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authorEric Sandeen <sandeen@sandeen.net>2007-08-16 16:49:11 +1000
committerTim Shimmin <tes@chook.melbourne.sgi.com>2007-09-05 14:51:04 +1000
commit5995cb7d805496362e5af73235145667096fbc6f (patch)
tree2d0817c1a3d1ba6487699e02878c0c029b9fc89f /fs
parent265c1fac38e37e828df09965406e9cc20bfa3588 (diff)
downloadlinux-linaro-5995cb7d805496362e5af73235145667096fbc6f.tar.gz
[XFS] fix nasty quota hashtable allocation bug
This git mod: 77e4635ae191774526ed695482a151ac986f3806 converted to a "greedy" allocation interface, but for the quota hashtables it switched from allocating XFS_QM_HASHSIZE (nr of elements) xfs_dqhash_t's to allocating only XFS_QM_HASHSIZE *bytes* - quite a lot smaller! Then when we converted hsize "back" to nr of elements (the division line) hsize went to 0. This was leading to oopses when running any quota tests on the Fedora 8 test kernel, but the problem has been there for almost a year. SGI-PV: 968837 SGI-Modid: xfs-linux-melb:xfs-kern:29354a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/xfs/quota/xfs_qm.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index 2d274b23ade..6ff0f4de163 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -120,7 +120,8 @@ xfs_Gqm_init(void)
* Initialize the dquot hash tables.
*/
udqhash = kmem_zalloc_greedy(&hsize,
- XFS_QM_HASHSIZE_LOW, XFS_QM_HASHSIZE_HIGH,
+ XFS_QM_HASHSIZE_LOW * sizeof(xfs_dqhash_t),
+ XFS_QM_HASHSIZE_HIGH * sizeof(xfs_dqhash_t),
KM_SLEEP | KM_MAYFAIL | KM_LARGE);
gdqhash = kmem_zalloc(hsize, KM_SLEEP | KM_LARGE);
hsize /= sizeof(xfs_dqhash_t);