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xfs: do not use xfs_bmap_add_extent for adding delalloc extents

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We can just call xfs_bmap_add_extent_hole_delay directly to add a
delayed allocated regions to the extent tree, instead of going
through all the complexities of xfs_bmap_add_extent that aren't
needed for this simple case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
This commit is contained in:
Christoph Hellwig 2011-09-18 20:40:49 +00:00 committed by Alex Elder
parent 4403280aa5
commit 1fd044d9c6
1 changed files with 9 additions and 43 deletions
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52
fs/xfs/xfs_bmap.c
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@ -100,17 +100,6 @@ xfs_bmap_add_extent_delay_real(
xfs_bmap_free_t *flist, /* list of extents to be freed */
int *logflagsp); /* inode logging flags */
/*
* Called by xfs_bmap_add_extent to handle cases converting a hole
* to a delayed allocation.
*/
STATIC int /* error */
xfs_bmap_add_extent_hole_delay(
xfs_inode_t *ip, /* incore inode pointer */
xfs_extnum_t *idx, /* extent number to update/insert */
xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp); /* inode logging flags */
/*
* Called by xfs_bmap_add_extent to handle cases converting a hole
* to a real allocation.
@ -431,8 +420,7 @@ xfs_bmap_add_attrfork_local(
}
/*
* Called by xfs_bmapi to update file extent records and the btree
* after allocating space (or doing a delayed allocation).
* Update file extent records and the btree after allocating space.
*/
STATIC int /* error */
xfs_bmap_add_extent(
@ -464,21 +452,12 @@ xfs_bmap_add_extent(
ASSERT(*idx >= 0);
ASSERT(*idx <= nextents);
ASSERT(!isnullstartblock(new->br_startblock));
/*
* Any kind of new delayed allocation goes here.
*/
if (isnullstartblock(new->br_startblock)) {
if (cur)
ASSERT((cur->bc_private.b.flags &
XFS_BTCUR_BPRV_WASDEL) == 0);
error = xfs_bmap_add_extent_hole_delay(ip, idx, new,
&logflags);
}
/*
* Real allocation off the end of the file.
*/
else if (*idx == nextents) {
if (*idx == nextents) {
if (cur)
ASSERT((cur->bc_private.b.flags &
XFS_BTCUR_BPRV_WASDEL) == 0);
@ -1581,16 +1560,13 @@ xfs_bmap_add_extent_unwritten_real(
}
/*
* Called by xfs_bmap_add_extent to handle cases converting a hole
* to a delayed allocation.
* Convert a hole to a delayed allocation.
*/
/*ARGSUSED*/
STATIC int /* error */
STATIC void
xfs_bmap_add_extent_hole_delay(
xfs_inode_t *ip, /* incore inode pointer */
xfs_extnum_t *idx, /* extent number to update/insert */
xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp) /* inode logging flags */
xfs_bmbt_irec_t *new) /* new data to add to file extents */
{
xfs_ifork_t *ifp; /* inode fork pointer */
xfs_bmbt_irec_t left; /* left neighbor extent entry */
@ -1725,8 +1701,6 @@ xfs_bmap_add_extent_hole_delay(
* Nothing to do for disk quota accounting here.
*/
}
*logflagsp = 0;
return 0;
}
/*
@ -4455,9 +4429,6 @@ xfs_bmapi_reserve_delalloc(
struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
xfs_extlen_t alen;
xfs_extlen_t indlen;
xfs_fsblock_t firstblock = NULLFSBLOCK;
struct xfs_btree_cur *cur = NULL;
int tmp_logflags = 0;
char rt = XFS_IS_REALTIME_INODE(ip);
xfs_extlen_t extsz;
int error;
@ -4524,16 +4495,11 @@ xfs_bmapi_reserve_delalloc(
got->br_startblock = nullstartblock(indlen);
got->br_blockcount = alen;
got->br_state = XFS_EXT_NORM;
error = xfs_bmap_add_extent(NULL, ip, lastx, &cur, got, &firstblock,
NULL, &tmp_logflags, XFS_DATA_FORK);
ASSERT(!error);
ASSERT(!tmp_logflags);
ASSERT(!cur);
xfs_bmap_add_extent_hole_delay(ip, lastx, got);
/*
* Update our extent pointer, given that xfs_bmap_add_extent might
* have merged it into one of the neighbouring ones.
* Update our extent pointer, given that xfs_bmap_add_extent_hole_delay
* might have merged it into one of the neighbouring ones.
*/
xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *lastx), got);