Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-10 14:11:52 +00:00
Code Issues Packages Projects Releases Wiki Activity

btrfs: remove no longer used EXTENT_MAP_DELALLOC block start value

Browse Source 
After commit ac3c0d36a2 ("btrfs: make fiemap more efficient and accurate
reporting extent sharedness") we no longer need to create special extent
maps during fiemap that have a block start with the EXTENT_MAP_DELALLOC
value. So this block start value for extent maps is no longer used since
then, therefore remove it.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Filipe Manana 2023-11-23 23:53:51 +00:00 committed by David Sterba
parent 397239ed6a
commit 3c0e918b8f
4 changed files with 2 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
fs/btrfs/defrag.c
View File

@ -996,9 +996,8 @@ static int defrag_collect_targets(struct btrfs_inode *inode,
em->len <= inode->root->fs_info->max_inline)
goto next;
/* Skip hole/delalloc/preallocated extents */
/* Skip holes and preallocated extents. */
if (em->block_start == EXTENT_MAP_HOLE ||
em->block_start == EXTENT_MAP_DELALLOC ||
test_bit(EXTENT_FLAG_PREALLOC, &em->flags))
goto next;

3
fs/btrfs/extent_map.c
View File

@ -212,9 +212,6 @@ static int mergable_maps(struct extent_map *prev, struct extent_map *next)
if (!list_empty(&prev->list) || !list_empty(&next->list))
return 0;
ASSERT(next->block_start != EXTENT_MAP_DELALLOC &&
prev->block_start != EXTENT_MAP_DELALLOC);
if (extent_map_end(prev) == next->start &&
prev->flags == next->flags &&
((next->block_start == EXTENT_MAP_HOLE &&

2
fs/btrfs/extent_map.h
View File

@ -9,8 +9,6 @@
#define EXTENT_MAP_LAST_BYTE ((u64)-4)
#define EXTENT_MAP_HOLE ((u64)-3)
#define EXTENT_MAP_INLINE ((u64)-2)
/* used only during fiemap calls */
#define EXTENT_MAP_DELALLOC ((u64)-1)
/* bits for the extent_map::flags field */
enum {

3
include/trace/events/btrfs.h
View File

@ -265,8 +265,7 @@ DEFINE_EVENT(btrfs__inode, btrfs_inode_evict,
__print_symbolic_u64(type, \
{ EXTENT_MAP_LAST_BYTE, "LAST_BYTE" }, \
{ EXTENT_MAP_HOLE, "HOLE" }, \
{ EXTENT_MAP_INLINE, "INLINE" }, \
{ EXTENT_MAP_DELALLOC, "DELALLOC" })
{ EXTENT_MAP_INLINE, "INLINE" })
#define show_map_type(type) \
type, (type >= EXTENT_MAP_LAST_BYTE) ? "-" : __show_map_type(type)