From da5029563a0a026c64821b09e8e7b4fd81d3fe1b Mon Sep 17 00:00:00 2001 From: Nick Piggin Date: Fri, 7 Jan 2011 17:49:33 +1100 Subject: fs: dcache scale d_unhashed Protect d_unhashed(dentry) condition with d_lock. This means keeping DCACHE_UNHASHED bit in synch with hash manipulations. Signed-off-by: Nick Piggin --- fs/configfs/configfs_internal.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/configfs/configfs_internal.h') diff --git a/fs/configfs/configfs_internal.h b/fs/configfs/configfs_internal.h index da6061a6df40..e58b4c30e216 100644 --- a/fs/configfs/configfs_internal.h +++ b/fs/configfs/configfs_internal.h @@ -121,6 +121,7 @@ static inline struct config_item *configfs_get_config_item(struct dentry *dentry struct config_item * item = NULL; spin_lock(&dcache_lock); + spin_lock(&dentry->d_lock); if (!d_unhashed(dentry)) { struct configfs_dirent * sd = dentry->d_fsdata; if (sd->s_type & CONFIGFS_ITEM_LINK) { @@ -129,6 +130,7 @@ static inline struct config_item *configfs_get_config_item(struct dentry *dentry } else item = config_item_get(sd->s_element); } + spin_unlock(&dentry->d_lock); spin_unlock(&dcache_lock); return item; -- cgit v1.2.3