Re: [PATCH] block: update locking context for blk_free_devt

From: Jens Axboe
Date: Mon Oct 13 2014 - 16:19:08 EST


On 2014-10-13 12:35, Dmitry Monakhov wrote:
After 2da78092 this function will not longer sleepy

Signed-off-by: Dmitry Monakhov <dmonakhov@xxxxxxxxxx>
---
block/genhd.c | 4 +---
1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/block/genhd.c b/block/genhd.c
index 09da5e4..ae9aaa5 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -441,12 +441,10 @@ int blk_alloc_devt(struct hd_struct *part, dev_t *devt)
* Free @devt which was allocated using blk_alloc_devt().
*
* CONTEXT:
- * Might sleep.
+ * Don't care.
*/
void blk_free_devt(dev_t devt)
{
- might_sleep();
-
if (devt == MKDEV(0, 0))
return;

What's this against? The might_sleep() was killed about a month ago by commit 46f341ffcfb5. The comment wasn't updated though, it should be.

--
Jens Axboe

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