This is a note to let you know that I've just added the patch titled
orangefs: Use RCU for destroy_inode
to the 4.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
orangefs-use-rcu-for-destroy_inode.patch
and it can be found in the queue-4.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0695d7dc1d9f19b82ec2cae24856bddce278cfe6 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Date: Fri, 24 Feb 2017 16:43:36 +0100
Subject: orangefs: Use RCU for destroy_inode
From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
commit 0695d7dc1d9f19b82ec2cae24856bddce278cfe6 upstream.
freeing of inodes must be RCU-delayed on all filesystems
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/orangefs/super.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
--- a/fs/orangefs/super.c
+++ b/fs/orangefs/super.c
@@ -115,6 +115,13 @@ static struct inode *orangefs_alloc_inod
return &orangefs_inode->vfs_inode;
}
+static void orangefs_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
+ kmem_cache_free(orangefs_inode_cache, orangefs_inode);
+}
+
static void orangefs_destroy_inode(struct inode *inode)
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
@@ -123,7 +130,7 @@ static void orangefs_destroy_inode(struc
"%s: deallocated %p destroying inode %pU\n",
__func__, orangefs_inode, get_khandle_from_ino(inode));
- kmem_cache_free(orangefs_inode_cache, orangefs_inode);
+ call_rcu(&inode->i_rcu, orangefs_i_callback);
}
/*
Patches currently in stable-queue which might be from peterz@xxxxxxxxxxxxx are
queue-4.10/orangefs-use-rcu-for-destroy_inode.patch