]> git.ipfire.org Git - thirdparty/kernel/stable-queue.git/commitdiff
3.14-stable patches
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 14 Aug 2015 16:49:17 +0000 (09:49 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 14 Aug 2015 16:49:17 +0000 (09:49 -0700)
added patches:
new-helper-dentry_free.patch

queue-3.14/new-helper-dentry_free.patch [new file with mode: 0644]
queue-3.14/series

diff --git a/queue-3.14/new-helper-dentry_free.patch b/queue-3.14/new-helper-dentry_free.patch
new file mode 100644 (file)
index 0000000..2b3bc41
--- /dev/null
@@ -0,0 +1,51 @@
+From b4f0354e968f5fabd39bc85b99fedae4a97589fe Mon Sep 17 00:00:00 2001
+From: Al Viro <viro@zeniv.linux.org.uk>
+Date: Tue, 29 Apr 2014 23:40:14 -0400
+Subject: new helper: dentry_free()
+
+From: Al Viro <viro@zeniv.linux.org.uk>
+
+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 <viro@zeniv.linux.org.uk>
+Cc: "Nicholas A. Bellinger" <nab@linux-iscsi.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ fs/dcache.c |   15 ++++++++++-----
+ 1 file changed, 10 insertions(+), 5 deletions(-)
+
+--- a/fs/dcache.c
++++ b/fs/dcache.c
+@@ -244,6 +244,15 @@ static void __d_free(struct rcu_head *he
+       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
+@@ -511,11 +520,7 @@ 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;
+ }
index faaa532ba6f69d469ace63db9ba2b7f3b0717cce..c26b1f3a7a85ef40a8ed1aeca6b7985b5a61219c 100644 (file)
@@ -32,3 +32,4 @@ signal-fix-information-leak-in-copy_siginfo_to_user.patch
 signal-fix-information-leak-in-copy_siginfo_from_user32.patch
 fold-d_kill-and-d_free.patch
 fold-try_prune_one_dentry.patch
+new-helper-dentry_free.patch