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gfs2: Initialize iopen glock holder for new inodes 

In gfs2_init_inode_once, initialize inode->i_iopen_gh.gh_gl to NULL:
otherwise, when gfs2_inode_lookup fails, the iopen glock holder can
remain unset and iget_failed can end up accessing random memory.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
This commit is contained in:
Andreas Gruenbacher 2016-06-17 07:22:15 -05:00 committed by Bob Peterson
parent 36e4ad0316
commit 1e875f5a95
1 changed files with 1 additions and 0 deletions
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fs/gfs2/main.c
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@ -45,6 +45,7 @@ static void gfs2_init_inode_once(void *foo)
memset(&ip->i_res, 0, sizeof(ip->i_res));
RB_CLEAR_NODE(&ip->i_res.rs_node);
ip->i_hash_cache = NULL;
ip->i_iopen_gh.gh_gl = NULL;
}
static void gfs2_init_glock_once(void *foo)