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authorDavid Chinner <dgc@sgi.com>2008-04-29 12:53:21 +1000
committerLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2008-04-29 15:58:40 +1000
commit86c4d62305649848164ae311a0959fc569b0d964 (patch)
tree068a54455ff120adf456135b96396b92e37fd8b3
parentd349404ff14758dc9a2d3df032073ed795085860 (diff)
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[XFS] Fix check for block zero access in xfs_write_iomap_allocate()
The check for block zero access should be done on non-realtime inodes. Fix the logic error in xfs_write_iomap_allocate(), and simplify the logic on all checks for block zero access in xfs_iomap.c SGI-PV: 980888 SGI-Modid: xfs-linux-melb:xfs-kern:30998a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
-rw-r--r--fs/xfs/xfs_iomap.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index a2c3200..7edcde6 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -523,8 +523,7 @@ xfs_iomap_write_direct(
goto error_out;
}
- if (unlikely(!imap.br_startblock &&
- !(XFS_IS_REALTIME_INODE(ip)))) {
+ if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip))) {
error = xfs_cmn_err_fsblock_zero(ip, &imap);
goto error_out;
}
@@ -686,8 +685,7 @@ retry:
goto retry;
}
- if (unlikely(!imap[0].br_startblock &&
- !(XFS_IS_REALTIME_INODE(ip))))
+ if (!(imap[0].br_startblock || XFS_IS_REALTIME_INODE(ip)))
return xfs_cmn_err_fsblock_zero(ip, &imap[0]);
*ret_imap = imap[0];
@@ -838,9 +836,9 @@ xfs_iomap_write_allocate(
* See if we were able to allocate an extent that
* covers at least part of the callers request
*/
- if (unlikely(!imap.br_startblock &&
- XFS_IS_REALTIME_INODE(ip)))
+ if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip)))
return xfs_cmn_err_fsblock_zero(ip, &imap);
+
if ((offset_fsb >= imap.br_startoff) &&
(offset_fsb < (imap.br_startoff +
imap.br_blockcount))) {
@@ -934,8 +932,7 @@ xfs_iomap_write_unwritten(
if (error)
return XFS_ERROR(error);
- if (unlikely(!imap.br_startblock &&
- !(XFS_IS_REALTIME_INODE(ip))))
+ if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip)))
return xfs_cmn_err_fsblock_zero(ip, &imap);
if ((numblks_fsb = imap.br_blockcount) == 0) {