https://bugzilla.kernel.org/show_bug.cgi?id=16165 --- Comment #12 from Eric Sandeen <sandeen@xxxxxxxxxx> 2010-06-18 15:30:13 --- Can those who can reproduce this test this patch from mingming? When unaligned DIO writes, skip zero out the block if the buffer is marked unwritten. That means there is an asynconous direct IO (append or fill the hole) still pending. Signed-off-by: Mingming Cao <cmm@xxxxxxxxxx> --- fs/direct-io.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) Index: linux-git/fs/direct-io.c =================================================================== --- linux-git.orig/fs/direct-io.c 2010-05-07 15:42:22.855033403 -0700 +++ linux-git/fs/direct-io.c 2010-05-07 15:44:17.695007770 -0700 @@ -740,7 +740,8 @@ struct page *page; dio->start_zero_done = 1; - if (!dio->blkfactor || !buffer_new(&dio->map_bh)) + if (!dio->blkfactor || !buffer_new(&dio->map_bh) + || buffer_unwritten(&dio->map_bh)) return; dio_blocks_per_fs_block = 1 << dio->blkfactor; -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
