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xfs: remove xfs_tosspages

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It's a buggy, unnecessary wrapper that is duplicating
truncate_pagecache_range().

When replacing the call in xfs_change_file_space(), also ensure that
the length being allocated/freed is always positive before making
any changes. These checks are done in the lower extent manipulation
functions, too, but we need to do them before any page cache
operations.

Reported-by: Andrew Dahl <adahl@sgi.com>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-By: Andrew Dahl <adahl@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Dave Chinner
2012-11-14 17:42:47 +11:00
committed by Ben Myers
parent de497688da
commit f5b8911b67
4 changed files with 26 additions and 21 deletions
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3
fs/xfs/xfs_dfrag.c
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@@ -315,8 +315,7 @@ xfs_swap_extents(
* are safe. We don't really care if non-io related
* fields change.
*/
xfs_tosspages(ip, 0, -1, FI_REMAPF);
truncate_pagecache_range(VFS_I(ip), 0, -1);
tp = xfs_trans_alloc(mp, XFS_TRANS_SWAPEXT);
if ((error = xfs_trans_reserve(tp, 0,