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xfs: bmap code cleanup 

Remove the extent size hint and realtime inode relevant code from
the xfs_bmapi_reserve_delalloc since it is not called on the inode
with extent size hint set or on a realtime inode.

Signed-off-by: Shan Hai <shan.hai@oracle.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Shan Hai 2018-01-23 13:56:11 -08:00 committed by Darrick J. Wong
parent 643c8c05e7
commit 6ca30729c2
1 changed files with 8 additions and 24 deletions
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32
fs/xfs/libxfs/xfs_bmap.c
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@ -3876,8 +3876,6 @@ xfs_bmapi_reserve_delalloc(
struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, whichfork);
xfs_extlen_t alen;
xfs_extlen_t indlen;
char rt = XFS_IS_REALTIME_INODE(ip);
xfs_extlen_t extsz;
int error;
xfs_fileoff_t aoff = off;
@ -3892,31 +3890,25 @@ xfs_bmapi_reserve_delalloc(
prealloc = alen - len;
/* Figure out the extent size, adjust alen */
if (whichfork == XFS_COW_FORK)
extsz = xfs_get_cowextsz_hint(ip);
else
extsz = xfs_get_extsz_hint(ip);
if (extsz) {
if (whichfork == XFS_COW_FORK) {
struct xfs_bmbt_irec prev;
xfs_extlen_t extsz = xfs_get_cowextsz_hint(ip);
if (!xfs_iext_peek_prev_extent(ifp, icur, &prev))
prev.br_startoff = NULLFILEOFF;
error = xfs_bmap_extsize_align(mp, got, &prev, extsz, rt, eof,
error = xfs_bmap_extsize_align(mp, got, &prev, extsz, 0, eof,
1, 0, &aoff, &alen);
ASSERT(!error);
}
if (rt)
extsz = alen / mp->m_sb.sb_rextsize;
/*
* Make a transaction-less quota reservation for delayed allocation
* blocks. This number gets adjusted later. We return if we haven't
* allocated blocks already inside this loop.
*/
error = xfs_trans_reserve_quota_nblks(NULL, ip, (long)alen, 0,
rt ? XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS);
XFS_QMOPT_RES_REGBLKS);
if (error)
return error;
@ -3927,12 +3919,7 @@ xfs_bmapi_reserve_delalloc(
indlen = (xfs_extlen_t)xfs_bmap_worst_indlen(ip, alen);
ASSERT(indlen > 0);
if (rt) {
error = xfs_mod_frextents(mp, -((int64_t)extsz));
} else {
error = xfs_mod_fdblocks(mp, -((int64_t)alen), false);
}
error = xfs_mod_fdblocks(mp, -((int64_t)alen), false);
if (error)
goto out_unreserve_quota;
@ -3963,14 +3950,11 @@ xfs_bmapi_reserve_delalloc(
return 0;
out_unreserve_blocks:
if (rt)
xfs_mod_frextents(mp, extsz);
else
xfs_mod_fdblocks(mp, alen, false);
xfs_mod_fdblocks(mp, alen, false);
out_unreserve_quota:
if (XFS_IS_QUOTA_ON(mp))
xfs_trans_unreserve_quota_nblks(NULL, ip, (long)alen, 0, rt ?
XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS);
xfs_trans_unreserve_quota_nblks(NULL, ip, (long)alen, 0,
XFS_QMOPT_RES_REGBLKS);
return error;
}