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new helper: dentry_free() 

The part of old d_free() is that dealt with actual freeing of dentry.
Taken out of dentry_kill() into a separate function.

Git-repo: https://github.com/torvalds/linux.git
Git-commit: b4f0354e968f5fabd39bc85b99fedae4a97589fe
Change-Id: I4b16554b6f6acc558d299ca3282eebf93612d8a9
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Ankit Jain <jankit@codeaurora.org>
Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org>
This commit is contained in:
Al Viro 2014-04-29 23:40:14 -04:00 committed by syphyr
parent 4c8c23684b
commit 51466b3afe
1 changed files with 10 additions and 5 deletions
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15
fs/dcache.c
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@ -220,6 +220,15 @@ 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);
}
/*
* no locks, please.
*/
@ -231,11 +240,7 @@ static void d_free(struct dentry *dentry)
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);
}
void take_dentry_name_snapshot(struct name_snapshot *name, struct dentry *dentry)