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block: don't take lock on changing ra_pages
[linux-2.6-block.git]
/
block
/
ioctl.c
diff --git
a/block/ioctl.c
b/block/ioctl.c
index d03985b04d6768bd0966c3c75f27b6a1336ede1b..0f22e629b13c8e93bf46401c0913605b5d2cbfba 100644
(file)
--- a/
block/ioctl.c
+++ b/
block/ioctl.c
@@
-323,9
+323,7
@@
int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
bdi = blk_get_backing_dev_info(bdev);
if (bdi == NULL)
return -ENOTTY;
- lock_kernel();
bdi->ra_pages = (arg * 512) / PAGE_CACHE_SIZE;
- unlock_kernel();
return 0;
case BLKBSZSET:
/* set the logical block size */