miklos at szeredi
Jul 21, 2008, 4:38 AM
Post #1 of 2
(176 views)
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[patch] nfs: fix permission mask
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From: Miklos Szeredi <mszeredi [at] suse>
Handle auxiliary mask bits in nfs_permission() properly.
Signed-off-by: Miklos Szeredi <mszeredi [at] suse>
---
fs/nfs/dir.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Index: linux-2.6/fs/nfs/dir.c
===================================================================
--- linux-2.6.orig/fs/nfs/dir.c 2008-07-21 09:46:07.000000000 +0200
+++ linux-2.6/fs/nfs/dir.c 2008-07-21 13:09:28.000000000 +0200
@@ -1884,7 +1884,7 @@ static int nfs_do_access(struct inode *i
return status;
nfs_access_add_cache(inode, &cache);
out:
- if ((cache.mask & mask) == mask)
+ if ((mask & ~cache.mask & (MAY_READ | MAY_WRITE | MAY_EXEC)) == 0)
return 0;
return -EACCES;
}
@@ -1914,7 +1914,7 @@ int nfs_permission(struct inode *inode,
nfs_inc_stats(inode, NFSIOS_VFSACCESS);
- if (mask == 0)
+ if ((mask & (MAY_READ | MAY_WRITE | MAY_EXEC)) == 0)
goto out;
/* Is this sys_access() ? */
if (mask & MAY_ACCESS)
--
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