500 | [diff] [blame] | 416 | if (!ip || (gh->gh_flags & GL_SKIP)) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 417 | return 0; |
| 418 | |
Steven Whitehouse | bfded27 | 2006-11-01 16:05:38 -0500 | [diff] [blame] | 419 | if (test_bit(GIF_INVALID, &ip->i_flags)) { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 420 | error = gfs2_inode_refresh(ip); |
| 421 | if (error) |
| 422 | return error; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 423 | } |
| 424 | |
Steven Whitehouse | 582d2f7 | 2013-12-19 11:04:14 +0000 | [diff] [blame] | 425 | if (gh->gh_state != LM_ST_DEFERRED) |
| 426 | inode_dio_wait(&ip->i_inode); |
| 427 | |
Steven Whitehouse | 383f01f | 2008-11-04 10:05:22 +0000 | [diff] [blame] | 428 | if ((ip->i_diskflags & GFS2_DIF_TRUNC_IN_PROG) && |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 429 | (gl->gl_state == LM_ST_EXCLUSIVE) && |
Steven Whitehouse | 813e0c4 | 2008-11-18 13:38:48 +0000 | [diff] [blame] | 430 | (gh->gh_state == LM_ST_EXCLUSIVE)) { |
| 431 | spin_lock(&sdp->sd_trunc_lock); |
| 432 | if (list_empty(&ip->i_trunc_list)) |
| 433 | list_add(&sdp->sd_trunc_list, &ip->i_trunc_list); |
| 434 | spin_unlock(&sdp->sd_trunc_lock); |
| 435 | wake_up(&sdp->sd_quota_wait); |
| 436 | return 1; |
| 437 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 438 | |
| 439 | return error; |
| 440 | } |
| 441 | |
| 442 | /** |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 443 | * inode_go_dump - print information about an inode |
| 444 | * @seq: The iterator |
| 445 | * @ip: the inode |
| 446 | * |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 447 | */ |
| 448 | |
Steven Whitehouse | ac3beb6 | 2014-01-16 10:31:13 +0000 | [diff] [blame] | 449 | static void inode_go_dump(struct seq_file *seq, const struct gfs2_glock *gl) |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 450 | { |
| 451 | const struct gfs2_inode *ip = gl->gl_object; |
| 452 | if (ip == NULL) |
Steven Whitehouse | ac3beb6 | 2014-01-16 10:31:13 +0000 | [diff] [blame] | 453 | return; |
Steven Whitehouse | a2e0f79 | 2010-08-11 09:53:11 +0100 | [diff] [blame] | 454 | gfs2_print_dbg(seq, " I: n:%llu/%llu t:%u f:0x%02lx d:0x%08x s:%llu\n", |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 455 | (unsigned long long)ip->i_no_formal_ino, |
| 456 | (unsigned long long)ip->i_no_addr, |
Steven Whitehouse | fa75ced | 2008-11-10 10:10:12 +0000 | [diff] [blame] | 457 | IF2DT(ip->i_inode.i_mode), ip->i_flags, |
| 458 | (unsigned int)ip->i_diskflags, |
Steven Whitehouse | a2e0f79 | 2010-08-11 09:53:11 +0100 | [diff] [blame] | 459 | (unsigned long long)i_size_read(&ip->i_inode)); |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 460 | } |
| 461 | |
| 462 | /** |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 463 | * freeze_go_sync - promote/demote the freeze glock |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 464 | * @gl: the glock |
| 465 | * @state: the requested state |
| 466 | * @flags: |
| 467 | * |
| 468 | */ |
| 469 | |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 470 | static void freeze_go_sync(struct gfs2_glock *gl) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 471 | { |
| 472 | struct gfs2_sbd *sdp = gl->gl_sbd; |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 473 | DEFINE_WAIT(wait); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 474 | |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 475 | if (gl->gl_state == LM_ST_SHARED && |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 476 | test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) { |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 477 | atomic_set(&sdp->sd_log_freeze, 1); |
| 478 | wake_up(&sdp->sd_logd_waitq); |
| 479 | do { |
| 480 | prepare_to_wait(&sdp->sd_log_frozen_wait, &wait, |
| 481 | TASK_UNINTERRUPTIBLE); |
| 482 | if (atomic_read(&sdp->sd_log_freeze)) |
| 483 | io_schedule(); |
| 484 | } while(atomic_read(&sdp->sd_log_freeze)); |
| 485 | finish_wait(&sdp->sd_log_frozen_wait, &wait); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 486 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 487 | } |
| 488 | |
| 489 | /** |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 490 | * freeze_go_xmote_bh - After promoting/demoting the freeze glock |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 491 | * @gl: the glock |
| 492 | * |
| 493 | */ |
| 494 | |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 495 | static int freeze_go_xmote_bh(struct gfs2_glock *gl, struct gfs2_holder *gh) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 496 | { |
| 497 | struct gfs2_sbd *sdp = gl->gl_sbd; |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 498 | struct gfs2_inode *ip = GFS2_I(sdp->sd_jdesc->jd_inode); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 499 | struct gfs2_glock *j_gl = ip->i_gl; |
Al Viro | 5516762 | 2006-10-13 21:47:13 -0400 | [diff] [blame] | 500 | struct gfs2_log_header_host head; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 501 | int error; |
| 502 | |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 503 | if (test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) { |
Steven Whitehouse | 1a14d3a | 2006-11-20 10:37:45 -0500 | [diff] [blame] | 504 | j_gl->gl_ops->go_inval(j_gl, DIO_METADATA); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 505 | |
| 506 | error = gfs2_find_jhead(sdp->sd_jdesc, &head); |
| 507 | if (error) |
| 508 | gfs2_consist(sdp); |
| 509 | if (!(head.lh_flags & GFS2_LOG_HEAD_UNMOUNT)) |
| 510 | gfs2_consist(sdp); |
| 511 | |
| 512 | /* Initialize some head of the log stuff */ |
| 513 | if (!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)) { |
| 514 | sdp->sd_log_sequence = head.lh_sequence + 1; |
| 515 | gfs2_log_pointers_init(sdp, head.lh_blkno); |
| 516 | } |
| 517 | } |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 518 | return 0; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 519 | } |
| 520 | |
| 521 | /** |
Steven Whitehouse | 97cc102 | 2008-11-20 13:39:47 +0000 | [diff] [blame] | 522 | * trans_go_demote_ok |
| 523 | * @gl: the glock |
| 524 | * |
| 525 | * Always returns 0 |
| 526 | */ |
| 527 | |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 528 | static int freeze_go_demote_ok(const struct gfs2_glock *gl) |
Steven Whitehouse | 97cc102 | 2008-11-20 13:39:47 +0000 | [diff] [blame] | 529 | { |
| 530 | return 0; |
| 531 | } |
| 532 | |
Benjamin Marzinski | b94a170 | 2009-07-23 18:52:34 -0500 | [diff] [blame] | 533 | /** |
| 534 | * iopen_go_callback - schedule the dcache entry for the inode to be deleted |
| 535 | * @gl: the glock |
| 536 | * |
| 537 | * gl_spin lock is held while calling this |
| 538 | */ |
Steven Whitehouse | 81ffbf6 | 2013-04-10 10:26:55 +0100 | [diff] [blame] | 539 | static void iopen_go_callback(struct gfs2_glock *gl, bool remote) |
Benjamin Marzinski | b94a170 | 2009-07-23 18:52:34 -0500 | [diff] [blame] | 540 | { |
| 541 | struct gfs2_inode *ip = (struct gfs2_inode *)gl->gl_object; |
Steven Whitehouse | 001e8e8 | 2011-03-30 14:17:51 +0100 | [diff] [blame] | 542 | struct gfs2_sbd *sdp = gl->gl_sbd; |
| 543 | |
Steven Whitehouse | 81ffbf6 | 2013-04-10 10:26:55 +0100 | [diff] [blame] | 544 | if (!remote || (sdp->sd_vfs->s_flags & MS_RDONLY)) |
Steven Whitehouse | 001e8e8 | 2011-03-30 14:17:51 +0100 | [diff] [blame] | 545 | return; |
Benjamin Marzinski | b94a170 | 2009-07-23 18:52:34 -0500 | [diff] [blame] | 546 | |
| 547 | if (gl->gl_demote_state == LM_ST_UNLOCKED && |
Steven Whitehouse | 009d851 | 2009-12-08 12:12:13 +0000 | [diff] [blame] | 548 | gl->gl_state == LM_ST_SHARED && ip) { |
Steven Whitehouse | e66cf16 | 2013-10-15 15:18:08 +0100 | [diff] [blame] | 549 | gl->gl_lockref.count++; |
Benjamin Marzinski | b94a170 | 2009-07-23 18:52:34 -0500 | [diff] [blame] | 550 | if (queue_work(gfs2_delete_workqueue, &gl->gl_delete) == 0) |
Steven Whitehouse | e66cf16 | 2013-10-15 15:18:08 +0100 | [diff] [blame] | 551 | gl->gl_lockref.count--; |
Benjamin Marzinski | b94a170 | 2009-07-23 18:52:34 -0500 | [diff] [blame] | 552 | } |
| 553 | } |
| 554 | |
Steven Whitehouse | 8fb4b53 | 2006-08-30 09:30:00 -0400 | [diff] [blame] | 555 | const struct gfs2_glock_operations gfs2_meta_glops = { |
Steven Whitehouse | ea67eed | 2006-09-05 10:53:09 -0400 | [diff] [blame] | 556 | .go_type = LM_TYPE_META, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 557 | }; |
| 558 | |
Steven Whitehouse | 8fb4b53 | 2006-08-30 09:30:00 -0400 | [diff] [blame] | 559 | const struct gfs2_glock_operations gfs2_inode_glops = { |
Bob Peterson | 06dfc30 | 2012-10-24 14:41:05 -0400 | [diff] [blame] | 560 | .go_sync = inode_go_sync, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 561 | .go_inval = inode_go_inval, |
| 562 | .go_demote_ok = inode_go_demote_ok, |
| 563 | .go_lock = inode_go_lock, |
Steven Whitehouse | 6802e34 | 2008-05-21 17:03:22 +0100 | [diff] [blame] | 564 | .go_dump = inode_go_dump, |
Steven Whitehouse | ea67eed | 2006-09-05 10:53:09 -0400 | [diff] [blame] | 565 | .go_type = LM_TYPE_INODE, |
Steven Whitehouse | 009d851 | 2009-12-08 12:12:13 +0000 | [diff] [blame] | 566 | .go_flags = GLOF_ASPACE, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 567 | }; |
| 568 | |
Steven Whitehouse | 8fb4b53 | 2006-08-30 09:30:00 -0400 | [diff] [blame] | 569 | const struct gfs2_glock_operations gfs2_rgrp_glops = { |
Bob Peterson | 06dfc30 | 2012-10-24 14:41:05 -0400 | [diff] [blame] | 570 | .go_sync = rgrp_go_sync, |
Steven Whitehouse | 6bac243 | 2009-03-09 09:03:51 +0000 | [diff] [blame] | 571 | .go_inval = rgrp_go_inval, |
Bob Peterson | 7c9ca62 | 2011-08-31 09:53:19 +0100 | [diff] [blame] | 572 | .go_lock = gfs2_rgrp_go_lock, |
| 573 | .go_unlock = gfs2_rgrp_go_unlock, |
Steven Whitehouse | 0901097 | 2009-05-20 10:48:47 +0100 | [diff] [blame] | 574 | .go_dump = gfs2_rgrp_dump, |
Steven Whitehouse | ea67eed | 2006-09-05 10:53:09 -0400 | [diff] [blame] | 575 | .go_type = LM_TYPE_RGRP, |
Steven Whitehouse | 70d4ee9 | 2013-12-06 16:19:54 +0000 | [diff] [blame] | 576 | .go_flags = GLOF_LVB, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 577 | }; |
| 578 | |
Benjamin Marzinski | 2497255 | 2014-05-01 22:26:55 -0500 | [diff] [blame] | 579 | const struct gfs2_glock_operations gfs2_freeze_glops = { |
| 580 | .go_sync = freeze_go_sync, |
| 581 | .go_xmote_bh = freeze_go_xmote_bh, |
| 582 | .go_demote_ok = freeze_go_demote_ok, |
Steven Whitehouse | ea67eed | 2006-09-05 10:53:09 -0400 | [diff] [blame] | 583 | .go_type = LM_TYPE_NONDISK, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 584 | }; |
| 585 | |
Steven Whitehouse | 8fb4b53 | 2006-08-30 09:30:00 -0400 | [diff] [blame] | 586 | const struct gfs2_glock_operations gfs2_iopen_glops = { |
Steven Whitehouse | ea67eed | 2006-09-05 10:53:09 -0400 | [diff] [blame] | 587 | .go_type = LM_TYPE_IOPEN, |
Benjamin Marzinski | b94a170 | 2009-07-23 18:52:34 -0500 | [diff] [blame] | 588 | .go_callback = iopen_go_callback, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 589 | }; |
| 590 | |
Steven Whitehouse | 8fb4b53 | 2006-08-30 09:30:00 -0400 | [diff] [blame] | 591 | const struct gfs2_glock_operations gfs2_flock_glops = { |
Steven Whitehouse | ea67eed | 2006-09-05 10:53:09 -0400 | [diff] [blame] | 592 | .go_type = LM_TYPE_FLOCK, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 593 | }; |
| 594 | |
Steven Whitehouse | 8fb4b53 | 2006-08-30 09:30:00 -0400 | [diff] [blame] | 595 | const struct gfs2_glock_operations gfs2_nondisk_glops = { |
Steven Whitehouse | ea67eed | 2006-09-05 10:53:09 -0400 | [diff] [blame] | 596 | .go_type = LM_TYPE_NONDISK, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 597 | }; |
| 598 | |
Steven Whitehouse | 8fb4b53 | 2006-08-30 09:30:00 -0400 | [diff] [blame] | 599 | const struct gfs2_glock_operations gfs2_quota_glops = { |
Steven Whitehouse | ea67eed | 2006-09-05 10:53:09 -0400 | [diff] [blame] | 600 | .go_type = LM_TYPE_QUOTA, |
David Teigland | dba2d70 | 2012-11-14 13:46:53 -0500 | [diff] [blame] | 601 | .go_flags = GLOF_LVB, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 602 | }; |
| 603 | |
Steven Whitehouse | 8fb4b53 | 2006-08-30 09:30:00 -0400 | [diff] [blame] | 604 | const struct gfs2_glock_operations gfs2_journal_glops = { |
Steven Whitehouse | ea67eed | 2006-09-05 10:53:09 -0400 | [diff] [blame] | 605 | .go_type = LM_TYPE_JOURNAL, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 606 | }; |
| 607 | |
Steven Whitehouse | 64d576b | 2009-02-12 13:31:58 +0000 | [diff] [blame] | 608 | const struct gfs2_glock_operations *gfs2_glops_list[] = { |
| 609 | [LM_TYPE_META] = &gfs2_meta_glops, |
| 610 | [LM_TYPE_INODE] = &gfs2_inode_glops, |
| 611 | [LM_TYPE_RGRP] = &gfs2_rgrp_glops, |
Steven Whitehouse | 64d576b | 2009-02-12 13:31:58 +0000 | [diff] [blame] | 612 | [LM_TYPE_IOPEN] = &gfs2_iopen_glops, |
| 613 | [LM_TYPE_FLOCK] = &gfs2_flock_glops, |
| 614 | [LM_TYPE_NONDISK] = &gfs2_nondisk_glops, |
| 615 | [LM_TYPE_QUOTA] = &gfs2_quota_glops, |
| 616 | [LM_TYPE_JOURNAL] = &gfs2_journal_glops, |
| 617 | }; |
| 618 | |