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(parent: 137c9eb) | patch
Unionfs: prevent deadlock in cache coherency
authorErez Zadok <ezk@cs.sunysb.edu>
Fri, 21 Dec 2007 04:08:13 +0000 (23:08 -0500)
committerErez Zadok <ezk@cs.sunysb.edu>
Tue, 13 Jan 2009 02:32:26 +0000 (21:32 -0500)
commit0dd86d072601e44ff8f5efee73c0ee907fa46dd0
tree00c20e454d16de5ea9a6250b643564214c895d6ctree | snapshot
parent137c9ebd91f55cdef42c7c24f17a8c79a5a9ce5ccommit | diff
Unionfs: prevent deadlock in cache coherency

Don't try to truncate_inode_pages in in purge_inode_data, because this could
lead to a deadlock between some of address_space ops and dentry
revalidation: the address space op is invoked with a lock on our own page,
and truncate_inode_pages will block on locked pages.  Instead, it should be
enough to be gentler and just invalidate_mapping_pages.

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