loop: Push lo_ctl_mutex down into individual ioctls

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commit a13165441d upstream.

Push acquisition of lo_ctl_mutex down into individual ioctl handling
branches. This is a preparatory step for pushing the lock down into
individual ioctl handling functions so that they can release the lock as
they need it. We also factor out some simple ioctl handlers that will
not need any special handling to reduce unnecessary code duplication.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jan Kara 2018-11-08 14:01:05 +01:00 • committed by Greg Kroah-Hartman

parent dc04196fae

commit 56b897daad

1 changed files with 63 additions and 25 deletions

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drivers/block/loop.c

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