[PATCH 02/17] btrfs: stop tracking failed reads in the I/O tree

[Christoph Hellwig <hch@lst.de>]

There is a separate I/O failure tree to track the fail reads, so remove
the extra EXTENT_DAMAGED bit in the I/O tree.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 fs/btrfs/extent-io-tree.h        |  1 -
 fs/btrfs/extent_io.c             | 16 +---------------
 fs/btrfs/tests/extent-io-tests.c |  1 -
 include/trace/events/btrfs.h     |  1 -
 4 files changed, 1 insertion(+), 18 deletions(-)

diff --git a/fs/btrfs/extent-io-tree.h b/fs/btrfs/extent-io-tree.h
index ec2f8b8e6faa7..e218bb56d86ac 100644
--- a/fs/btrfs/extent-io-tree.h
+++ b/fs/btrfs/extent-io-tree.h
@@ -17,7 +17,6 @@ struct io_failure_record;
 #define EXTENT_NODATASUM	(1U << 7)
 #define EXTENT_CLEAR_META_RESV	(1U << 8)
 #define EXTENT_NEED_WAIT	(1U << 9)
-#define EXTENT_DAMAGED		(1U << 10)
 #define EXTENT_NORESERVE	(1U << 11)
 #define EXTENT_QGROUP_RESERVED	(1U << 12)
 #define EXTENT_CLEAR_DATA_RESV	(1U << 13)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 591c191a58bc9..6ac76534d2c9e 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2280,23 +2280,13 @@ int free_io_failure(struct extent_io_tree *failure_tree,
 		    struct io_failure_record *rec)
 {
 	int ret;
-	int err = 0;
 
 	set_state_failrec(failure_tree, rec->start, NULL);
 	ret = clear_extent_bits(failure_tree, rec->start,
 				rec->start + rec->len - 1,
 				EXTENT_LOCKED | EXTENT_DIRTY);
-	if (ret)
-		err = ret;
-
-	ret = clear_extent_bits(io_tree, rec->start,
-				rec->start + rec->len - 1,
-				EXTENT_DAMAGED);
-	if (ret && !err)
-		err = ret;
-
 	kfree(rec);
-	return err;
+	return ret;
 }
 
 /*
@@ -2521,7 +2511,6 @@ static struct io_failure_record *btrfs_get_io_failure_record(struct inode *inode
 	u64 start = bbio->file_offset + bio_offset;
 	struct io_failure_record *failrec;
 	struct extent_io_tree *failure_tree = &BTRFS_I(inode)->io_failure_tree;
-	struct extent_io_tree *tree = &BTRFS_I(inode)->io_tree;
 	const u32 sectorsize = fs_info->sectorsize;
 	int ret;
 
@@ -2573,9 +2562,6 @@ static struct io_failure_record *btrfs_get_io_failure_record(struct inode *inode
 			      EXTENT_LOCKED | EXTENT_DIRTY);
 	if (ret >= 0) {
 		ret = set_state_failrec(failure_tree, start, failrec);
-		/* Set the bits in the inode's tree */
-		ret = set_extent_bits(tree, start, start + sectorsize - 1,
-				      EXTENT_DAMAGED);
 	} else if (ret < 0) {
 		kfree(failrec);
 		return ERR_PTR(ret);
diff --git a/fs/btrfs/tests/extent-io-tests.c b/fs/btrfs/tests/extent-io-tests.c
index a232b15b8021f..ba4b7601e8c0a 100644
--- a/fs/btrfs/tests/extent-io-tests.c
+++ b/fs/btrfs/tests/extent-io-tests.c
@@ -80,7 +80,6 @@ static void extent_flag_to_str(const struct extent_state *state, char *dest)
 	PRINT_ONE_FLAG(state, dest, cur, NODATASUM);
 	PRINT_ONE_FLAG(state, dest, cur, CLEAR_META_RESV);
 	PRINT_ONE_FLAG(state, dest, cur, NEED_WAIT);
-	PRINT_ONE_FLAG(state, dest, cur, DAMAGED);
 	PRINT_ONE_FLAG(state, dest, cur, NORESERVE);
 	PRINT_ONE_FLAG(state, dest, cur, QGROUP_RESERVED);
 	PRINT_ONE_FLAG(state, dest, cur, CLEAR_DATA_RESV);
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index 73df80d462dc8..f8a4118b16574 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -154,7 +154,6 @@ FLUSH_STATES
 	{ EXTENT_NODATASUM,		"NODATASUM"},		\
 	{ EXTENT_CLEAR_META_RESV,	"CLEAR_META_RESV"},	\
 	{ EXTENT_NEED_WAIT,		"NEED_WAIT"},		\
-	{ EXTENT_DAMAGED,		"DAMAGED"},		\
 	{ EXTENT_NORESERVE,		"NORESERVE"},		\
 	{ EXTENT_QGROUP_RESERVED,	"QGROUP_RESERVED"},	\
 	{ EXTENT_CLEAR_DATA_RESV,	"CLEAR_DATA_RESV"},	\
-- 
2.30.2