dm: Use nonseekable_open
PATCH 1/1 dm: Use nonseekable_open
From: Arnd Bergmann <[email protected]>
The dm control device does not implement read/write, so it has no use for seeking. Using no_llseek prevents falling back to default_llseek, which requires the BKL.
Signed-off-by Arnd Bergmann <[email protected]>
Cc Alasdair G Kergon <[email protected]>
[drop useless llseek = no_llseek]
Signed-off-by Frederic Weisbecker <[email protected]>
--- drivers/md/dm-ioctl.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
drivers/md/dm-ioctl.c +1 -0
@@ -1593,6 +1593,7 @@ static long dm_compat_ctl_ioctl(struct file *file, uint command, ulong u)#endif static const struct file_operations _ctl_fops = { + .open = nonseekable_open, .unlocked_ioctl = dm_ctl_ioctl, .compat_ioctl = dm_compat_ctl_ioctl, .owner =THIS_MODULE ,
Signature · 1 line
1.6.2.3