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Unionfs: fix readonly nfs2/3 permission handling
authorErez Zadok <ezk@cs.sunysb.edu>
Tue, 22 Sep 2009 21:27:23 +0000 (17:27 -0400)
committerErez Zadok <ezk@cs.sunysb.edu>
Tue, 31 Jan 2012 05:05:57 +0000 (00:05 -0500)
commitbbef8daa056f70a064f8d6c4b399d275413d05ae
tree37488bc703b8339660c0764325c2fcb5dde404b2tree | snapshot
parent16793adf36defa6eb0c67fa2f8a1734ad20381cacommit | diff
Unionfs: fix readonly nfs2/3 permission handling

In unionfs_permission: NFSv2/3 return EACCES on readonly-exported, locally
readonly-mounted file systems, instead of EROFS like other file systems do.
So we have no choice here but to intercept this and ignore it for NFS
branches marked readonly.  Specifically, we avoid using NFS's own "broken"
->permission method, and rely on generic_permission() to do basic checking
for us.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
fs/unionfs/inode.c diff | blob | history
unionfs2-2.6.33.y