diff options
| author | Pavel Machek <pavel@suse.cz> | 2009-04-02 16:58:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-02 19:05:02 -0700 |
| commit | 1a2ad21128bb4eb79f3c05e5801edcc5ed3ef1d3 (patch) | |
| tree | ba5845f5e7f225b427d4ce250b911b9303aa9511 /kernel/cred-internals.h | |
| parent | 1b0f7ffd0ea27cd3a0b9ca04e3df9522048c32a3 (diff) | |
nbd: add locking to nbd_ioctl
The code was written to rely on big kernel lock to protect it from races.
It mostly works when interface is not abused.
So this uses tx_lock to protect data structures from concurrent use
between ioctl and worker threads.
Next step will be moving from ioctl to unlocked_ioctl.
[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: add missing return]
Signed-off-by: Pavel Machek <pavel@suse.cz>
Acked-by: Paul Clements <paul.clements@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/cred-internals.h')
0 files changed, 0 insertions, 0 deletions