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authorFrederic Weisbecker <fweisbec@gmail.com>2010-05-19 15:08:17 +0200
committerFrederic Weisbecker <fweisbec@gmail.com>2010-05-22 17:44:20 +0200
commit9918ff26b301e9a57f25fb12b44a46ad0c1e8f8f (patch)
tree1b9795fc5d6e7f085b48d8a3cd853a5668f772d5 /net/sunrpc/cache.c
parent674b604cdd389252d89a14133b6ebf80165d1d55 (diff)
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sunrpc: Pushdown the bkl from sunrpc cache ioctl
Pushdown the bkl to cache_ioctl_pipefs. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Neil Brown <neilb@suse.de> Cc: Nfs <linux-nfs@vger.kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: John Kacur <jkacur@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'net/sunrpc/cache.c')
-rw-r--r--net/sunrpc/cache.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 39bddba53ba..91b1adec0d6 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -33,6 +33,7 @@
#include <linux/sunrpc/cache.h>
#include <linux/sunrpc/stats.h>
#include <linux/sunrpc/rpc_pipe_fs.h>
+#include <linux/smp_lock.h>
#define RPCDBG_FACILITY RPCDBG_CACHE
@@ -1525,12 +1526,18 @@ static unsigned int cache_poll_pipefs(struct file *filp, poll_table *wait)
return cache_poll(filp, wait, cd);
}
-static int cache_ioctl_pipefs(struct inode *inode, struct file *filp,
+static long cache_ioctl_pipefs(struct file *filp,
unsigned int cmd, unsigned long arg)
{
+ struct inode *inode = filp->f_dentry->d_inode;
struct cache_detail *cd = RPC_I(inode)->private;
+ long ret;
- return cache_ioctl(inode, filp, cmd, arg, cd);
+ lock_kernel();
+ ret = cache_ioctl(inode, filp, cmd, arg, cd);
+ unlock_kernel();
+
+ return ret;
}
static int cache_open_pipefs(struct inode *inode, struct file *filp)
@@ -1553,7 +1560,7 @@ const struct file_operations cache_file_operations_pipefs = {
.read = cache_read_pipefs,
.write = cache_write_pipefs,
.poll = cache_poll_pipefs,
- .ioctl = cache_ioctl_pipefs, /* for FIONREAD */
+ .unlocked_ioctl = cache_ioctl_pipefs, /* for FIONREAD */
.open = cache_open_pipefs,
.release = cache_release_pipefs,
};