[PATCH v4 11/12] ext4: make ext4_es_insert_extent() return void

From: Baokun Li
Date: Sun Apr 23 2023 - 23:40:20 EST


Now ext4_es_insert_extent() never return error, so make it return void.

Signed-off-by: Baokun Li <libaokun1@xxxxxxxxxx>
---
fs/ext4/extents.c | 5 +++--
fs/ext4/extents_status.c | 14 ++++++--------
fs/ext4/extents_status.h | 6 +++---
fs/ext4/inode.c | 21 ++++++---------------
4 files changed, 18 insertions(+), 28 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index e6695fec59af..d555ed924f37 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3136,8 +3136,9 @@ static int ext4_zeroout_es(struct inode *inode, struct ext4_extent *ex)
if (ee_len == 0)
return 0;

- return ext4_es_insert_extent(inode, ee_block, ee_len, ee_pblock,
- EXTENT_STATUS_WRITTEN);
+ ext4_es_insert_extent(inode, ee_block, ee_len, ee_pblock,
+ EXTENT_STATUS_WRITTEN);
+ return 0;
}

/* FIXME!! we need to try to merge to left or right after zero-out */
diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index b12c5cfdf601..fcbfd2f26650 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -831,12 +831,10 @@ static int __es_insert_extent(struct inode *inode, struct extent_status *newes,
/*
* ext4_es_insert_extent() adds information to an inode's extent
* status tree.
- *
- * Return 0 on success, error code on failure.
*/
-int ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
- ext4_lblk_t len, ext4_fsblk_t pblk,
- unsigned int status)
+void ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
+ ext4_lblk_t len, ext4_fsblk_t pblk,
+ unsigned int status)
{
struct extent_status newes;
ext4_lblk_t end = lblk + len - 1;
@@ -847,13 +845,13 @@ int ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
struct extent_status *es2 = NULL;

if (EXT4_SB(inode->i_sb)->s_mount_state & EXT4_FC_REPLAY)
- return 0;
+ return;

es_debug("add [%u/%u) %llu %x to extent status tree of inode %lu\n",
lblk, len, pblk, status, inode->i_ino);

if (!len)
- return 0;
+ return;

BUG_ON(end < lblk);

@@ -905,7 +903,7 @@ int ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
goto retry;

ext4_es_print_tree(inode);
- return 0;
+ return;
}

/*
diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h
index c22edb931f1b..d9847a4a25db 100644
--- a/fs/ext4/extents_status.h
+++ b/fs/ext4/extents_status.h
@@ -127,9 +127,9 @@ extern int __init ext4_init_es(void);
extern void ext4_exit_es(void);
extern void ext4_es_init_tree(struct ext4_es_tree *tree);

-extern int ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
- ext4_lblk_t len, ext4_fsblk_t pblk,
- unsigned int status);
+extern void ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk,
+ ext4_lblk_t len, ext4_fsblk_t pblk,
+ unsigned int status);
extern void ext4_es_cache_extent(struct inode *inode, ext4_lblk_t lblk,
ext4_lblk_t len, ext4_fsblk_t pblk,
unsigned int status);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 4221b2dafeb5..ffa40ce04c27 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -594,10 +594,8 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode,
ext4_es_scan_range(inode, &ext4_es_is_delayed, map->m_lblk,
map->m_lblk + map->m_len - 1))
status |= EXTENT_STATUS_DELAYED;
- ret = ext4_es_insert_extent(inode, map->m_lblk,
- map->m_len, map->m_pblk, status);
- if (ret < 0)
- retval = ret;
+ ext4_es_insert_extent(inode, map->m_lblk, map->m_len,
+ map->m_pblk, status);
}
up_read((&EXT4_I(inode)->i_data_sem));

@@ -706,12 +704,8 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode,
ext4_es_scan_range(inode, &ext4_es_is_delayed, map->m_lblk,
map->m_lblk + map->m_len - 1))
status |= EXTENT_STATUS_DELAYED;
- ret = ext4_es_insert_extent(inode, map->m_lblk, map->m_len,
- map->m_pblk, status);
- if (ret < 0) {
- retval = ret;
- goto out_sem;
- }
+ ext4_es_insert_extent(inode, map->m_lblk, map->m_len,
+ map->m_pblk, status);
}

out_sem:
@@ -1779,7 +1773,6 @@ static int ext4_da_map_blocks(struct inode *inode, sector_t iblock,
set_buffer_new(bh);
set_buffer_delay(bh);
} else if (retval > 0) {
- int ret;
unsigned int status;

if (unlikely(retval != map->m_len)) {
@@ -1792,10 +1785,8 @@ static int ext4_da_map_blocks(struct inode *inode, sector_t iblock,

status = map->m_flags & EXT4_MAP_UNWRITTEN ?
EXTENT_STATUS_UNWRITTEN : EXTENT_STATUS_WRITTEN;
- ret = ext4_es_insert_extent(inode, map->m_lblk, map->m_len,
- map->m_pblk, status);
- if (ret != 0)
- retval = ret;
+ ext4_es_insert_extent(inode, map->m_lblk, map->m_len,
+ map->m_pblk, status);
}

out_unlock:
--
2.31.1