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path: root/fs/xfs/linux-2.6/xfs_lrw.c
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Diffstat (limited to 'fs/xfs/linux-2.6/xfs_lrw.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_lrw.c123
1 files changed, 20 insertions, 103 deletions
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index 67efe3308980..5d9cfd91ad08 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -23,7 +23,6 @@
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir.h"
#include "xfs_dir2.h"
#include "xfs_alloc.h"
#include "xfs_dmapi.h"
@@ -32,7 +31,6 @@
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir_sf.h"
#include "xfs_dir2_sf.h"
#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
@@ -206,7 +204,7 @@ xfs_read(
xfs_fsize_t n;
xfs_inode_t *ip;
xfs_mount_t *mp;
- vnode_t *vp;
+ bhv_vnode_t *vp;
unsigned long seg;
ip = XFS_BHVTOI(bdp);
@@ -258,7 +256,7 @@ xfs_read(
if (DM_EVENT_ENABLED(vp->v_vfsp, ip, DM_EVENT_READ) &&
!(ioflags & IO_INVIS)) {
- vrwlock_t locktype = VRWLOCK_READ;
+ bhv_vrwlock_t locktype = VRWLOCK_READ;
int dmflags = FILP_DELAY_FLAG(file) | DM_SEM_FLAG_RD(ioflags);
ret = -XFS_SEND_DATA(mp, DM_EVENT_READ,
@@ -271,7 +269,7 @@ xfs_read(
}
if (unlikely((ioflags & IO_ISDIRECT) && VN_CACHED(vp)))
- VOP_FLUSHINVAL_PAGES(vp, ctooff(offtoct(*offset)),
+ bhv_vop_flushinval_pages(vp, ctooff(offtoct(*offset)),
-1, FI_REMAPF_LOCKED);
xfs_rw_enter_trace(XFS_READ_ENTER, &ip->i_iocore,
@@ -313,7 +311,7 @@ xfs_sendfile(
if (DM_EVENT_ENABLED(BHV_TO_VNODE(bdp)->v_vfsp, ip, DM_EVENT_READ) &&
(!(ioflags & IO_INVIS))) {
- vrwlock_t locktype = VRWLOCK_READ;
+ bhv_vrwlock_t locktype = VRWLOCK_READ;
int error;
error = XFS_SEND_DATA(mp, DM_EVENT_READ, BHV_TO_VNODE(bdp),
@@ -357,7 +355,7 @@ xfs_splice_read(
if (DM_EVENT_ENABLED(BHV_TO_VNODE(bdp)->v_vfsp, ip, DM_EVENT_READ) &&
(!(ioflags & IO_INVIS))) {
- vrwlock_t locktype = VRWLOCK_READ;
+ bhv_vrwlock_t locktype = VRWLOCK_READ;
int error;
error = XFS_SEND_DATA(mp, DM_EVENT_READ, BHV_TO_VNODE(bdp),
@@ -401,7 +399,7 @@ xfs_splice_write(
if (DM_EVENT_ENABLED(BHV_TO_VNODE(bdp)->v_vfsp, ip, DM_EVENT_WRITE) &&
(!(ioflags & IO_INVIS))) {
- vrwlock_t locktype = VRWLOCK_WRITE;
+ bhv_vrwlock_t locktype = VRWLOCK_WRITE;
int error;
error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, BHV_TO_VNODE(bdp),
@@ -458,7 +456,7 @@ xfs_zero_last_block(
last_fsb = XFS_B_TO_FSBT(mp, isize);
nimaps = 1;
error = XFS_BMAPI(mp, NULL, io, last_fsb, 1, 0, NULL, 0, &imap,
- &nimaps, NULL);
+ &nimaps, NULL, NULL);
if (error) {
return error;
}
@@ -499,7 +497,7 @@ xfs_zero_last_block(
int /* error (positive) */
xfs_zero_eof(
- vnode_t *vp,
+ bhv_vnode_t *vp,
xfs_iocore_t *io,
xfs_off_t offset, /* starting I/O offset */
xfs_fsize_t isize, /* current inode size */
@@ -510,7 +508,6 @@ xfs_zero_eof(
xfs_fileoff_t end_zero_fsb;
xfs_fileoff_t zero_count_fsb;
xfs_fileoff_t last_fsb;
- xfs_extlen_t buf_len_fsb;
xfs_mount_t *mp = io->io_mount;
int nimaps;
int error = 0;
@@ -556,7 +553,7 @@ xfs_zero_eof(
nimaps = 1;
zero_count_fsb = end_zero_fsb - start_zero_fsb + 1;
error = XFS_BMAPI(mp, NULL, io, start_zero_fsb, zero_count_fsb,
- 0, NULL, 0, &imap, &nimaps, NULL);
+ 0, NULL, 0, &imap, &nimaps, NULL, NULL);
if (error) {
ASSERT(ismrlocked(io->io_lock, MR_UPDATE));
ASSERT(ismrlocked(io->io_iolock, MR_UPDATE));
@@ -579,16 +576,7 @@ xfs_zero_eof(
}
/*
- * There are blocks in the range requested.
- * Zero them a single write at a time. We actually
- * don't zero the entire range returned if it is
- * too big and simply loop around to get the rest.
- * That is not the most efficient thing to do, but it
- * is simple and this path should not be exercised often.
- */
- buf_len_fsb = XFS_FILBLKS_MIN(imap.br_blockcount,
- mp->m_writeio_blocks << 8);
- /*
+ * There are blocks we need to zero.
* Drop the inode lock while we're doing the I/O.
* We'll still have the iolock to protect us.
*/
@@ -596,14 +584,13 @@ xfs_zero_eof(
error = xfs_iozero(ip,
XFS_FSB_TO_B(mp, start_zero_fsb),
- XFS_FSB_TO_B(mp, buf_len_fsb),
+ XFS_FSB_TO_B(mp, imap.br_blockcount),
end_size);
-
if (error) {
goto out_lock;
}
- start_zero_fsb = imap.br_startoff + buf_len_fsb;
+ start_zero_fsb = imap.br_startoff + imap.br_blockcount;
ASSERT(start_zero_fsb <= (end_zero_fsb + 1));
XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
@@ -637,11 +624,11 @@ xfs_write(
ssize_t ret = 0, error = 0;
xfs_fsize_t isize, new_size;
xfs_iocore_t *io;
- vnode_t *vp;
+ bhv_vnode_t *vp;
unsigned long seg;
int iolock;
int eventsent = 0;
- vrwlock_t locktype;
+ bhv_vrwlock_t locktype;
size_t ocount = 0, count;
loff_t pos;
int need_i_mutex = 1, need_flush = 0;
@@ -679,11 +666,11 @@ xfs_write(
io = &xip->i_iocore;
mp = io->io_mount;
+ vfs_wait_for_freeze(vp->v_vfsp, SB_FREEZE_WRITE);
+
if (XFS_FORCED_SHUTDOWN(mp))
return -EIO;
- fs_check_frozen(vp->v_vfsp, SB_FREEZE_WRITE);
-
if (ioflags & IO_ISDIRECT) {
xfs_buftarg_t *target =
(xip->i_d.di_flags & XFS_DIFLAG_REALTIME) ?
@@ -814,7 +801,7 @@ retry:
if (need_flush) {
xfs_inval_cached_trace(io, pos, -1,
ctooff(offtoct(pos)), -1);
- VOP_FLUSHINVAL_PAGES(vp, ctooff(offtoct(pos)),
+ bhv_vop_flushinval_pages(vp, ctooff(offtoct(pos)),
-1, FI_REMAPF_LOCKED);
}
@@ -903,79 +890,9 @@ retry:
/* Handle various SYNC-type writes */
if ((file->f_flags & O_SYNC) || IS_SYNC(inode)) {
- /*
- * If we're treating this as O_DSYNC and we have not updated the
- * size, force the log.
- */
- if (!(mp->m_flags & XFS_MOUNT_OSYNCISOSYNC) &&
- !(xip->i_update_size)) {
- xfs_inode_log_item_t *iip = xip->i_itemp;
-
- /*
- * If an allocation transaction occurred
- * without extending the size, then we have to force
- * the log up the proper point to ensure that the
- * allocation is permanent. We can't count on
- * the fact that buffered writes lock out direct I/O
- * writes - the direct I/O write could have extended
- * the size nontransactionally, then finished before
- * we started. xfs_write_file will think that the file
- * didn't grow but the update isn't safe unless the
- * size change is logged.
- *
- * Force the log if we've committed a transaction
- * against the inode or if someone else has and
- * the commit record hasn't gone to disk (e.g.
- * the inode is pinned). This guarantees that
- * all changes affecting the inode are permanent
- * when we return.
- */
- if (iip && iip->ili_last_lsn) {
- xfs_log_force(mp, iip->ili_last_lsn,
- XFS_LOG_FORCE | XFS_LOG_SYNC);
- } else if (xfs_ipincount(xip) > 0) {
- xfs_log_force(mp, (xfs_lsn_t)0,
- XFS_LOG_FORCE | XFS_LOG_SYNC);
- }
-
- } else {
- xfs_trans_t *tp;
-
- /*
- * O_SYNC or O_DSYNC _with_ a size update are handled
- * the same way.
- *
- * If the write was synchronous then we need to make
- * sure that the inode modification time is permanent.
- * We'll have updated the timestamp above, so here
- * we use a synchronous transaction to log the inode.
- * It's not fast, but it's necessary.
- *
- * If this a dsync write and the size got changed
- * non-transactionally, then we need to ensure that
- * the size change gets logged in a synchronous
- * transaction.
- */
-
- tp = xfs_trans_alloc(mp, XFS_TRANS_WRITE_SYNC);
- if ((error = xfs_trans_reserve(tp, 0,
- XFS_SWRITE_LOG_RES(mp),
- 0, 0, 0))) {
- /* Transaction reserve failed */
- xfs_trans_cancel(tp, 0);
- } else {
- /* Transaction reserve successful */
- xfs_ilock(xip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, xip, XFS_ILOCK_EXCL);
- xfs_trans_ihold(tp, xip);
- xfs_trans_log_inode(tp, xip, XFS_ILOG_CORE);
- xfs_trans_set_sync(tp);
- error = xfs_trans_commit(tp, 0, NULL);
- xfs_iunlock(xip, XFS_ILOCK_EXCL);
- }
- if (error)
- goto out_unlock_internal;
- }
+ error = xfs_write_sync_logforce(mp, xip);
+ if (error)
+ goto out_unlock_internal;
xfs_rwunlock(bdp, locktype);
if (need_i_mutex)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.