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authorSasha Levin <sasha.levin@oracle.com>2016-01-07 17:49:51 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2016-01-09 02:57:21 -0500
commit8f5fed1e917588f946ad8882bd47a4093db0ff4c (patch)
tree8b13a8cb4d56e4442e1cb4cfe838e95dbce806f0 /fs/9p/cache.c
parent3cc4a84e026e8d61b7ffe4a7367ed09a555f2c5b (diff)
downloadlwn-8f5fed1e917588f946ad8882bd47a4093db0ff4c.tar.gz
lwn-8f5fed1e917588f946ad8882bd47a4093db0ff4c.zip
fs/9p: use fscache mutex rather than spinlock
We may sleep inside a the lock, so use a mutex rather than spinlock. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/9p/cache.c')
-rw-r--r--fs/9p/cache.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/9p/cache.c b/fs/9p/cache.c
index a69260f27555..103ca5e1267b 100644
--- a/fs/9p/cache.c
+++ b/fs/9p/cache.c
@@ -243,14 +243,14 @@ void v9fs_cache_inode_set_cookie(struct inode *inode, struct file *filp)
if (!v9inode->fscache)
return;
- spin_lock(&v9inode->fscache_lock);
+ mutex_lock(&v9inode->fscache_lock);
if ((filp->f_flags & O_ACCMODE) != O_RDONLY)
v9fs_cache_inode_flush_cookie(inode);
else
v9fs_cache_inode_get_cookie(inode);
- spin_unlock(&v9inode->fscache_lock);
+ mutex_unlock(&v9inode->fscache_lock);
}
void v9fs_cache_inode_reset_cookie(struct inode *inode)
@@ -264,7 +264,7 @@ void v9fs_cache_inode_reset_cookie(struct inode *inode)
old = v9inode->fscache;
- spin_lock(&v9inode->fscache_lock);
+ mutex_lock(&v9inode->fscache_lock);
fscache_relinquish_cookie(v9inode->fscache, 1);
v9ses = v9fs_inode2v9ses(inode);
@@ -274,7 +274,7 @@ void v9fs_cache_inode_reset_cookie(struct inode *inode)
p9_debug(P9_DEBUG_FSC, "inode %p revalidating cookie old %p new %p\n",
inode, old, v9inode->fscache);
- spin_unlock(&v9inode->fscache_lock);
+ mutex_unlock(&v9inode->fscache_lock);
}
int __v9fs_fscache_release_page(struct page *page, gfp_t gfp)