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authorLinus Torvalds <torvalds@linux-foundation.org>2009-10-09 13:29:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-10-09 13:29:42 -0700
commita372bf8b6a12f23f68e716113ccaea4bf646dd0f (patch)
tree3852e11c78e5dea779f49e9a94288c8ac827e821 /fs/xfs/xfs_dir2_leaf.c
parent0d5d1aadc8e299874a6a014d65b6bb903b12424d (diff)
parente09d39968bd8befa087f10f970fa236e8694b643 (diff)
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs: xfs: stop calling filemap_fdatawait inside ->fsync fix readahead calculations in xfs_dir2_leaf_getdents() xfs: make sure xfs_sync_fsdata covers the log xfs: mark inodes dirty before issuing I/O xfs: cleanup ->sync_fs xfs: fix xfs_quiesce_data xfs: implement ->dirty_inode to fix timestamp handling
Diffstat (limited to 'fs/xfs/xfs_dir2_leaf.c')
-rw-r--r--fs/xfs/xfs_dir2_leaf.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index fa913e45944..41ad537c49e 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -854,6 +854,7 @@ xfs_dir2_leaf_getdents(
*/
ra_want = howmany(bufsize + mp->m_dirblksize,
mp->m_sb.sb_blocksize) - 1;
+ ASSERT(ra_want >= 0);
/*
* If we don't have as many as we want, and we haven't
@@ -1088,7 +1089,8 @@ xfs_dir2_leaf_getdents(
*/
ptr += length;
curoff += length;
- bufsize -= length;
+ /* bufsize may have just been a guess; don't go negative */
+ bufsize = bufsize > length ? bufsize - length : 0;
}
/*