aboutsummaryrefslogtreecommitdiffstats
path: root/fs/xfs/linux-2.6/xfs_file.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_file.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_file.c104
1 files changed, 4 insertions, 100 deletions
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 257a56b127c..ba8ad422a16 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -22,23 +22,15 @@
22#include "xfs_inum.h" 22#include "xfs_inum.h"
23#include "xfs_sb.h" 23#include "xfs_sb.h"
24#include "xfs_ag.h" 24#include "xfs_ag.h"
25#include "xfs_dir2.h"
26#include "xfs_trans.h" 25#include "xfs_trans.h"
27#include "xfs_dmapi.h"
28#include "xfs_mount.h" 26#include "xfs_mount.h"
29#include "xfs_bmap_btree.h" 27#include "xfs_bmap_btree.h"
30#include "xfs_alloc_btree.h"
31#include "xfs_ialloc_btree.h"
32#include "xfs_alloc.h" 28#include "xfs_alloc.h"
33#include "xfs_btree.h"
34#include "xfs_attr_sf.h"
35#include "xfs_dir2_sf.h"
36#include "xfs_dinode.h" 29#include "xfs_dinode.h"
37#include "xfs_inode.h" 30#include "xfs_inode.h"
38#include "xfs_inode_item.h" 31#include "xfs_inode_item.h"
39#include "xfs_bmap.h" 32#include "xfs_bmap.h"
40#include "xfs_error.h" 33#include "xfs_error.h"
41#include "xfs_rw.h"
42#include "xfs_vnodeops.h" 34#include "xfs_vnodeops.h"
43#include "xfs_da_btree.h" 35#include "xfs_da_btree.h"
44#include "xfs_ioctl.h" 36#include "xfs_ioctl.h"
@@ -108,7 +100,7 @@ xfs_file_fsync(
108 int error = 0; 100 int error = 0;
109 int log_flushed = 0; 101 int log_flushed = 0;
110 102
111 xfs_itrace_entry(ip); 103 trace_xfs_file_fsync(ip);
112 104
113 if (XFS_FORCED_SHUTDOWN(ip->i_mount)) 105 if (XFS_FORCED_SHUTDOWN(ip->i_mount))
114 return -XFS_ERROR(EIO); 106 return -XFS_ERROR(EIO);
@@ -166,8 +158,7 @@ xfs_file_fsync(
166 * transaction. So we play it safe and fire off the 158 * transaction. So we play it safe and fire off the
167 * transaction anyway. 159 * transaction anyway.
168 */ 160 */
169 xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); 161 xfs_trans_ijoin(tp, ip);
170 xfs_trans_ihold(tp, ip);
171 xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); 162 xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
172 xfs_trans_set_sync(tp); 163 xfs_trans_set_sync(tp);
173 error = _xfs_trans_commit(tp, 0, &log_flushed); 164 error = _xfs_trans_commit(tp, 0, &log_flushed);
@@ -275,20 +266,6 @@ xfs_file_aio_read(
275 mutex_lock(&inode->i_mutex); 266 mutex_lock(&inode->i_mutex);
276 xfs_ilock(ip, XFS_IOLOCK_SHARED); 267 xfs_ilock(ip, XFS_IOLOCK_SHARED);
277 268
278 if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) && !(ioflags & IO_INVIS)) {
279 int dmflags = FILP_DELAY_FLAG(file) | DM_SEM_FLAG_RD(ioflags);
280 int iolock = XFS_IOLOCK_SHARED;
281
282 ret = -XFS_SEND_DATA(mp, DM_EVENT_READ, ip, iocb->ki_pos, size,
283 dmflags, &iolock);
284 if (ret) {
285 xfs_iunlock(ip, XFS_IOLOCK_SHARED);
286 if (unlikely(ioflags & IO_ISDIRECT))
287 mutex_unlock(&inode->i_mutex);
288 return ret;
289 }
290 }
291
292 if (unlikely(ioflags & IO_ISDIRECT)) { 269 if (unlikely(ioflags & IO_ISDIRECT)) {
293 if (inode->i_mapping->nrpages) { 270 if (inode->i_mapping->nrpages) {
294 ret = -xfs_flushinval_pages(ip, 271 ret = -xfs_flushinval_pages(ip,
@@ -321,7 +298,6 @@ xfs_file_splice_read(
321 unsigned int flags) 298 unsigned int flags)
322{ 299{
323 struct xfs_inode *ip = XFS_I(infilp->f_mapping->host); 300 struct xfs_inode *ip = XFS_I(infilp->f_mapping->host);
324 struct xfs_mount *mp = ip->i_mount;
325 int ioflags = 0; 301 int ioflags = 0;
326 ssize_t ret; 302 ssize_t ret;
327 303
@@ -335,18 +311,6 @@ xfs_file_splice_read(
335 311
336 xfs_ilock(ip, XFS_IOLOCK_SHARED); 312 xfs_ilock(ip, XFS_IOLOCK_SHARED);
337 313
338 if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) && !(ioflags & IO_INVIS)) {
339 int iolock = XFS_IOLOCK_SHARED;
340 int error;
341
342 error = XFS_SEND_DATA(mp, DM_EVENT_READ, ip, *ppos, count,
343 FILP_DELAY_FLAG(infilp), &iolock);
344 if (error) {
345 xfs_iunlock(ip, XFS_IOLOCK_SHARED);
346 return -error;
347 }
348 }
349
350 trace_xfs_file_splice_read(ip, count, *ppos, ioflags); 314 trace_xfs_file_splice_read(ip, count, *ppos, ioflags);
351 315
352 ret = generic_file_splice_read(infilp, ppos, pipe, count, flags); 316 ret = generic_file_splice_read(infilp, ppos, pipe, count, flags);
@@ -367,7 +331,6 @@ xfs_file_splice_write(
367{ 331{
368 struct inode *inode = outfilp->f_mapping->host; 332 struct inode *inode = outfilp->f_mapping->host;
369 struct xfs_inode *ip = XFS_I(inode); 333 struct xfs_inode *ip = XFS_I(inode);
370 struct xfs_mount *mp = ip->i_mount;
371 xfs_fsize_t isize, new_size; 334 xfs_fsize_t isize, new_size;
372 int ioflags = 0; 335 int ioflags = 0;
373 ssize_t ret; 336 ssize_t ret;
@@ -382,18 +345,6 @@ xfs_file_splice_write(
382 345
383 xfs_ilock(ip, XFS_IOLOCK_EXCL); 346 xfs_ilock(ip, XFS_IOLOCK_EXCL);
384 347
385 if (DM_EVENT_ENABLED(ip, DM_EVENT_WRITE) && !(ioflags & IO_INVIS)) {
386 int iolock = XFS_IOLOCK_EXCL;
387 int error;
388
389 error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, ip, *ppos, count,
390 FILP_DELAY_FLAG(outfilp), &iolock);
391 if (error) {
392 xfs_iunlock(ip, XFS_IOLOCK_EXCL);
393 return -error;
394 }
395 }
396
397 new_size = *ppos + count; 348 new_size = *ppos + count;
398 349
399 xfs_ilock(ip, XFS_ILOCK_EXCL); 350 xfs_ilock(ip, XFS_ILOCK_EXCL);
@@ -463,7 +414,7 @@ xfs_zero_last_block(
463 last_fsb = XFS_B_TO_FSBT(mp, isize); 414 last_fsb = XFS_B_TO_FSBT(mp, isize);
464 nimaps = 1; 415 nimaps = 1;
465 error = xfs_bmapi(NULL, ip, last_fsb, 1, 0, NULL, 0, &imap, 416 error = xfs_bmapi(NULL, ip, last_fsb, 1, 0, NULL, 0, &imap,
466 &nimaps, NULL, NULL); 417 &nimaps, NULL);
467 if (error) { 418 if (error) {
468 return error; 419 return error;
469 } 420 }
@@ -558,7 +509,7 @@ xfs_zero_eof(
558 nimaps = 1; 509 nimaps = 1;
559 zero_count_fsb = end_zero_fsb - start_zero_fsb + 1; 510 zero_count_fsb = end_zero_fsb - start_zero_fsb + 1;
560 error = xfs_bmapi(NULL, ip, start_zero_fsb, zero_count_fsb, 511 error = xfs_bmapi(NULL, ip, start_zero_fsb, zero_count_fsb,
561 0, NULL, 0, &imap, &nimaps, NULL, NULL); 512 0, NULL, 0, &imap, &nimaps, NULL);
562 if (error) { 513 if (error) {
563 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL)); 514 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
564 return error; 515 return error;
@@ -627,7 +578,6 @@ xfs_file_aio_write(
627 int ioflags = 0; 578 int ioflags = 0;
628 xfs_fsize_t isize, new_size; 579 xfs_fsize_t isize, new_size;
629 int iolock; 580 int iolock;
630 int eventsent = 0;
631 size_t ocount = 0, count; 581 size_t ocount = 0, count;
632 int need_i_mutex; 582 int need_i_mutex;
633 583
@@ -673,33 +623,6 @@ start:
673 goto out_unlock_mutex; 623 goto out_unlock_mutex;
674 } 624 }
675 625
676 if ((DM_EVENT_ENABLED(ip, DM_EVENT_WRITE) &&
677 !(ioflags & IO_INVIS) && !eventsent)) {
678 int dmflags = FILP_DELAY_FLAG(file);
679
680 if (need_i_mutex)
681 dmflags |= DM_FLAGS_IMUX;
682
683 xfs_iunlock(ip, XFS_ILOCK_EXCL);
684 error = XFS_SEND_DATA(ip->i_mount, DM_EVENT_WRITE, ip,
685 pos, count, dmflags, &iolock);
686 if (error) {
687 goto out_unlock_internal;
688 }
689 xfs_ilock(ip, XFS_ILOCK_EXCL);
690 eventsent = 1;
691
692 /*
693 * The iolock was dropped and reacquired in XFS_SEND_DATA
694 * so we have to recheck the size when appending.
695 * We will only "goto start;" once, since having sent the
696 * event prevents another call to XFS_SEND_DATA, which is
697 * what allows the size to change in the first place.
698 */
699 if ((file->f_flags & O_APPEND) && pos != ip->i_size)
700 goto start;
701 }
702
703 if (ioflags & IO_ISDIRECT) { 626 if (ioflags & IO_ISDIRECT) {
704 xfs_buftarg_t *target = 627 xfs_buftarg_t *target =
705 XFS_IS_REALTIME_INODE(ip) ? 628 XFS_IS_REALTIME_INODE(ip) ?
@@ -830,22 +753,6 @@ write_retry:
830 xfs_iunlock(ip, XFS_ILOCK_EXCL); 753 xfs_iunlock(ip, XFS_ILOCK_EXCL);
831 } 754 }
832 755
833 if (ret == -ENOSPC &&
834 DM_EVENT_ENABLED(ip, DM_EVENT_NOSPACE) && !(ioflags & IO_INVIS)) {
835 xfs_iunlock(ip, iolock);
836 if (need_i_mutex)
837 mutex_unlock(&inode->i_mutex);
838 error = XFS_SEND_NAMESP(ip->i_mount, DM_EVENT_NOSPACE, ip,
839 DM_RIGHT_NULL, ip, DM_RIGHT_NULL, NULL, NULL,
840 0, 0, 0); /* Delay flag intentionally unused */
841 if (need_i_mutex)
842 mutex_lock(&inode->i_mutex);
843 xfs_ilock(ip, iolock);
844 if (error)
845 goto out_unlock_internal;
846 goto start;
847 }
848
849 error = -ret; 756 error = -ret;
850 if (ret <= 0) 757 if (ret <= 0)
851 goto out_unlock_internal; 758 goto out_unlock_internal;
@@ -1014,9 +921,6 @@ const struct file_operations xfs_file_operations = {
1014 .open = xfs_file_open, 921 .open = xfs_file_open,
1015 .release = xfs_file_release, 922 .release = xfs_file_release,
1016 .fsync = xfs_file_fsync, 923 .fsync = xfs_file_fsync,
1017#ifdef HAVE_FOP_OPEN_EXEC
1018 .open_exec = xfs_file_open_exec,
1019#endif
1020}; 924};
1021 925
1022const struct file_operations xfs_dir_file_operations = { 926const struct file_operations xfs_dir_file_operations = {