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author | Al Viro <viro@zeniv.linux.org.uk> | 2016-01-22 15:40:57 -0500 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-01-22 18:04:28 -0500 |
commit | 5955102c9984fa081b2d570cfac75c97eecf8f3b (patch) | |
tree | a4744386eac4b916e847eb4eedfada158f6527b4 /net/sunrpc/cache.c | |
parent | 57b8f112cfe6622ddddb8c2641206bb5fa8a112d (diff) | |
download | blackbird-op-linux-5955102c9984fa081b2d570cfac75c97eecf8f3b.tar.gz blackbird-op-linux-5955102c9984fa081b2d570cfac75c97eecf8f3b.zip |
wrappers for ->i_mutex access
parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested},
inode_foo(inode) being mutex_foo(&inode->i_mutex).
Please, use those for access to ->i_mutex; over the coming cycle
->i_mutex will become rwsem, with ->lookup() done with it held
only shared.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'net/sunrpc/cache.c')
-rw-r--r-- | net/sunrpc/cache.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c index 5e4f815c2b34..2b32fd602669 100644 --- a/net/sunrpc/cache.c +++ b/net/sunrpc/cache.c @@ -771,7 +771,7 @@ static ssize_t cache_read(struct file *filp, char __user *buf, size_t count, if (count == 0) return 0; - mutex_lock(&inode->i_mutex); /* protect against multiple concurrent + inode_lock(inode); /* protect against multiple concurrent * readers on this file */ again: spin_lock(&queue_lock); @@ -784,7 +784,7 @@ static ssize_t cache_read(struct file *filp, char __user *buf, size_t count, } if (rp->q.list.next == &cd->queue) { spin_unlock(&queue_lock); - mutex_unlock(&inode->i_mutex); + inode_unlock(inode); WARN_ON_ONCE(rp->offset); return 0; } @@ -838,7 +838,7 @@ static ssize_t cache_read(struct file *filp, char __user *buf, size_t count, } if (err == -EAGAIN) goto again; - mutex_unlock(&inode->i_mutex); + inode_unlock(inode); return err ? err : count; } @@ -909,9 +909,9 @@ static ssize_t cache_write(struct file *filp, const char __user *buf, if (!cd->cache_parse) goto out; - mutex_lock(&inode->i_mutex); + inode_lock(inode); ret = cache_downcall(mapping, buf, count, cd); - mutex_unlock(&inode->i_mutex); + inode_unlock(inode); out: return ret; } |