diff options
| author | Andi Kleen <ak@suse.de> | 2008-02-27 14:50:09 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-02-27 14:50:09 -0500 |
| commit | 6a382e3a4b9553942b51c78a3c892a6383fbd335 (patch) | |
| tree | 197e244b0cd3209bb0cf09e256310a351c822353 /fs | |
| parent | cabbf027b411fe5f9593f41d8161722293eae243 (diff) | |
Convert ext4 to use unlocked_ioctl v2
I checked ext4_ioctl and it looked largely safe to not be used
without BKL. So convert it over to unlocked_ioctl.
Signed-off-by: Andi Kleen <ak@suse.de>
v1->v2: drop BKL for online grow. resize.c seems to do enough locking
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/dir.c | 2 | ||||
| -rw-r--r-- | fs/ext4/file.c | 2 | ||||
| -rw-r--r-- | fs/ext4/ioctl.c | 12 |
3 files changed, 5 insertions, 11 deletions
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c index 2c23bade9aa6..88c97f7312be 100644 --- a/fs/ext4/dir.c +++ b/fs/ext4/dir.c @@ -42,7 +42,7 @@ const struct file_operations ext4_dir_operations = { .llseek = generic_file_llseek, .read = generic_read_dir, .readdir = ext4_readdir, /* we take BKL. needed?*/ - .ioctl = ext4_ioctl, /* BKL held */ + .unlocked_ioctl = ext4_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = ext4_compat_ioctl, #endif diff --git a/fs/ext4/file.c b/fs/ext4/file.c index ac35ec58db55..20507a24506a 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -129,7 +129,7 @@ const struct file_operations ext4_file_operations = { .write = do_sync_write, .aio_read = generic_file_aio_read, .aio_write = ext4_file_write, - .ioctl = ext4_ioctl, + .unlocked_ioctl = ext4_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = ext4_compat_ioctl, #endif diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index 2ed7c37f897e..53a010bb0483 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -17,9 +17,9 @@ #include <linux/smp_lock.h> #include <asm/uaccess.h> -int ext4_ioctl (struct inode * inode, struct file * filp, unsigned int cmd, - unsigned long arg) +long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { + struct inode *inode = filp->f_dentry->d_inode; struct ext4_inode_info *ei = EXT4_I(inode); unsigned int flags; unsigned short rsv_window_size; @@ -265,9 +265,6 @@ flags_err: #ifdef CONFIG_COMPAT long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - struct inode *inode = file->f_path.dentry->d_inode; - int ret; - /* These are just misnamed, they actually get/put from/to user an int */ switch (cmd) { case EXT4_IOC32_GETFLAGS: @@ -307,9 +304,6 @@ long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) default: return -ENOIOCTLCMD; } - lock_kernel(); - ret = ext4_ioctl(inode, file, cmd, (unsigned long) compat_ptr(arg)); - unlock_kernel(); - return ret; + return ext4_ioctl(file, cmd, (unsigned long) compat_ptr(arg)); } #endif |