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Groups > linux.kernel > #1599114
| From | Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 4.9 25/63] orangefs: Use RCU for destroy_inode |
| Date | 2017-03-13 10:20 +0100 |
| Message-ID | <tkuj2-6OF-69@gated-at.bofh.it> (permalink) |
| References | <tktPX-6ks-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Peter Zijlstra <peterz@infradead.org>
commit 0695d7dc1d9f19b82ec2cae24856bddce278cfe6 upstream.
freeing of inodes must be RCU-delayed on all filesystems
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
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);
}
/*
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[PATCH 4.9 00/63] 4.9.15-stable review Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-03-13 10:20 +0100 [PATCH 4.9 43/63] drm/ast: Fix test for VGA enabled Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-03-13 10:20 +0100 [PATCH 4.9 13/63] net: mvpp2: fix DMA address calculation in mvpp2_txq_inc_put() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-03-13 10:20 +0100 [PATCH 4.9 16/63] brcmfmac: fix incorrect event channel deduction Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-03-13 10:20 +0100 [PATCH 4.9 25/63] orangefs: Use RCU for destroy_inode Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-03-13 10:20 +0100 Re: [PATCH 4.9 00/63] 4.9.15-stable review Guenter Roeck <linux@roeck-us.net> - 2017-03-13 23:40 +0100
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