Commit c36b97e9 authored by Bob Peterson's avatar Bob Peterson
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GFS2: Protect freeing directory hash table with i_lock spin_lock



This patch changes function gfs2_dir_hash_inval so it uses the
i_lock spin_lock to protect the in-core hash table, i_hash_cache.
This will prevent double-frees due to a race between gfs2_evict_inode
and inode invalidation.
Signed-off-by: default avatarBob Peterson <rpeterso@redhat.com>
parent f3dd1649
......@@ -388,8 +388,13 @@ static __be64 *gfs2_dir_get_hash_table(struct gfs2_inode *ip)
*/
void gfs2_dir_hash_inval(struct gfs2_inode *ip)
{
__be64 *hc = ip->i_hash_cache;
__be64 *hc;
spin_lock(&ip->i_inode.i_lock);
hc = ip->i_hash_cache;
ip->i_hash_cache = NULL;
spin_unlock(&ip->i_inode.i_lock);
kvfree(hc);
}
......
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