2014-08-21 오전 7:02, Jan Kara 쓴 글:

On Wed 20-08-14 11:38:10, Gioh Kim wrote:

quoted

quoted

quoted

quoted

quoted

@@ -1381,12 +1383,7 @@ EXPORT_SYMBOL(__find_get_block);
  struct buffer_head *
  __getblk(struct block_device *bdev, sector_t block, unsigned size)
  {
-       struct buffer_head *bh = __find_get_block(bdev, block, size);
-
-       might_sleep();
-       if (bh == NULL)
-               bh = __getblk_slow(bdev, block, size);
-       return bh;
+       return __getblk_gfp(bdev, block, size, __GFP_MOVABLE);
  }
  EXPORT_SYMBOL(__getblk);

   Why did you remove the __find_get_block() call? That looks like a bug.

   I'm not sure if you didn't miss this comment....

I'm sorry I missed it.
I think calling __find_get_block() in __getblk_gfp() can replace it.
I'm not sure about it.

If anybody disagree with it, I'll change it as the original code.

   OK, I see. Thanks for explanation. I agree we can remove
__find_get_block() from __getblk() but please make this change a separate
patch and also please put the might_sleep() check __getblk_gfp().

								Honza

I got it.
I'm going to report v3 patch that reverts __getblk() and adds sb_bread_unmovable(),
if Andrew give me a feedback about the other codes.
I can wait ;-)

--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html