From 2f6ce8e73caa443201e3d826639b9242cf6ea568 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Wed, 23 Jul 2014 13:46:49 -0400 Subject: [PATCH] nfsd: ensure that st_access_bmap and st_deny_bmap are initialized to 0 Open stateids must be initialized with the st_access_bmap and st_deny_bmap set to 0, so that nfs4_get_vfs_file can properly record their state in old_access_bmap and old_deny_bmap. This bug was introduced in commit baeb4ff0e502 (nfsd: make deny mode enforcement more efficient and close races in it) and was causing the refcounts to end up incorrect when nfs4_get_vfs_file returned an error after bumping the refcounts. This made it impossible to unmount the underlying filesystem after running pynfs tests that involve deny modes. Signed-off-by: Jeff Layton Signed-off-by: J. Bruce Fields --- Reading git-format-patch failed