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author | Arnd Bergmann <arnd@arndb.de> | 2010-07-07 16:51:29 +0200 |
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committer | Jens Axboe <jaxboe@fusionio.com> | 2010-08-07 18:26:08 +0200 |
commit | 409f3499a2cfcd1e9c2857c53af7fcce069f027f (patch) | |
tree | 7275165954c7f1143d219f4b141888d6c0a5a4ab /drivers/message | |
parent | 15392efb9d427482754f6d267262452878667499 (diff) | |
download | kernel_samsung_tuna-409f3499a2cfcd1e9c2857c53af7fcce069f027f.zip kernel_samsung_tuna-409f3499a2cfcd1e9c2857c53af7fcce069f027f.tar.gz kernel_samsung_tuna-409f3499a2cfcd1e9c2857c53af7fcce069f027f.tar.bz2 |
scsi/sd: remove big kernel lock
Every user of the BKL in the sd driver is the
result of the pushdown from the block layer
into the open/close/ioctl functions.
The only place that used to rely on the BKL is
the sdkp->openers variable, which gets converted
into an atomic_t.
Nothing else seems to rely on the BKL, since the
functions do not touch global data without holding
another lock, and the open/close functions are
still protected from concurrent execution using
the bdev->bd_mutex.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: linux-scsi@vger.kernel.org
Cc: "James E.J. Bottomley" <James.Bottomley@suse.de>
Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'drivers/message')
0 files changed, 0 insertions, 0 deletions