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[XFS] Invalidate dentry in unlink/rmdir if in case-insensitive mode 

The vfs_unlink/d_delete functionality in the Linux VFS make the
dentry negative if it is the only inode being referenced. Case-insensitive
mode doesn't work with negative dentries, so if using CI-mode, invalidate
the dentry on unlink/rmdir.

SGI-PV: 983102
SGI-Modid: xfs-linux-melb:xfs-kern:31308a

Signed-off-by: Barry Naujok <bnaujok@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
This commit is contained in:
Barry Naujok 2008-06-16 12:07:41 +10:00 committed by Niv Sardi
parent 87affd08bc
commit d532506cd8
1 changed files with 14 additions and 0 deletions
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14
fs/xfs/linux-2.6/xfs_iops.c
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@ -475,6 +475,13 @@ xfs_vn_unlink(
if (likely(!error)) {
xfs_validate_fields(dir); /* size needs update */
xfs_validate_fields(inode);
/*
* With unlink, the VFS makes the dentry "negative": no inode,
* but still hashed. This is incompatible with case-insensitive
* mode, so invalidate (unhash) the dentry in CI-mode.
*/
if (xfs_sb_version_hasasciici(&XFS_M(dir->i_sb)->m_sb))
d_invalidate(dentry);
}
return -error;
}
@ -531,6 +538,13 @@ xfs_vn_rmdir(
if (likely(!error)) {
xfs_validate_fields(inode);
xfs_validate_fields(dir);
/*
* With rmdir, the VFS makes the dentry "negative": no inode,
* but still hashed. This is incompatible with case-insensitive
* mode, so invalidate (unhash) the dentry in CI-mode.
*/
if (xfs_sb_version_hasasciici(&XFS_M(dir->i_sb)->m_sb))
d_invalidate(dentry);
}
return -error;
}