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authorAl Viro <viro@zeniv.linux.org.uk>2012-02-06 12:45:27 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-03-20 21:29:32 -0400
commit8de52778798fe39660a8d6b26f290e0c93202761 (patch)
tree56384beb7863c1f338f2b66b509bf58eea5a99c2 /fs/xfs/xfs_vnodeops.c
parentc16fa4f2ad19908a47c63d8fa436a1178438c7e7 (diff)
downloadop-kernel-dev-8de52778798fe39660a8d6b26f290e0c93202761.zip
op-kernel-dev-8de52778798fe39660a8d6b26f290e0c93202761.tar.gz
vfs: check i_nlink limits in vfs_{mkdir,rename_dir,link}
New field of struct super_block - ->s_max_links. Maximal allowed value of ->i_nlink or 0; in the latter case all checks still need to be done in ->link/->mkdir/->rename instances. Note that this limit applies both to directoris and to non-directories. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/xfs/xfs_vnodeops.c')
-rw-r--r--fs/xfs/xfs_vnodeops.c16
1 files changed, 0 insertions, 16 deletions
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index ebdb888..64981d7 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -917,14 +917,6 @@ xfs_create(
xfs_ilock(dp, XFS_ILOCK_EXCL | XFS_ILOCK_PARENT);
unlock_dp_on_error = B_TRUE;
- /*
- * Check for directory link count overflow.
- */
- if (is_dir && dp->i_d.di_nlink >= XFS_MAXLINK) {
- error = XFS_ERROR(EMLINK);
- goto out_trans_cancel;
- }
-
xfs_bmap_init(&free_list, &first_block);
/*
@@ -1429,14 +1421,6 @@ xfs_link(
xfs_trans_ijoin(tp, tdp, XFS_ILOCK_EXCL);
/*
- * If the source has too many links, we can't make any more to it.
- */
- if (sip->i_d.di_nlink >= XFS_MAXLINK) {
- error = XFS_ERROR(EMLINK);
- goto error_return;
- }
-
- /*
* If we are using project inheritance, we only allow hard link
* creation in our tree when the project IDs are the same; else
* the tree quota mechanism could be circumvented.
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