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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2010-05-19 15:08:17 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2010-05-22 17:44:19 +0200 |
| commit | 674b604cdd389252d89a14133b6ebf80165d1d55 (patch) | |
| tree | 249bc1db46d63b6104474c937ad5a15b70cbfe02 | |
| parent | 3663df70c028bc435d6f2ec532a4849db62d1656 (diff) | |
| download | linux-674b604cdd389252d89a14133b6ebf80165d1d55.tar.gz linux-674b604cdd389252d89a14133b6ebf80165d1d55.tar.bz2 linux-674b604cdd389252d89a14133b6ebf80165d1d55.zip | |
sunrpc: Pushdown the bkl from ioctl
Pushdown the bkl to rpc_pipe_ioctl.
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>
| -rw-r--r-- | net/sunrpc/rpc_pipe.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index 20e30c6f8355..95ccbcf45d3e 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -27,6 +27,7 @@ #include <linux/workqueue.h> #include <linux/sunrpc/rpc_pipe_fs.h> #include <linux/sunrpc/cache.h> +#include <linux/smp_lock.h> static struct vfsmount *rpc_mount __read_mostly; static int rpc_mount_count; @@ -309,8 +310,7 @@ rpc_pipe_poll(struct file *filp, struct poll_table_struct *wait) } static int -rpc_pipe_ioctl(struct inode *ino, struct file *filp, - unsigned int cmd, unsigned long arg) +rpc_pipe_ioctl_unlocked(struct file *filp, unsigned int cmd, unsigned long arg) { struct rpc_inode *rpci = RPC_I(filp->f_path.dentry->d_inode); int len; @@ -331,13 +331,25 @@ rpc_pipe_ioctl(struct inode *ino, struct file *filp, } } +static long +rpc_pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) +{ + long ret; + + lock_kernel(); + ret = rpc_pipe_ioctl_unlocked(filp, cmd, arg); + unlock_kernel(); + + return ret; +} + static const struct file_operations rpc_pipe_fops = { .owner = THIS_MODULE, .llseek = no_llseek, .read = rpc_pipe_read, .write = rpc_pipe_write, .poll = rpc_pipe_poll, - .ioctl = rpc_pipe_ioctl, + .unlocked_ioctl = rpc_pipe_ioctl, .open = rpc_pipe_open, .release = rpc_pipe_release, }; |