diff options
author | John Kacur <jkacur@redhat.com> | 2010-05-05 17:15:37 +0400 |
---|---|---|
committer | Frederic Weisbecker <fweisbec@gmail.com> | 2010-05-17 07:27:42 +0400 |
commit | 93d84b6d99f5ddb911b318990c759a0fefa0f7ea (patch) | |
tree | 5fab098d57799d8889b0e419a5cd411d318a6b14 /fs/ncpfs/ioctl.c | |
parent | 1977bb2ed8ffdd161fe1c9eef1f9fd283e41d4b5 (diff) | |
download | linux-93d84b6d99f5ddb911b318990c759a0fefa0f7ea.tar.xz |
ncpfs: BKL ioctl pushdown
Convert ncp_ioctl to an unlocked_ioctl and push down the bkl into it.
Signed-off-by: John Kacur <jkacur@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Petr Vandrovec <vandrove@vc.cvut.cz>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'fs/ncpfs/ioctl.c')
-rw-r--r-- | fs/ncpfs/ioctl.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/fs/ncpfs/ioctl.c b/fs/ncpfs/ioctl.c index 60a5e2864ea8..023c03d02070 100644 --- a/fs/ncpfs/ioctl.c +++ b/fs/ncpfs/ioctl.c @@ -20,6 +20,7 @@ #include <linux/smp_lock.h> #include <linux/vmalloc.h> #include <linux/sched.h> +#include <linux/smp_lock.h> #include <linux/ncp_fs.h> @@ -261,9 +262,9 @@ ncp_get_charsets(struct ncp_server* server, struct ncp_nls_ioctl __user *arg) } #endif /* CONFIG_NCPFS_NLS */ -static int __ncp_ioctl(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) +static long __ncp_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { + struct inode *inode = filp->f_dentry->d_inode; struct ncp_server *server = NCP_SERVER(inode); int result; struct ncp_ioctl_request request; @@ -841,11 +842,11 @@ static int ncp_ioctl_need_write(unsigned int cmd) } } -int ncp_ioctl(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) +long ncp_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { - int ret; + long ret; + lock_kernel(); if (ncp_ioctl_need_write(cmd)) { /* * inside the ioctl(), any failures which @@ -853,24 +854,28 @@ int ncp_ioctl(struct inode *inode, struct file *filp, * -EACCESS, so it seems consistent to keep * that here. */ - if (mnt_want_write(filp->f_path.mnt)) - return -EACCES; + if (mnt_want_write(filp->f_path.mnt)) { + ret = -EACCES; + goto out; + } } - ret = __ncp_ioctl(inode, filp, cmd, arg); + ret = __ncp_ioctl(filp, cmd, arg); if (ncp_ioctl_need_write(cmd)) mnt_drop_write(filp->f_path.mnt); + +out: + unlock_kernel(); return ret; } #ifdef CONFIG_COMPAT long ncp_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - struct inode *inode = file->f_path.dentry->d_inode; - int ret; + long ret; lock_kernel(); arg = (unsigned long) compat_ptr(arg); - ret = ncp_ioctl(inode, file, cmd, arg); + ret = ncp_ioctl(file, cmd, arg); unlock_kernel(); return ret; } |