On Wed, 2017-07-26 at 10:11 -0700, Matthew Wilcox wrote:
On Wed, Jul 26, 2017 at 06:23:08PM +0900, OGAWA Hirofumi wrote:
> The locking of this path seems to be broken. The guy familiar to
> bdev_write_page() path will made real fix though, The following
> patch should be explaining enough what is wrong.
> In short, clean_buffers() must be called before unlocking
Thanks for that. This should fix the problem while not leaking the
unlock_page call outside bdev_write_page.
--- 8< ---
Signed-off-by: Matthew Wilcox <mawilcox(a)microsoft.com>
Thanks Willy and Hirofumi for the quick fix! I've tested the change,
and it works fine.
Tested-by: Toshi Kani <toshi.kani(a)hpe.com>
Out of curiosity, I am still wondering about the following:
- Why is this issue exposed with FAT FS, but not with other FSs?
- Why did I not see this issue with BTT?