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author | Arnd Bergmann <arnd@relay.de.ibm.com> | 2010-08-12 03:13:57 (GMT) |
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committer | Alasdair G Kergon <agk@redhat.com> | 2010-08-12 03:13:57 (GMT) |
commit | 402ab352c2c00ba8f90c724565f8cf31210d99cf (patch) | |
tree | d24566917708f1624a7af33bc049aa5dfb24e96c | |
parent | 3f77316de0ec0fd208467fbee8d9edc70e2c73b2 (diff) | |
download | linux-402ab352c2c00ba8f90c724565f8cf31210d99cf.tar.xz |
dm ioctl: use nonseekable_open
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 <arnd@arndb.de>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
-rw-r--r-- | drivers/md/dm-ioctl.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index feb64d6..3fd8f0e 100644 --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -1602,6 +1602,7 @@ 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, |