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xfs: remove duplicate buffer flags 

Currently we define aliases for the buffer flags in various
namespaces, which only adds confusion.  Remove all but the XBF_
flags to clean this up a bit.

Note that we still abuse XFS_B_ASYNC/XBF_ASYNC for some non-buffer
uses, but I'll clean that up later.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
This commit is contained in:
Christoph Hellwig 2010-01-19 09:56:44 +00:00 committed by Alex Elder
parent a210c1aa7f
commit 0cadda1c5f
17 changed files with 53 additions and 70 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/xfs/linux-2.6/xfs_buf.c
View File

@ -1169,7 +1169,7 @@ xfs_bioerror_relse(
XFS_BUF_STALE(bp);
XFS_BUF_CLR_IODONE_FUNC(bp);
XFS_BUF_CLR_BDSTRAT_FUNC(bp);
if (!(fl & XFS_B_ASYNC)) {
if (!(fl & XBF_ASYNC)) {
/*
* Mark b_error and B_ERROR _both_.
* Lot's of chunkcache code assumes that.

22
fs/xfs/linux-2.6/xfs_buf.h
View File

@ -275,33 +275,19 @@ extern void xfs_buf_terminate(void);
({ char __b[BDEVNAME_SIZE]; bdevname((target)->bt_bdev, __b); __b; })
#define XFS_B_ASYNC XBF_ASYNC
#define XFS_B_DELWRI XBF_DELWRI
#define XFS_B_READ XBF_READ
#define XFS_B_WRITE XBF_WRITE
#define XFS_B_STALE XBF_STALE
#define XFS_BUF_TRYLOCK XBF_TRYLOCK
#define XFS_INCORE_TRYLOCK XBF_TRYLOCK
#define XFS_BUF_LOCK XBF_LOCK
#define XFS_BUF_MAPPED XBF_MAPPED
#define BUF_BUSY XBF_DONT_BLOCK
#define XFS_BUF_BFLAGS(bp) ((bp)->b_flags)
#define XFS_BUF_ZEROFLAGS(bp) ((bp)->b_flags &= \
~(XBF_READ|XBF_WRITE|XBF_ASYNC|XBF_DELWRI|XBF_ORDERED))
#define XFS_BUF_STALE(bp) ((bp)->b_flags |= XFS_B_STALE)
#define XFS_BUF_UNSTALE(bp) ((bp)->b_flags &= ~XFS_B_STALE)
#define XFS_BUF_ISSTALE(bp) ((bp)->b_flags & XFS_B_STALE)
#define XFS_BUF_STALE(bp) ((bp)->b_flags |= XBF_STALE)
#define XFS_BUF_UNSTALE(bp) ((bp)->b_flags &= ~XBF_STALE)
#define XFS_BUF_ISSTALE(bp) ((bp)->b_flags & XBF_STALE)
#define XFS_BUF_SUPER_STALE(bp) do { \
XFS_BUF_STALE(bp); \
xfs_buf_delwri_dequeue(bp); \
XFS_BUF_DONE(bp); \
} while (0)
#define XFS_BUF_MANAGE XBF_FS_MANAGED
#define XFS_BUF_UNMANAGE(bp) ((bp)->b_flags &= ~XBF_FS_MANAGED)
#define XFS_BUF_DELAYWRITE(bp) ((bp)->b_flags |= XBF_DELWRI)
@ -390,7 +376,7 @@ static inline void xfs_buf_relse(xfs_buf_t *bp)
#define xfs_biomove(bp, off, len, data, rw) \
xfs_buf_iomove((bp), (off), (len), (data), \
((rw) == XFS_B_WRITE) ? XBRW_WRITE : XBRW_READ)
((rw) == XBF_WRITE) ? XBRW_WRITE : XBRW_READ)
#define xfs_biozero(bp, off, len) \
xfs_buf_iomove((bp), (off), (len), NULL, XBRW_ZERO)

2
fs/xfs/linux-2.6/xfs_fs_subr.c
View File

@ -79,7 +79,7 @@ xfs_flush_pages(
xfs_iflags_clear(ip, XFS_ITRUNCATED);
ret = -filemap_fdatawrite(mapping);
}
if (flags & XFS_B_ASYNC)
if (flags & XBF_ASYNC)
return ret;
ret2 = xfs_wait_on_pages(ip, first, last);
if (!ret)

4
fs/xfs/linux-2.6/xfs_sync.c
View File

@ -234,7 +234,7 @@ xfs_sync_inode_data(
}
error = xfs_flush_pages(ip, 0, -1, (flags & SYNC_WAIT) ?
0 : XFS_B_ASYNC, FI_NONE);
0 : XBF_ASYNC, FI_NONE);
xfs_iunlock(ip, XFS_IOLOCK_SHARED);
out_wait:
@ -370,7 +370,7 @@ xfs_sync_fsdata(
if (flags & SYNC_TRYLOCK) {
ASSERT(!(flags & SYNC_WAIT));
bp = xfs_getsb(mp, XFS_BUF_TRYLOCK);
bp = xfs_getsb(mp, XBF_TRYLOCK);
if (!bp)
goto out;

3
fs/xfs/quota/xfs_dquot.c
View File

@ -1527,8 +1527,7 @@ xfs_qm_dqflock_pushbuf_wait(
* the flush lock when the I/O completes.
*/
bp = xfs_incore(dqp->q_mount->m_ddev_targp, dqp->q_blkno,
XFS_QI_DQCHUNKLEN(dqp->q_mount),
XFS_INCORE_TRYLOCK);
XFS_QI_DQCHUNKLEN(dqp->q_mount), XBF_TRYLOCK);
if (bp != NULL) {
if (XFS_BUF_ISDELAYWRITE(bp)) {
int error;

3
fs/xfs/quota/xfs_dquot_item.c
View File

@ -237,8 +237,7 @@ xfs_qm_dquot_logitem_pushbuf(
}
mp = dqp->q_mount;
bp = xfs_incore(mp->m_ddev_targp, qip->qli_format.qlf_blkno,
XFS_QI_DQCHUNKLEN(mp),
XFS_INCORE_TRYLOCK);
XFS_QI_DQCHUNKLEN(mp), XBF_TRYLOCK);
if (bp != NULL) {
if (XFS_BUF_ISDELAYWRITE(bp)) {
dopush = ((qip->qli_item.li_flags & XFS_LI_IN_AIL) &&

2
fs/xfs/xfs_alloc.c
View File

@ -2180,7 +2180,7 @@ xfs_alloc_read_agf(
ASSERT(agno != NULLAGNUMBER);
error = xfs_read_agf(mp, tp, agno,
(flags & XFS_ALLOC_FLAG_TRYLOCK) ? XFS_BUF_TRYLOCK : 0,
(flags & XFS_ALLOC_FLAG_TRYLOCK) ? XBF_TRYLOCK : 0,
bpp);
if (error)
return error;

12
fs/xfs/xfs_attr.c
View File

@ -2015,15 +2015,14 @@ xfs_attr_rmtval_get(xfs_da_args_t *args)
dblkno = XFS_FSB_TO_DADDR(mp, map[i].br_startblock);
blkcnt = XFS_FSB_TO_BB(mp, map[i].br_blockcount);
error = xfs_read_buf(mp, mp->m_ddev_targp, dblkno,
blkcnt,
XFS_BUF_LOCK | XBF_DONT_BLOCK,
blkcnt, XBF_LOCK | XBF_DONT_BLOCK,
&bp);
if (error)
return(error);
tmp = (valuelen < XFS_BUF_SIZE(bp))
? valuelen : XFS_BUF_SIZE(bp);
xfs_biomove(bp, 0, tmp, dst, XFS_B_READ);
xfs_biomove(bp, 0, tmp, dst, XBF_READ);
xfs_buf_relse(bp);
dst += tmp;
valuelen -= tmp;
@ -2149,13 +2148,13 @@ xfs_attr_rmtval_set(xfs_da_args_t *args)
blkcnt = XFS_FSB_TO_BB(mp, map.br_blockcount);
bp = xfs_buf_get(mp->m_ddev_targp, dblkno, blkcnt,
XFS_BUF_LOCK | XBF_DONT_BLOCK);
XBF_LOCK | XBF_DONT_BLOCK);
ASSERT(bp);
ASSERT(!XFS_BUF_GETERROR(bp));
tmp = (valuelen < XFS_BUF_SIZE(bp)) ? valuelen :
XFS_BUF_SIZE(bp);
xfs_biomove(bp, 0, tmp, src, XFS_B_WRITE);
xfs_biomove(bp, 0, tmp, src, XBF_WRITE);
if (tmp < XFS_BUF_SIZE(bp))
xfs_biozero(bp, tmp, XFS_BUF_SIZE(bp) - tmp);
if ((error = xfs_bwrite(mp, bp))) {/* GROT: NOTE: synchronous write */
@ -2216,8 +2215,7 @@ xfs_attr_rmtval_remove(xfs_da_args_t *args)
/*
* If the "remote" value is in the cache, remove it.
*/
bp = xfs_incore(mp->m_ddev_targp, dblkno, blkcnt,
XFS_INCORE_TRYLOCK);
bp = xfs_incore(mp->m_ddev_targp, dblkno, blkcnt, XBF_TRYLOCK);
if (bp) {
XFS_BUF_STALE(bp);
XFS_BUF_UNDELAYWRITE(bp);

2
fs/xfs/xfs_attr_leaf.c
View File

@ -2950,7 +2950,7 @@ xfs_attr_leaf_freextent(xfs_trans_t **trans, xfs_inode_t *dp,
map.br_blockcount);
bp = xfs_trans_get_buf(*trans,
dp->i_mount->m_ddev_targp,
dblkno, dblkcnt, XFS_BUF_LOCK);
dblkno, dblkcnt, XBF_LOCK);
xfs_trans_binval(*trans, bp);
/*
* Roll to next transaction.

4
fs/xfs/xfs_btree.c
View File

@ -977,7 +977,7 @@ xfs_btree_get_buf_block(
xfs_daddr_t d;
/* need to sort out how callers deal with failures first */
ASSERT(!(flags & XFS_BUF_TRYLOCK));
ASSERT(!(flags & XBF_TRYLOCK));
d = xfs_btree_ptr_to_daddr(cur, ptr);
*bpp = xfs_trans_get_buf(cur->bc_tp, mp->m_ddev_targp, d,
@ -1008,7 +1008,7 @@ xfs_btree_read_buf_block(
int error;
/* need to sort out how callers deal with failures first */
ASSERT(!(flags & XFS_BUF_TRYLOCK));
ASSERT(!(flags & XBF_TRYLOCK));
d = xfs_btree_ptr_to_daddr(cur, ptr);
error = xfs_trans_read_buf(mp, cur->bc_tp, mp->m_ddev_targp, d,

2
fs/xfs/xfs_ialloc.c
View File

@ -205,7 +205,7 @@ xfs_ialloc_inode_init(
d = XFS_AGB_TO_DADDR(mp, agno, agbno + (j * blks_per_cluster));
fbuf = xfs_trans_get_buf(tp, mp->m_ddev_targp, d,
mp->m_bsize * blks_per_cluster,
XFS_BUF_LOCK);
XBF_LOCK);
ASSERT(fbuf);
ASSERT(!XFS_BUF_GETERROR(fbuf));

20
fs/xfs/xfs_inode.c
View File

@ -151,7 +151,7 @@ xfs_imap_to_bp(
"an error %d on %s. Returning error.",
error, mp->m_fsname);
} else {
ASSERT(buf_flags & XFS_BUF_TRYLOCK);
ASSERT(buf_flags & XBF_TRYLOCK);
}
return error;
}
@ -239,7 +239,7 @@ xfs_inotobp(
if (error)
return error;
error = xfs_imap_to_bp(mp, tp, &imap, &bp, XFS_BUF_LOCK, imap_flags);
error = xfs_imap_to_bp(mp, tp, &imap, &bp, XBF_LOCK, imap_flags);
if (error)
return error;
@ -285,7 +285,7 @@ xfs_itobp(
return error;
if (!bp) {
ASSERT(buf_flags & XFS_BUF_TRYLOCK);
ASSERT(buf_flags & XBF_TRYLOCK);
ASSERT(tp == NULL);
*bpp = NULL;
return EAGAIN;
@ -807,7 +807,7 @@ xfs_iread(
* Get pointers to the on-disk inode and the buffer containing it.
*/
error = xfs_imap_to_bp(mp, tp, &ip->i_imap, &bp,
XFS_BUF_LOCK, iget_flags);
XBF_LOCK, iget_flags);
if (error)
return error;
dip = (xfs_dinode_t *)xfs_buf_offset(bp, ip->i_imap.im_boffset);
@ -1751,7 +1751,7 @@ xfs_iunlink(
* Here we put the head pointer into our next pointer,
* and then we fall through to point the head at us.
*/
error = xfs_itobp(mp, tp, ip, &dip, &ibp, XFS_BUF_LOCK);
error = xfs_itobp(mp, tp, ip, &dip, &ibp, XBF_LOCK);
if (error)
return error;
@ -1833,7 +1833,7 @@ xfs_iunlink_remove(
* of dealing with the buffer when there is no need to
* change it.
*/
error = xfs_itobp(mp, tp, ip, &dip, &ibp, XFS_BUF_LOCK);
error = xfs_itobp(mp, tp, ip, &dip, &ibp, XBF_LOCK);
if (error) {
cmn_err(CE_WARN,
"xfs_iunlink_remove: xfs_itobp() returned an error %d on %s. Returning error.",
@ -1895,7 +1895,7 @@ xfs_iunlink_remove(
* Now last_ibp points to the buffer previous to us on
* the unlinked list. Pull us from the list.
*/
error = xfs_itobp(mp, tp, ip, &dip, &ibp, XFS_BUF_LOCK);
error = xfs_itobp(mp, tp, ip, &dip, &ibp, XBF_LOCK);
if (error) {
cmn_err(CE_WARN,
"xfs_iunlink_remove: xfs_itobp() returned an error %d on %s. Returning error.",
@ -2040,7 +2040,7 @@ xfs_ifree_cluster(
bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, blkno,
mp->m_bsize * blks_per_cluster,
XFS_BUF_LOCK);
XBF_LOCK);
pre_flushed = 0;
lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
@ -2151,7 +2151,7 @@ xfs_ifree(
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
error = xfs_itobp(ip->i_mount, tp, ip, &dip, &ibp, XFS_BUF_LOCK);
error = xfs_itobp(ip->i_mount, tp, ip, &dip, &ibp, XBF_LOCK);
if (error)
return error;
@ -2952,7 +2952,7 @@ xfs_iflush(
* Get the buffer containing the on-disk inode.
*/
error = xfs_itobp(mp, NULL, ip, &dip, &bp,
noblock ? XFS_BUF_TRYLOCK : XFS_BUF_LOCK);
noblock ? XBF_TRYLOCK : XBF_LOCK);
if (error || !bp) {
xfs_ifunlock(ip);
return error;

2
fs/xfs/xfs_inode_item.c
View File

@ -785,7 +785,7 @@ xfs_inode_item_pushbuf(
mp = ip->i_mount;
bp = xfs_incore(mp->m_ddev_targp, iip->ili_format.ilf_blkno,
iip->ili_format.ilf_len, XFS_INCORE_TRYLOCK);
iip->ili_format.ilf_len, XBF_TRYLOCK);
if (bp != NULL) {
if (XFS_BUF_ISDELAYWRITE(bp)) {

8
fs/xfs/xfs_log_recover.c
View File

@ -2184,9 +2184,9 @@ xlog_recover_do_buffer_trans(
}
mp = log->l_mp;
buf_flags = XFS_BUF_LOCK;
buf_flags = XBF_LOCK;
if (!(flags & XFS_BLI_INODE_BUF))
buf_flags |= XFS_BUF_MAPPED;
buf_flags |= XBF_MAPPED;
bp = xfs_buf_read(mp->m_ddev_targp, blkno, len, buf_flags);
if (XFS_BUF_ISERROR(bp)) {
@ -2288,7 +2288,7 @@ xlog_recover_do_inode_trans(
}
bp = xfs_buf_read(mp->m_ddev_targp, in_f->ilf_blkno, in_f->ilf_len,
XFS_BUF_LOCK);
XBF_LOCK);
if (XFS_BUF_ISERROR(bp)) {
xfs_ioerror_alert("xlog_recover_do..(read#2)", mp,
bp, in_f->ilf_blkno);
@ -3146,7 +3146,7 @@ xlog_recover_process_one_iunlink(
/*
* Get the on disk inode to find the next inode in the bucket.
*/
error = xfs_itobp(mp, NULL, ip, &dip, &ibp, XFS_BUF_LOCK);
error = xfs_itobp(mp, NULL, ip, &dip, &ibp, XBF_LOCK);
if (error)
goto fail_iput;

4
fs/xfs/xfs_mount.c
View File

@ -665,7 +665,7 @@ xfs_readsb(xfs_mount_t *mp, int flags)
* access to the superblock.
*/
sector_size = xfs_getsize_buftarg(mp->m_ddev_targp);
extra_flags = XFS_BUF_LOCK | XFS_BUF_MANAGE | XFS_BUF_MAPPED;
extra_flags = XBF_LOCK | XBF_FS_MANAGED | XBF_MAPPED;
bp = xfs_buf_read(mp->m_ddev_targp, XFS_SB_DADDR, BTOBB(sector_size),
extra_flags);
@ -1969,7 +1969,7 @@ xfs_getsb(
ASSERT(mp->m_sb_bp != NULL);
bp = mp->m_sb_bp;
if (flags & XFS_BUF_TRYLOCK) {
if (flags & XBF_TRYLOCK) {
if (!XFS_BUF_CPSEMA(bp)) {
return NULL;
}

27
fs/xfs/xfs_trans_buf.c
View File

@ -75,13 +75,14 @@ xfs_trans_get_buf(xfs_trans_t *tp,
xfs_buf_log_item_t *bip;
if (flags == 0)
flags = XFS_BUF_LOCK | XFS_BUF_MAPPED;
flags = XBF_LOCK | XBF_MAPPED;
/*
* Default to a normal get_buf() call if the tp is NULL.
*/
if (tp == NULL)
return xfs_buf_get(target_dev, blkno, len, flags | BUF_BUSY);
return xfs_buf_get(target_dev, blkno, len,
flags | XBF_DONT_BLOCK);
/*
* If we find the buffer in the cache with this transaction
@ -117,14 +118,14 @@ xfs_trans_get_buf(xfs_trans_t *tp,
}
/*
* We always specify the BUF_BUSY flag within a transaction so
* that get_buf does not try to push out a delayed write buffer
* We always specify the XBF_DONT_BLOCK flag within a transaction
* so that get_buf does not try to push out a delayed write buffer
* which might cause another transaction to take place (if the
* buffer was delayed alloc). Such recursive transactions can
* easily deadlock with our current transaction as well as cause
* us to run out of stack space.
*/
bp = xfs_buf_get(target_dev, blkno, len, flags | BUF_BUSY);
bp = xfs_buf_get(target_dev, blkno, len, flags | XBF_DONT_BLOCK);
if (bp == NULL) {
return NULL;
}
@ -290,15 +291,15 @@ xfs_trans_read_buf(
int error;
if (flags == 0)
flags = XFS_BUF_LOCK | XFS_BUF_MAPPED;
flags = XBF_LOCK | XBF_MAPPED;
/*
* Default to a normal get_buf() call if the tp is NULL.
*/
if (tp == NULL) {
bp = xfs_buf_read(target, blkno, len, flags | BUF_BUSY);
bp = xfs_buf_read(target, blkno, len, flags | XBF_DONT_BLOCK);
if (!bp)
return (flags & XFS_BUF_TRYLOCK) ?
return (flags & XBF_TRYLOCK) ?
EAGAIN : XFS_ERROR(ENOMEM);
if (XFS_BUF_GETERROR(bp) != 0) {
@ -385,14 +386,14 @@ xfs_trans_read_buf(
}
/*
* We always specify the BUF_BUSY flag within a transaction so
* that get_buf does not try to push out a delayed write buffer
* We always specify the XBF_DONT_BLOCK flag within a transaction
* so that get_buf does not try to push out a delayed write buffer
* which might cause another transaction to take place (if the
* buffer was delayed alloc). Such recursive transactions can
* easily deadlock with our current transaction as well as cause
* us to run out of stack space.
*/
bp = xfs_buf_read(target, blkno, len, flags | BUF_BUSY);
bp = xfs_buf_read(target, blkno, len, flags | XBF_DONT_BLOCK);
if (bp == NULL) {
*bpp = NULL;
return 0;
@ -472,8 +473,8 @@ shutdown_abort:
if (XFS_BUF_ISSTALE(bp) && XFS_BUF_ISDELAYWRITE(bp))
cmn_err(CE_NOTE, "about to pop assert, bp == 0x%p", bp);
#endif
ASSERT((XFS_BUF_BFLAGS(bp) & (XFS_B_STALE|XFS_B_DELWRI)) !=
(XFS_B_STALE|XFS_B_DELWRI));
ASSERT((XFS_BUF_BFLAGS(bp) & (XBF_STALE|XBF_DELWRI)) !=
(XBF_STALE|XBF_DELWRI));
trace_xfs_trans_read_buf_shut(bp, _RET_IP_);
xfs_buf_relse(bp);

4
fs/xfs/xfs_vnodeops.c
View File

@ -256,7 +256,7 @@ xfs_setattr(
iattr->ia_size > ip->i_d.di_size) {
code = xfs_flush_pages(ip,
ip->i_d.di_size, iattr->ia_size,
XFS_B_ASYNC, FI_NONE);
XBF_ASYNC, FI_NONE);
}
/* wait for all I/O to complete */
@ -1096,7 +1096,7 @@ xfs_release(
*/
truncated = xfs_iflags_test_and_clear(ip, XFS_ITRUNCATED);
if (truncated && VN_DIRTY(VFS_I(ip)) && ip->i_delayed_blks > 0)
xfs_flush_pages(ip, 0, -1, XFS_B_ASYNC, FI_NONE);
xfs_flush_pages(ip, 0, -1, XBF_ASYNC, FI_NONE);
}
if (ip->i_d.di_nlink != 0) {