From: Al Viro <[email protected]> 3.12-stable review patch. If anyone has any objections, please let me know.
=============== commit b4f0354e968f5fabd39bc85b99fedae4a97589fe upstream. The part of old d_free() that dealt with actual freeing of dentry. Taken out of dentry_kill() into a separate function. Signed-off-by: Al Viro <[email protected]> Signed-off-by: Jiri Slaby <[email protected]> --- fs/dcache.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/fs/dcache.c b/fs/dcache.c index 533a44b8e021..362aa79c90b3 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -274,6 +274,15 @@ static void __d_free(struct rcu_head *head) kmem_cache_free(dentry_cache, dentry); } +static void dentry_free(struct dentry *dentry) +{ + /* if dentry was never visible to RCU, immediate free is OK */ + if (!(dentry->d_flags & DCACHE_RCUACCESS)) + __d_free(&dentry->d_u.d_rcu); + else + call_rcu(&dentry->d_u.d_rcu, __d_free); +} + /** * dentry_rcuwalk_barrier - invalidate in-progress rcu-walk lookups * @dentry: the target dentry @@ -535,11 +544,7 @@ relock: if (dentry->d_op && dentry->d_op->d_release) dentry->d_op->d_release(dentry); - /* if dentry was never visible to RCU, immediate free is OK */ - if (!(dentry->d_flags & DCACHE_RCUACCESS)) - __d_free(&dentry->d_u.d_rcu); - else - call_rcu(&dentry->d_u.d_rcu, __d_free); + dentry_free(dentry); return parent; } -- 2.1.2 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
