blob: bf13a5a7e2f4ffd90d1ae65402a240ac81e80349 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Nathan Scott7b718762005-11-02 14:58:39 +11002 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 *
Nathan Scott7b718762005-11-02 14:58:39 +11005 * 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 Torvalds1da177e2005-04-16 15:20:36 -07007 * published by the Free Software Foundation.
8 *
Nathan Scott7b718762005-11-02 14:58:39 +11009 * 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 Torvalds1da177e2005-04-16 15:20:36 -070013 *
Nathan Scott7b718762005-11-02 14:58:39 +110014 * 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 Torvalds1da177e2005-04-16 15:20:36 -070017 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include "xfs.h"
Nathan Scotta844f452005-11-02 14:38:42 +110019#include "xfs_fs.h"
Dave Chinnera4fbe6a2013-10-23 10:51:50 +110020#include "xfs_format.h"
Dave Chinner239880e2013-10-23 10:50:10 +110021#include "xfs_log_format.h"
22#include "xfs_trans_resv.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#include "xfs_mount.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070024#include "xfs_inode.h"
Dave Chinner239880e2013-10-23 10:50:10 +110025#include "xfs_trans.h"
Nathan Scotta844f452005-11-02 14:38:42 +110026#include "xfs_inode_item.h"
David Chinnerdb7a19f2008-04-10 12:22:24 +100027#include "xfs_error.h"
Christoph Hellwig0b1b2132009-12-14 23:14:59 +000028#include "xfs_trace.h"
Dave Chinner239880e2013-10-23 10:50:10 +110029#include "xfs_trans_priv.h"
Christoph Hellwig12343512013-12-13 11:00:43 +110030#include "xfs_log.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070031
32
33kmem_zone_t *xfs_ili_zone; /* inode log item zone */
34
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100035static inline struct xfs_inode_log_item *INODE_ITEM(struct xfs_log_item *lip)
36{
37 return container_of(lip, struct xfs_inode_log_item, ili_item);
38}
39
Christoph Hellwigce9641d2013-12-13 11:00:43 +110040STATIC void
41xfs_inode_item_data_fork_size(
42 struct xfs_inode_log_item *iip,
43 int *nvecs,
44 int *nbytes)
45{
46 struct xfs_inode *ip = iip->ili_inode;
47
48 switch (ip->i_d.di_format) {
49 case XFS_DINODE_FMT_EXTENTS:
50 if ((iip->ili_fields & XFS_ILOG_DEXT) &&
51 ip->i_d.di_nextents > 0 &&
52 ip->i_df.if_bytes > 0) {
53 /* worst case, doesn't subtract delalloc extents */
54 *nbytes += XFS_IFORK_DSIZE(ip);
55 *nvecs += 1;
56 }
57 break;
58 case XFS_DINODE_FMT_BTREE:
59 if ((iip->ili_fields & XFS_ILOG_DBROOT) &&
60 ip->i_df.if_broot_bytes > 0) {
61 *nbytes += ip->i_df.if_broot_bytes;
62 *nvecs += 1;
63 }
64 break;
65 case XFS_DINODE_FMT_LOCAL:
66 if ((iip->ili_fields & XFS_ILOG_DDATA) &&
67 ip->i_df.if_bytes > 0) {
68 *nbytes += roundup(ip->i_df.if_bytes, 4);
69 *nvecs += 1;
70 }
71 break;
72
73 case XFS_DINODE_FMT_DEV:
74 case XFS_DINODE_FMT_UUID:
75 break;
76 default:
77 ASSERT(0);
78 break;
79 }
80}
81
82STATIC void
83xfs_inode_item_attr_fork_size(
84 struct xfs_inode_log_item *iip,
85 int *nvecs,
86 int *nbytes)
87{
88 struct xfs_inode *ip = iip->ili_inode;
89
90 switch (ip->i_d.di_aformat) {
91 case XFS_DINODE_FMT_EXTENTS:
92 if ((iip->ili_fields & XFS_ILOG_AEXT) &&
93 ip->i_d.di_anextents > 0 &&
94 ip->i_afp->if_bytes > 0) {
95 /* worst case, doesn't subtract unused space */
96 *nbytes += XFS_IFORK_ASIZE(ip);
97 *nvecs += 1;
98 }
99 break;
100 case XFS_DINODE_FMT_BTREE:
101 if ((iip->ili_fields & XFS_ILOG_ABROOT) &&
102 ip->i_afp->if_broot_bytes > 0) {
103 *nbytes += ip->i_afp->if_broot_bytes;
104 *nvecs += 1;
105 }
106 break;
107 case XFS_DINODE_FMT_LOCAL:
108 if ((iip->ili_fields & XFS_ILOG_ADATA) &&
109 ip->i_afp->if_bytes > 0) {
110 *nbytes += roundup(ip->i_afp->if_bytes, 4);
111 *nvecs += 1;
112 }
113 break;
114 default:
115 ASSERT(0);
116 break;
117 }
118}
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000119
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120/*
121 * This returns the number of iovecs needed to log the given inode item.
122 *
123 * We need one iovec for the inode log format structure, one for the
124 * inode core, and possibly one for the inode data/extents/b-tree root
125 * and one for the inode attribute data/extents/b-tree root.
126 */
Dave Chinner166d1362013-08-12 20:50:04 +1000127STATIC void
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128xfs_inode_item_size(
Dave Chinner166d1362013-08-12 20:50:04 +1000129 struct xfs_log_item *lip,
130 int *nvecs,
131 int *nbytes)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000133 struct xfs_inode_log_item *iip = INODE_ITEM(lip);
134 struct xfs_inode *ip = iip->ili_inode;
Dave Chinner166d1362013-08-12 20:50:04 +1000135
136 *nvecs += 2;
137 *nbytes += sizeof(struct xfs_inode_log_format) +
138 xfs_icdinode_size(ip->i_d.di_version);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139
Christoph Hellwigce9641d2013-12-13 11:00:43 +1100140 xfs_inode_item_data_fork_size(iip, nvecs, nbytes);
141 if (XFS_IFORK_Q(ip))
142 xfs_inode_item_attr_fork_size(iip, nvecs, nbytes);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143}
144
Christoph Hellwig12343512013-12-13 11:00:43 +1100145STATIC void
Christoph Hellwig3de559fb2013-12-13 11:00:43 +1100146xfs_inode_item_format_data_fork(
147 struct xfs_inode_log_item *iip,
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100148 struct xfs_inode_log_format *ilf,
149 struct xfs_log_vec *lv,
150 struct xfs_log_iovec **vecp)
Christoph Hellwig3de559fb2013-12-13 11:00:43 +1100151{
152 struct xfs_inode *ip = iip->ili_inode;
153 size_t data_bytes;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154
155 switch (ip->i_d.di_format) {
156 case XFS_DINODE_FMT_EXTENTS:
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000157 iip->ili_fields &=
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000158 ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT |
159 XFS_ILOG_DEV | XFS_ILOG_UUID);
160
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000161 if ((iip->ili_fields & XFS_ILOG_DEXT) &&
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000162 ip->i_d.di_nextents > 0 &&
163 ip->i_df.if_bytes > 0) {
Christoph Hellwigda776502013-12-13 11:34:04 +1100164 struct xfs_bmbt_rec *p;
165
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166 ASSERT(ip->i_df.if_u1.if_extents != NULL);
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000167 ASSERT(ip->i_df.if_bytes / sizeof(xfs_bmbt_rec_t) > 0);
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000168
Christoph Hellwigda776502013-12-13 11:34:04 +1100169 p = xlog_prepare_iovec(lv, vecp, XLOG_REG_TYPE_IEXT);
170 data_bytes = xfs_iextents_copy(ip, p, XFS_DATA_FORK);
171 xlog_finish_iovec(lv, *vecp, data_bytes);
172
173 ASSERT(data_bytes <= ip->i_df.if_bytes);
174
175 ilf->ilf_dsize = data_bytes;
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100176 ilf->ilf_size++;
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000177 } else {
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000178 iip->ili_fields &= ~XFS_ILOG_DEXT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179 }
180 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181 case XFS_DINODE_FMT_BTREE:
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000182 iip->ili_fields &=
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000183 ~(XFS_ILOG_DDATA | XFS_ILOG_DEXT |
184 XFS_ILOG_DEV | XFS_ILOG_UUID);
185
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000186 if ((iip->ili_fields & XFS_ILOG_DBROOT) &&
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000187 ip->i_df.if_broot_bytes > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188 ASSERT(ip->i_df.if_broot != NULL);
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100189 xlog_copy_iovec(lv, vecp, XLOG_REG_TYPE_IBROOT,
Christoph Hellwig12343512013-12-13 11:00:43 +1100190 ip->i_df.if_broot,
191 ip->i_df.if_broot_bytes);
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100192 ilf->ilf_dsize = ip->i_df.if_broot_bytes;
193 ilf->ilf_size++;
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000194 } else {
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000195 ASSERT(!(iip->ili_fields &
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000196 XFS_ILOG_DBROOT));
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000197 iip->ili_fields &= ~XFS_ILOG_DBROOT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198 }
199 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200 case XFS_DINODE_FMT_LOCAL:
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000201 iip->ili_fields &=
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000202 ~(XFS_ILOG_DEXT | XFS_ILOG_DBROOT |
203 XFS_ILOG_DEV | XFS_ILOG_UUID);
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000204 if ((iip->ili_fields & XFS_ILOG_DDATA) &&
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000205 ip->i_df.if_bytes > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206 /*
207 * Round i_bytes up to a word boundary.
208 * The underlying memory is guaranteed to
209 * to be there by xfs_idata_realloc().
210 */
211 data_bytes = roundup(ip->i_df.if_bytes, 4);
Christoph Hellwig12343512013-12-13 11:00:43 +1100212 ASSERT(ip->i_df.if_real_bytes == 0 ||
213 ip->i_df.if_real_bytes == data_bytes);
214 ASSERT(ip->i_df.if_u1.if_data != NULL);
215 ASSERT(ip->i_d.di_size > 0);
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100216 xlog_copy_iovec(lv, vecp, XLOG_REG_TYPE_ILOCAL,
Christoph Hellwig12343512013-12-13 11:00:43 +1100217 ip->i_df.if_u1.if_data, data_bytes);
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100218 ilf->ilf_dsize = (unsigned)data_bytes;
219 ilf->ilf_size++;
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000220 } else {
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000221 iip->ili_fields &= ~XFS_ILOG_DDATA;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222 }
223 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224 case XFS_DINODE_FMT_DEV:
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000225 iip->ili_fields &=
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000226 ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT |
227 XFS_ILOG_DEXT | XFS_ILOG_UUID);
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100228 if (iip->ili_fields & XFS_ILOG_DEV)
229 ilf->ilf_u.ilfu_rdev = ip->i_df.if_u2.if_rdev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231 case XFS_DINODE_FMT_UUID:
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000232 iip->ili_fields &=
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000233 ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT |
234 XFS_ILOG_DEXT | XFS_ILOG_DEV);
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100235 if (iip->ili_fields & XFS_ILOG_UUID)
236 ilf->ilf_u.ilfu_uuid = ip->i_df.if_u2.if_uuid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238 default:
239 ASSERT(0);
240 break;
241 }
Christoph Hellwig3de559fb2013-12-13 11:00:43 +1100242}
243
Christoph Hellwig12343512013-12-13 11:00:43 +1100244STATIC void
Christoph Hellwig3de559fb2013-12-13 11:00:43 +1100245xfs_inode_item_format_attr_fork(
246 struct xfs_inode_log_item *iip,
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100247 struct xfs_inode_log_format *ilf,
248 struct xfs_log_vec *lv,
249 struct xfs_log_iovec **vecp)
Christoph Hellwig3de559fb2013-12-13 11:00:43 +1100250{
251 struct xfs_inode *ip = iip->ili_inode;
252 size_t data_bytes;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253
254 switch (ip->i_d.di_aformat) {
255 case XFS_DINODE_FMT_EXTENTS:
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000256 iip->ili_fields &=
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000257 ~(XFS_ILOG_ADATA | XFS_ILOG_ABROOT);
258
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000259 if ((iip->ili_fields & XFS_ILOG_AEXT) &&
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000260 ip->i_d.di_anextents > 0 &&
261 ip->i_afp->if_bytes > 0) {
Christoph Hellwigda776502013-12-13 11:34:04 +1100262 struct xfs_bmbt_rec *p;
263
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000264 ASSERT(ip->i_afp->if_bytes / sizeof(xfs_bmbt_rec_t) ==
265 ip->i_d.di_anextents);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266 ASSERT(ip->i_afp->if_u1.if_extents != NULL);
Christoph Hellwigda776502013-12-13 11:34:04 +1100267
268 p = xlog_prepare_iovec(lv, vecp, XLOG_REG_TYPE_IATTR_EXT);
269 data_bytes = xfs_iextents_copy(ip, p, XFS_ATTR_FORK);
270 xlog_finish_iovec(lv, *vecp, data_bytes);
271
272 ilf->ilf_asize = data_bytes;
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100273 ilf->ilf_size++;
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000274 } else {
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000275 iip->ili_fields &= ~XFS_ILOG_AEXT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276 }
277 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278 case XFS_DINODE_FMT_BTREE:
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000279 iip->ili_fields &=
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000280 ~(XFS_ILOG_ADATA | XFS_ILOG_AEXT);
281
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000282 if ((iip->ili_fields & XFS_ILOG_ABROOT) &&
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000283 ip->i_afp->if_broot_bytes > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284 ASSERT(ip->i_afp->if_broot != NULL);
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000285
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100286 xlog_copy_iovec(lv, vecp, XLOG_REG_TYPE_IATTR_BROOT,
Christoph Hellwig12343512013-12-13 11:00:43 +1100287 ip->i_afp->if_broot,
288 ip->i_afp->if_broot_bytes);
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100289 ilf->ilf_asize = ip->i_afp->if_broot_bytes;
290 ilf->ilf_size++;
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000291 } else {
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000292 iip->ili_fields &= ~XFS_ILOG_ABROOT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293 }
294 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295 case XFS_DINODE_FMT_LOCAL:
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000296 iip->ili_fields &=
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000297 ~(XFS_ILOG_AEXT | XFS_ILOG_ABROOT);
298
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000299 if ((iip->ili_fields & XFS_ILOG_ADATA) &&
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000300 ip->i_afp->if_bytes > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301 /*
302 * Round i_bytes up to a word boundary.
303 * The underlying memory is guaranteed to
304 * to be there by xfs_idata_realloc().
305 */
306 data_bytes = roundup(ip->i_afp->if_bytes, 4);
Christoph Hellwig12343512013-12-13 11:00:43 +1100307 ASSERT(ip->i_afp->if_real_bytes == 0 ||
308 ip->i_afp->if_real_bytes == data_bytes);
309 ASSERT(ip->i_afp->if_u1.if_data != NULL);
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100310 xlog_copy_iovec(lv, vecp, XLOG_REG_TYPE_IATTR_LOCAL,
Christoph Hellwig12343512013-12-13 11:00:43 +1100311 ip->i_afp->if_u1.if_data,
312 data_bytes);
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100313 ilf->ilf_asize = (unsigned)data_bytes;
314 ilf->ilf_size++;
Christoph Hellwig339a5f52012-02-29 09:53:53 +0000315 } else {
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000316 iip->ili_fields &= ~XFS_ILOG_ADATA;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317 }
318 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319 default:
320 ASSERT(0);
321 break;
322 }
Christoph Hellwig3de559fb2013-12-13 11:00:43 +1100323}
324
325/*
326 * This is called to fill in the vector of log iovecs for the given inode
327 * log item. It fills the first item with an inode log format structure,
328 * the second with the on-disk inode structure, and a possible third and/or
329 * fourth with the inode data/extents/b-tree root and inode attributes
330 * data/extents/b-tree root.
331 */
332STATIC void
333xfs_inode_item_format(
334 struct xfs_log_item *lip,
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100335 struct xfs_log_vec *lv)
Christoph Hellwig3de559fb2013-12-13 11:00:43 +1100336{
337 struct xfs_inode_log_item *iip = INODE_ITEM(lip);
338 struct xfs_inode *ip = iip->ili_inode;
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100339 struct xfs_inode_log_format *ilf;
340 struct xfs_log_iovec *vecp = NULL;
Christoph Hellwig3de559fb2013-12-13 11:00:43 +1100341
Dave Chinner263997a2014-05-20 07:46:40 +1000342 ASSERT(ip->i_d.di_version > 1);
343
Christoph Hellwig2f251292013-12-13 11:34:05 +1100344 ilf = xlog_prepare_iovec(lv, &vecp, XLOG_REG_TYPE_IFORMAT);
345 ilf->ilf_type = XFS_LI_INODE;
346 ilf->ilf_ino = ip->i_ino;
347 ilf->ilf_blkno = ip->i_imap.im_blkno;
348 ilf->ilf_len = ip->i_imap.im_len;
349 ilf->ilf_boffset = ip->i_imap.im_boffset;
350 ilf->ilf_fields = XFS_ILOG_CORE;
351 ilf->ilf_size = 2; /* format + core */
352 xlog_finish_iovec(lv, vecp, sizeof(struct xfs_inode_log_format));
Christoph Hellwig3de559fb2013-12-13 11:00:43 +1100353
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100354 xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_ICORE,
355 &ip->i_d,
356 xfs_icdinode_size(ip->i_d.di_version));
Christoph Hellwig3de559fb2013-12-13 11:00:43 +1100357
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100358 xfs_inode_item_format_data_fork(iip, ilf, lv, &vecp);
Christoph Hellwig3de559fb2013-12-13 11:00:43 +1100359 if (XFS_IFORK_Q(ip)) {
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100360 xfs_inode_item_format_attr_fork(iip, ilf, lv, &vecp);
Christoph Hellwig3de559fb2013-12-13 11:00:43 +1100361 } else {
362 iip->ili_fields &=
363 ~(XFS_ILOG_ADATA | XFS_ILOG_ABROOT | XFS_ILOG_AEXT);
364 }
365
Christoph Hellwig2f251292013-12-13 11:34:05 +1100366 /* update the format with the exact fields we actually logged */
367 ilf->ilf_fields |= (iip->ili_fields & ~XFS_ILOG_TIMESTAMP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368}
369
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370/*
371 * This is called to pin the inode associated with the inode log
Christoph Hellwiga14a5ab2010-02-18 12:43:22 +0000372 * item in memory so it cannot be written out.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373 */
374STATIC void
375xfs_inode_item_pin(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000376 struct xfs_log_item *lip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000378 struct xfs_inode *ip = INODE_ITEM(lip)->ili_inode;
Christoph Hellwiga14a5ab2010-02-18 12:43:22 +0000379
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000380 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
381
382 trace_xfs_inode_pin(ip, _RET_IP_);
383 atomic_inc(&ip->i_pincount);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384}
385
386
387/*
388 * This is called to unpin the inode associated with the inode log
389 * item which was previously pinned with a call to xfs_inode_item_pin().
Christoph Hellwiga14a5ab2010-02-18 12:43:22 +0000390 *
391 * Also wake up anyone in xfs_iunpin_wait() if the count goes to 0.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393STATIC void
394xfs_inode_item_unpin(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000395 struct xfs_log_item *lip,
Christoph Hellwig9412e312010-06-23 18:11:15 +1000396 int remove)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000398 struct xfs_inode *ip = INODE_ITEM(lip)->ili_inode;
Christoph Hellwiga14a5ab2010-02-18 12:43:22 +0000399
Dave Chinner4aaf15d2010-03-08 11:24:07 +1100400 trace_xfs_inode_unpin(ip, _RET_IP_);
Christoph Hellwiga14a5ab2010-02-18 12:43:22 +0000401 ASSERT(atomic_read(&ip->i_pincount) > 0);
402 if (atomic_dec_and_test(&ip->i_pincount))
Christoph Hellwigf392e632011-12-18 20:00:10 +0000403 wake_up_bit(&ip->i_flags, __XFS_IPINNED_BIT);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404}
405
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406STATIC uint
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000407xfs_inode_item_push(
408 struct xfs_log_item *lip,
409 struct list_head *buffer_list)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000411 struct xfs_inode_log_item *iip = INODE_ITEM(lip);
412 struct xfs_inode *ip = iip->ili_inode;
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000413 struct xfs_buf *bp = NULL;
414 uint rval = XFS_ITEM_SUCCESS;
415 int error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000417 if (xfs_ipincount(ip) > 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418 return XFS_ITEM_PINNED;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000420 if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421 return XFS_ITEM_LOCKED;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422
Christoph Hellwig4c468192012-04-23 15:58:36 +1000423 /*
424 * Re-check the pincount now that we stabilized the value by
425 * taking the ilock.
426 */
427 if (xfs_ipincount(ip) > 0) {
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000428 rval = XFS_ITEM_PINNED;
429 goto out_unlock;
Christoph Hellwig4c468192012-04-23 15:58:36 +1000430 }
431
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000432 /*
Brian Foster9a3a5da2012-06-11 10:39:43 -0400433 * Stale inode items should force out the iclog.
434 */
435 if (ip->i_flags & XFS_ISTALE) {
436 rval = XFS_ITEM_PINNED;
437 goto out_unlock;
438 }
439
440 /*
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000441 * Someone else is already flushing the inode. Nothing we can do
442 * here but wait for the flush to finish and remove the item from
443 * the AIL.
444 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445 if (!xfs_iflock_nowait(ip)) {
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000446 rval = XFS_ITEM_FLUSHING;
447 goto out_unlock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448 }
449
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000450 ASSERT(iip->ili_fields != 0 || XFS_FORCED_SHUTDOWN(ip->i_mount));
451 ASSERT(iip->ili_logged == 0 || XFS_FORCED_SHUTDOWN(ip->i_mount));
452
453 spin_unlock(&lip->li_ailp->xa_lock);
454
455 error = xfs_iflush(ip, &bp);
456 if (!error) {
457 if (!xfs_buf_delwri_queue(bp, buffer_list))
458 rval = XFS_ITEM_FLUSHING;
459 xfs_buf_relse(bp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 }
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000461
462 spin_lock(&lip->li_ailp->xa_lock);
463out_unlock:
464 xfs_iunlock(ip, XFS_ILOCK_SHARED);
465 return rval;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700466}
467
468/*
469 * Unlock the inode associated with the inode log item.
470 * Clear the fields of the inode and inode log item that
471 * are specific to the current transaction. If the
472 * hold flags is set, do not unlock the inode.
473 */
474STATIC void
475xfs_inode_item_unlock(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000476 struct xfs_log_item *lip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000478 struct xfs_inode_log_item *iip = INODE_ITEM(lip);
479 struct xfs_inode *ip = iip->ili_inode;
Christoph Hellwig898621d2010-06-24 11:36:58 +1000480 unsigned short lock_flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481
Christoph Hellwigf3ca87382011-07-08 14:34:47 +0200482 ASSERT(ip->i_itemp != NULL);
483 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484
Christoph Hellwig898621d2010-06-24 11:36:58 +1000485 lock_flags = iip->ili_lock_flags;
486 iip->ili_lock_flags = 0;
Christoph Hellwigddc34152011-09-19 15:00:54 +0000487 if (lock_flags)
Christoph Hellwigf3ca87382011-07-08 14:34:47 +0200488 xfs_iunlock(ip, lock_flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489}
490
491/*
Dave Chinnerde25c182010-11-30 15:15:46 +1100492 * This is called to find out where the oldest active copy of the inode log
493 * item in the on disk log resides now that the last log write of it completed
494 * at the given lsn. Since we always re-log all dirty data in an inode, the
495 * latest copy in the on disk log is the only one that matters. Therefore,
496 * simply return the given lsn.
497 *
498 * If the inode has been marked stale because the cluster is being freed, we
499 * don't want to (re-)insert this inode into the AIL. There is a race condition
500 * where the cluster buffer may be unpinned before the inode is inserted into
501 * the AIL during transaction committed processing. If the buffer is unpinned
502 * before the inode item has been committed and inserted, then it is possible
Dave Chinner1316d4d2011-07-04 05:27:36 +0000503 * for the buffer to be written and IO completes before the inode is inserted
Dave Chinnerde25c182010-11-30 15:15:46 +1100504 * into the AIL. In that case, we'd be inserting a clean, stale inode into the
505 * AIL which will never get removed. It will, however, get reclaimed which
506 * triggers an assert in xfs_inode_free() complaining about freein an inode
507 * still in the AIL.
508 *
Dave Chinner1316d4d2011-07-04 05:27:36 +0000509 * To avoid this, just unpin the inode directly and return a LSN of -1 so the
510 * transaction committed code knows that it does not need to do any further
511 * processing on the item.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700512 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513STATIC xfs_lsn_t
514xfs_inode_item_committed(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000515 struct xfs_log_item *lip,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516 xfs_lsn_t lsn)
517{
Dave Chinnerde25c182010-11-30 15:15:46 +1100518 struct xfs_inode_log_item *iip = INODE_ITEM(lip);
519 struct xfs_inode *ip = iip->ili_inode;
520
Dave Chinner1316d4d2011-07-04 05:27:36 +0000521 if (xfs_iflags_test(ip, XFS_ISTALE)) {
522 xfs_inode_item_unpin(lip, 0);
523 return -1;
524 }
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000525 return lsn;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700526}
527
528/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529 * XXX rcc - this one really has to do something. Probably needs
530 * to stamp in a new field in the incore inode.
531 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700532STATIC void
533xfs_inode_item_committing(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000534 struct xfs_log_item *lip,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535 xfs_lsn_t lsn)
536{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000537 INODE_ITEM(lip)->ili_last_lsn = lsn;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700538}
539
540/*
541 * This is the ops vector shared by all buf log items.
542 */
Christoph Hellwig272e42b2011-10-28 09:54:24 +0000543static const struct xfs_item_ops xfs_inode_item_ops = {
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000544 .iop_size = xfs_inode_item_size,
545 .iop_format = xfs_inode_item_format,
546 .iop_pin = xfs_inode_item_pin,
547 .iop_unpin = xfs_inode_item_unpin,
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000548 .iop_unlock = xfs_inode_item_unlock,
549 .iop_committed = xfs_inode_item_committed,
550 .iop_push = xfs_inode_item_push,
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000551 .iop_committing = xfs_inode_item_committing
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552};
553
554
555/*
556 * Initialize the inode log item for a newly allocated (in-core) inode.
557 */
558void
559xfs_inode_item_init(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000560 struct xfs_inode *ip,
561 struct xfs_mount *mp)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700562{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000563 struct xfs_inode_log_item *iip;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564
565 ASSERT(ip->i_itemp == NULL);
566 iip = ip->i_itemp = kmem_zone_zalloc(xfs_ili_zone, KM_SLEEP);
567
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568 iip->ili_inode = ip;
Dave Chinner43f5efc2010-03-23 10:10:00 +1100569 xfs_log_item_init(mp, &iip->ili_item, XFS_LI_INODE,
570 &xfs_inode_item_ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700571}
572
573/*
574 * Free the inode log item and any memory hanging off of it.
575 */
576void
577xfs_inode_item_destroy(
578 xfs_inode_t *ip)
579{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580 kmem_zone_free(xfs_ili_zone, ip->i_itemp);
581}
582
583
584/*
585 * This is the inode flushing I/O completion routine. It is called
586 * from interrupt level when the buffer containing the inode is
587 * flushed to disk. It is responsible for removing the inode item
588 * from the AIL if it has not been re-logged, and unlocking the inode's
589 * flush lock.
Dave Chinner30136832010-12-20 12:03:17 +1100590 *
591 * To reduce AIL lock traffic as much as possible, we scan the buffer log item
592 * list for other inodes that will run this function. We remove them from the
593 * buffer list so we can process all the inode IO completions in one AIL lock
594 * traversal.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596void
597xfs_iflush_done(
Christoph Hellwigca30b2a2010-06-23 18:11:15 +1000598 struct xfs_buf *bp,
599 struct xfs_log_item *lip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600{
Dave Chinner30136832010-12-20 12:03:17 +1100601 struct xfs_inode_log_item *iip;
602 struct xfs_log_item *blip;
603 struct xfs_log_item *next;
604 struct xfs_log_item *prev;
Christoph Hellwigca30b2a2010-06-23 18:11:15 +1000605 struct xfs_ail *ailp = lip->li_ailp;
Dave Chinner30136832010-12-20 12:03:17 +1100606 int need_ail = 0;
607
608 /*
609 * Scan the buffer IO completions for other inodes being completed and
610 * attach them to the current inode log item.
611 */
Christoph Hellwigadadbee2011-07-13 13:43:49 +0200612 blip = bp->b_fspriv;
Dave Chinner30136832010-12-20 12:03:17 +1100613 prev = NULL;
614 while (blip != NULL) {
Mark Tinguely52177932014-10-03 09:09:50 +1000615 if (blip->li_cb != xfs_iflush_done) {
Dave Chinner30136832010-12-20 12:03:17 +1100616 prev = blip;
617 blip = blip->li_bio_list;
618 continue;
619 }
620
621 /* remove from list */
622 next = blip->li_bio_list;
623 if (!prev) {
Christoph Hellwigadadbee2011-07-13 13:43:49 +0200624 bp->b_fspriv = next;
Dave Chinner30136832010-12-20 12:03:17 +1100625 } else {
626 prev->li_bio_list = next;
627 }
628
629 /* add to current list */
630 blip->li_bio_list = lip->li_bio_list;
631 lip->li_bio_list = blip;
632
633 /*
634 * while we have the item, do the unlocked check for needing
635 * the AIL lock.
636 */
637 iip = INODE_ITEM(blip);
638 if (iip->ili_logged && blip->li_lsn == iip->ili_flush_lsn)
639 need_ail++;
640
641 blip = next;
642 }
643
644 /* make sure we capture the state of the initial inode. */
645 iip = INODE_ITEM(lip);
646 if (iip->ili_logged && lip->li_lsn == iip->ili_flush_lsn)
647 need_ail++;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648
649 /*
650 * We only want to pull the item from the AIL if it is
651 * actually there and its location in the log has not
652 * changed since we started the flush. Thus, we only bother
653 * if the ili_logged flag is set and the inode's lsn has not
654 * changed. First we check the lsn outside
655 * the lock since it's cheaper, and then we recheck while
656 * holding the lock before removing the inode from the AIL.
657 */
Dave Chinner30136832010-12-20 12:03:17 +1100658 if (need_ail) {
659 struct xfs_log_item *log_items[need_ail];
660 int i = 0;
David Chinner783a2f62008-10-30 17:39:58 +1100661 spin_lock(&ailp->xa_lock);
Dave Chinner30136832010-12-20 12:03:17 +1100662 for (blip = lip; blip; blip = blip->li_bio_list) {
663 iip = INODE_ITEM(blip);
664 if (iip->ili_logged &&
665 blip->li_lsn == iip->ili_flush_lsn) {
666 log_items[i++] = blip;
667 }
668 ASSERT(i <= need_ail);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669 }
Dave Chinner30136832010-12-20 12:03:17 +1100670 /* xfs_trans_ail_delete_bulk() drops the AIL lock. */
Dave Chinner04913fd2012-04-23 15:58:41 +1000671 xfs_trans_ail_delete_bulk(ailp, log_items, i,
672 SHUTDOWN_CORRUPT_INCORE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673 }
674
Linus Torvalds1da177e2005-04-16 15:20:36 -0700675
676 /*
Dave Chinner30136832010-12-20 12:03:17 +1100677 * clean up and unlock the flush lock now we are done. We can clear the
678 * ili_last_fields bits now that we know that the data corresponding to
679 * them is safely on disk.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680 */
Dave Chinner30136832010-12-20 12:03:17 +1100681 for (blip = lip; blip; blip = next) {
682 next = blip->li_bio_list;
683 blip->li_bio_list = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684
Dave Chinner30136832010-12-20 12:03:17 +1100685 iip = INODE_ITEM(blip);
686 iip->ili_logged = 0;
687 iip->ili_last_fields = 0;
688 xfs_ifunlock(iip->ili_inode);
689 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700690}
691
692/*
Dave Chinner04913fd2012-04-23 15:58:41 +1000693 * This is the inode flushing abort routine. It is called from xfs_iflush when
694 * the filesystem is shutting down to clean up the inode state. It is
695 * responsible for removing the inode item from the AIL if it has not been
696 * re-logged, and unlocking the inode's flush lock.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697 */
698void
699xfs_iflush_abort(
Dave Chinner04913fd2012-04-23 15:58:41 +1000700 xfs_inode_t *ip,
701 bool stale)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700702{
David Chinner783a2f62008-10-30 17:39:58 +1100703 xfs_inode_log_item_t *iip = ip->i_itemp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705 if (iip) {
David Chinner783a2f62008-10-30 17:39:58 +1100706 struct xfs_ail *ailp = iip->ili_item.li_ailp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700707 if (iip->ili_item.li_flags & XFS_LI_IN_AIL) {
David Chinner783a2f62008-10-30 17:39:58 +1100708 spin_lock(&ailp->xa_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700709 if (iip->ili_item.li_flags & XFS_LI_IN_AIL) {
David Chinner783a2f62008-10-30 17:39:58 +1100710 /* xfs_trans_ail_delete() drops the AIL lock. */
Dave Chinner04913fd2012-04-23 15:58:41 +1000711 xfs_trans_ail_delete(ailp, &iip->ili_item,
712 stale ?
713 SHUTDOWN_LOG_IO_ERROR :
714 SHUTDOWN_CORRUPT_INCORE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715 } else
David Chinner783a2f62008-10-30 17:39:58 +1100716 spin_unlock(&ailp->xa_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717 }
718 iip->ili_logged = 0;
719 /*
720 * Clear the ili_last_fields bits now that we know that the
721 * data corresponding to them is safely on disk.
722 */
723 iip->ili_last_fields = 0;
724 /*
725 * Clear the inode logging fields so no more flushes are
726 * attempted.
727 */
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000728 iip->ili_fields = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729 }
730 /*
731 * Release the inode's flush lock since we're done with it.
732 */
733 xfs_ifunlock(ip);
734}
735
736void
737xfs_istale_done(
Christoph Hellwigca30b2a2010-06-23 18:11:15 +1000738 struct xfs_buf *bp,
739 struct xfs_log_item *lip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740{
Dave Chinner04913fd2012-04-23 15:58:41 +1000741 xfs_iflush_abort(INODE_ITEM(lip)->ili_inode, true);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700742}
Tim Shimmin6d192a92006-06-09 14:55:38 +1000743
744/*
745 * convert an xfs_inode_log_format struct from either 32 or 64 bit versions
746 * (which can have different field alignments) to the native version
747 */
748int
749xfs_inode_item_format_convert(
750 xfs_log_iovec_t *buf,
751 xfs_inode_log_format_t *in_f)
752{
753 if (buf->i_len == sizeof(xfs_inode_log_format_32_t)) {
Christoph Hellwig4e0d5f92010-06-23 18:11:15 +1000754 xfs_inode_log_format_32_t *in_f32 = buf->i_addr;
Tim Shimmin6d192a92006-06-09 14:55:38 +1000755
Tim Shimmin6d192a92006-06-09 14:55:38 +1000756 in_f->ilf_type = in_f32->ilf_type;
757 in_f->ilf_size = in_f32->ilf_size;
758 in_f->ilf_fields = in_f32->ilf_fields;
759 in_f->ilf_asize = in_f32->ilf_asize;
760 in_f->ilf_dsize = in_f32->ilf_dsize;
761 in_f->ilf_ino = in_f32->ilf_ino;
762 /* copy biggest field of ilf_u */
763 memcpy(in_f->ilf_u.ilfu_uuid.__u_bits,
764 in_f32->ilf_u.ilfu_uuid.__u_bits,
765 sizeof(uuid_t));
766 in_f->ilf_blkno = in_f32->ilf_blkno;
767 in_f->ilf_len = in_f32->ilf_len;
768 in_f->ilf_boffset = in_f32->ilf_boffset;
769 return 0;
770 } else if (buf->i_len == sizeof(xfs_inode_log_format_64_t)){
Christoph Hellwig4e0d5f92010-06-23 18:11:15 +1000771 xfs_inode_log_format_64_t *in_f64 = buf->i_addr;
Tim Shimmin6d192a92006-06-09 14:55:38 +1000772
Tim Shimmin6d192a92006-06-09 14:55:38 +1000773 in_f->ilf_type = in_f64->ilf_type;
774 in_f->ilf_size = in_f64->ilf_size;
775 in_f->ilf_fields = in_f64->ilf_fields;
776 in_f->ilf_asize = in_f64->ilf_asize;
777 in_f->ilf_dsize = in_f64->ilf_dsize;
778 in_f->ilf_ino = in_f64->ilf_ino;
779 /* copy biggest field of ilf_u */
780 memcpy(in_f->ilf_u.ilfu_uuid.__u_bits,
781 in_f64->ilf_u.ilfu_uuid.__u_bits,
782 sizeof(uuid_t));
783 in_f->ilf_blkno = in_f64->ilf_blkno;
784 in_f->ilf_len = in_f64->ilf_len;
785 in_f->ilf_boffset = in_f64->ilf_boffset;
786 return 0;
787 }
Dave Chinner24513372014-06-25 14:58:08 +1000788 return -EFSCORRUPTED;
Tim Shimmin6d192a92006-06-09 14:55:38 +1000789}