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| author | Dmitriy Monakhov <dmonakhov@openvz.org> | 2007-05-08 09:23:02 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 20:14:57 +0200 |
| commit | 0ceb331433e8aad9c5f441a965d7c681f8b9046f (patch) | |
| tree | fd3d679a4015242dd65f0721f52242ad47619910 /fs/xfs | |
| parent | Increase slab redzone to 64bits (diff) | |
| download | linux-0ceb331433e8aad9c5f441a965d7c681f8b9046f.tar.xz linux-0ceb331433e8aad9c5f441a965d7c681f8b9046f.zip | |
mm: move common segment checks to separate helper function
[akpm@linux-foundation.org: cleanup]
Signed-off-by: Monakhov Dmitriy <dmonakhov@openvz.org>
Cc: Christoph Hellwig <hch@lst.de>
Acked-by: Anton Altaparmakov <aia21@cam.ac.uk>
Acked-by: David Chinner <dgc@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_lrw.c | 22 |
1 files changed, 3 insertions, 19 deletions
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c index ff8d64eba9f8..558076dd0752 100644 --- a/fs/xfs/linux-2.6/xfs_lrw.c +++ b/fs/xfs/linux-2.6/xfs_lrw.c @@ -639,7 +639,6 @@ xfs_write( xfs_fsize_t isize, new_size; xfs_iocore_t *io; bhv_vnode_t *vp; - unsigned long seg; int iolock; int eventsent = 0; bhv_vrwlock_t locktype; @@ -652,24 +651,9 @@ xfs_write( vp = BHV_TO_VNODE(bdp); xip = XFS_BHVTOI(bdp); - for (seg = 0; seg < segs; seg++) { - const struct iovec *iv = &iovp[seg]; - - /* - * If any segment has a negative length, or the cumulative - * length ever wraps negative then return -EINVAL. - */ - ocount += iv->iov_len; - if (unlikely((ssize_t)(ocount|iv->iov_len) < 0)) - return -EINVAL; - if (access_ok(VERIFY_READ, iv->iov_base, iv->iov_len)) - continue; - if (seg == 0) - return -EFAULT; - segs = seg; - ocount -= iv->iov_len; /* This segment is no good */ - break; - } + error = generic_segment_checks(iovp, &segs, &ocount, VERIFY_READ); + if (error) + return error; count = ocount; pos = *offset; |