Commit acee08aa authored by Dennis Zhou's avatar Dennis Zhou Committed by David Sterba

btrfs: fix btrfs_submit_compressed_write cgroup attribution

This restores the logic from commit 46bcff2b ("btrfs: fix compressed
write bio blkcg attribution") which added cgroup attribution to btrfs
writeback. It also adds back the REQ_CGROUP_PUNT flag for these ios.

Fixes: 91507240 ("btrfs: determine stripe boundary at bio allocation time in btrfs_submit_compressed_write")
CC: stable@vger.kernel.org # 5.16+
Signed-off-by: default avatarDennis Zhou <dennis@kernel.org>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 168a2f77
......@@ -537,6 +537,9 @@ blk_status_t btrfs_submit_compressed_write(struct btrfs_inode *inode, u64 start,
cb->orig_bio = NULL;
cb->nr_pages = nr_pages;
if (blkcg_css)
kthread_associate_blkcg(blkcg_css);
while (cur_disk_bytenr < disk_start + compressed_len) {
u64 offset = cur_disk_bytenr - disk_start;
unsigned int index = offset >> PAGE_SHIFT;
......@@ -555,6 +558,8 @@ blk_status_t btrfs_submit_compressed_write(struct btrfs_inode *inode, u64 start,
bio = NULL;
goto finish_cb;
}
if (blkcg_css)
bio->bi_opf |= REQ_CGROUP_PUNT;
}
/*
* We should never reach next_stripe_start start as we will
......@@ -612,6 +617,9 @@ blk_status_t btrfs_submit_compressed_write(struct btrfs_inode *inode, u64 start,
return 0;
finish_cb:
if (blkcg_css)
kthread_associate_blkcg(NULL);
if (bio) {
bio->bi_status = ret;
bio_endio(bio);
......
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