diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2010-05-17 08:13:47 +0900 |
|---|---|---|
| committer | OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> | 2010-05-17 08:16:12 +0900 |
| commit | 7845bc3e132605e3e8a1f37748e29281164b65f5 (patch) | |
| tree | a6437b673ed42e498fd89917ac3e0aa9a5fb678e /fs/fat/file.c | |
| parent | 1bdb6f9199def1c3538c18089e499f5df5ff1747 (diff) | |
fat: convert to unlocked_ioctl
FAT does not require the BKL in its ioctl function, which is already serialized
through a mutex. Since we're already touching the ioctl code, also fix the
missing handling of FAT_IOCTL_GET_ATTRIBUTES in the compat code.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Diffstat (limited to 'fs/fat/file.c')
| -rw-r--r-- | fs/fat/file.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/fs/fat/file.c b/fs/fat/file.c index e8c159de236..a14c2f6a489 100644 --- a/fs/fat/file.c +++ b/fs/fat/file.c @@ -8,6 +8,7 @@ #include <linux/capability.h> #include <linux/module.h> +#include <linux/compat.h> #include <linux/mount.h> #include <linux/time.h> #include <linux/buffer_head.h> @@ -114,9 +115,9 @@ out: return err; } -int fat_generic_ioctl(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) +long fat_generic_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { + struct inode *inode = filp->f_path.dentry->d_inode; u32 __user *user_attr = (u32 __user *)arg; switch (cmd) { @@ -129,6 +130,15 @@ int fat_generic_ioctl(struct inode *inode, struct file *filp, } } +#ifdef CONFIG_COMPAT +static long fat_generic_compat_ioctl(struct file *filp, unsigned int cmd, + unsigned long arg) + +{ + return fat_generic_ioctl(filp, cmd, (unsigned long)compat_ptr(arg)); +} +#endif + static int fat_file_release(struct inode *inode, struct file *filp) { if ((filp->f_mode & FMODE_WRITE) && @@ -159,7 +169,10 @@ const struct file_operations fat_file_operations = { .aio_write = generic_file_aio_write, .mmap = generic_file_mmap, .release = fat_file_release, - .ioctl = fat_generic_ioctl, + .unlocked_ioctl = fat_generic_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = fat_generic_compat_ioctl, +#endif .fsync = fat_file_fsync, .splice_read = generic_file_splice_read, }; |