Commit cbf44cd9 authored by Johannes Thumshirn's avatar Johannes Thumshirn Committed by David Sterba
Browse files

btrfs: rename EXTENT_BUFFER_NO_CHECK to EXTENT_BUFFER_ZONED_ZEROOUT 



EXTENT_BUFFER_ZONED_ZEROOUT better describes the state of the extent buffer,
namely it is written as all zeros. This is needed in zoned mode, to
preserve I/O ordering.

Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarJosef Bacik <josef@toxicpanda.com>
Signed-off-by: default avatarJohannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 738290c0

fs/btrfs/disk-io.c

+1 −1
Original line number Diff line number Diff line
@@ -254,7 +254,7 @@ blk_status_t btree_csum_one_bio(struct btrfs_bio *bbio) 
	if (WARN_ON_ONCE(bbio->bio.bi_iter.bi_size != eb->len))

		return BLK_STS_IOERR;



	if (test_bit(EXTENT_BUFFER_NO_CHECK, &eb->bflags)) {

	if (test_bit(EXTENT_BUFFER_ZONED_ZEROOUT, &eb->bflags)) {

		WARN_ON_ONCE(found_start != 0);

		return BLK_STS_OK;

	}

fs/btrfs/extent-tree.c

+1 −1
Original line number Diff line number Diff line
@@ -5061,7 +5061,7 @@ btrfs_init_new_buffer(struct btrfs_trans_handle *trans, struct btrfs_root *root, 
	__btrfs_tree_lock(buf, nest);

	btrfs_clear_buffer_dirty(trans, buf);

	clear_bit(EXTENT_BUFFER_STALE, &buf->bflags);

	clear_bit(EXTENT_BUFFER_NO_CHECK, &buf->bflags);

	clear_bit(EXTENT_BUFFER_ZONED_ZEROOUT, &buf->bflags);



	set_extent_buffer_uptodate(buf);

fs/btrfs/extent_io.c

+1 −1
Original line number Diff line number Diff line
@@ -4152,7 +4152,7 @@ static void __write_extent_buffer(const struct extent_buffer *eb, 
	/* For unmapped (dummy) ebs, no need to check their uptodate status. */

	const bool check_uptodate = !test_bit(EXTENT_BUFFER_UNMAPPED, &eb->bflags);



	WARN_ON(test_bit(EXTENT_BUFFER_NO_CHECK, &eb->bflags));

	WARN_ON(test_bit(EXTENT_BUFFER_ZONED_ZEROOUT, &eb->bflags));



	if (check_eb_range(eb, start, len))

		return;

fs/btrfs/extent_io.h

+2 −1
Original line number Diff line number Diff line
@@ -28,7 +28,8 @@ enum { 
	EXTENT_BUFFER_IN_TREE,

	/* write IO error */

	EXTENT_BUFFER_WRITE_ERR,

	EXTENT_BUFFER_NO_CHECK,

	/* Indicate the extent buffer is written zeroed out (for zoned) */

	EXTENT_BUFFER_ZONED_ZEROOUT,

	/* Indicate that extent buffer pages a being read */

	EXTENT_BUFFER_READING,

};

fs/btrfs/zoned.c

+1 −1
Original line number Diff line number Diff line
@@ -1716,7 +1716,7 @@ void btrfs_redirty_list_add(struct btrfs_transaction *trans, 
	ASSERT(!test_bit(EXTENT_BUFFER_DIRTY, &eb->bflags));



	memzero_extent_buffer(eb, 0, eb->len);

	set_bit(EXTENT_BUFFER_NO_CHECK, &eb->bflags);

	set_bit(EXTENT_BUFFER_ZONED_ZEROOUT, &eb->bflags);

	set_extent_buffer_dirty(eb);

	set_extent_bit(&trans->dirty_pages, eb->start, eb->start + eb->len - 1,

			EXTENT_DIRTY, NULL);