]> git.baikalelectronics.ru Git - kernel.git/commit
btrfs: make btrfs_truncate_block() to be subpage compatible
authorQu Wenruo <wqu@suse.com>
Mon, 31 May 2021 08:50:51 +0000 (16:50 +0800)
committerDavid Sterba <dsterba@suse.com>
Mon, 21 Jun 2021 13:19:10 +0000 (15:19 +0200)
commit6c9ac8be458152a6316cf28fcd52c7f38f7ec8ec
tree7771609c12c6b4956ecb5a97aef436f67d9636d7
parentc5ef5c6c733a087fc3f8b298010d7e6911bff1e3
btrfs: make btrfs_truncate_block() to be subpage compatible

btrfs_truncate_block() itself is already mostly subpage compatible, the
only missing part is the page dirtying code.

Currently if we have a sector that needs to be truncated, we set the
sector aligned range delalloc, then set the full page dirty.

The problem is, current subpage code requires subpage dirty bit to be
set, or __extent_writepage_io() won't submit bio, thus leads to ordered
extent never to finish.

So this patch will make btrfs_truncate_block() to call
btrfs_page_set_dirty() helper to replace set_page_dirty() to fix the
problem.

Tested-by: Ritesh Harjani <riteshh@linux.ibm.com> # [ppc64]
Tested-by: Anand Jain <anand.jain@oracle.com> # [aarch64]
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/inode.c