[PATCH v3 6/8] ext4: make ext4_es_insert_delayed_block return void

Baokun Li
2023-04-12T12:42:44Z

Now it never fails when inserting a delay extent, so the return value in
ext4_es_insert_delayed_block is no longer necessary, let it return void.

Signed-off-by: Baokun Li <libaokun1@huawei.com>
---
V2->V3:
New added.

fs/ext4/extents_status.c | 23 ++++++-----------------
fs/ext4/extents_status.h | 4 ++--
fs/ext4/inode.c | 7 ++-----
3 files changed, 10 insertions(+), 24 deletions(-)

diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index 1ba2dd14367c..047ec2fc4899 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -1980,17 +1980,14 @@ bool ext4_is_pending(struct inode *inode, ext4_lblk_t lblk)
* @lblk - logical block to be added
* @allocated - indicates whether a physical cluster has been allocated for
* the logical cluster that contains the block
- *
- * Returns 0 on success, negative error code on failure.
*/
-int ext4_es_insert_delayed_block(struct inode *inode, ext4_lblk_t lblk,
- bool allocated)
+void ext4_es_insert_delayed_block(struct inode *inode, ext4_lblk_t lblk,
+ bool allocated)
{
struct extent_status newes;
- int err = 0;

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

es_debug("add [%u/1) delayed to extent status tree of inode %lu\n",
lblk, inode->i_ino);
@@ -2005,24 +2002,16 @@ int ext4_es_insert_delayed_block(struct inode *inode, ext4_lblk_t lblk,
write_lock(&EXT4_I(inode)->i_es_lock);

__es_remove_extent(inode, lblk, lblk, NULL);
-retry:
- err = __es_insert_extent(inode, &newes);
- if (err == -ENOMEM && __es_shrink(EXT4_SB(inode->i_sb),
- 128, EXT4_I(inode)))
- goto retry;
- if (err != 0)
- goto error;
+
+ /* We never return an error when inserting a delayed extent. */
+ (void) __es_insert_extent(inode, &newes);

if (allocated)
__insert_pending(inode, lblk);
-
-error:
write_unlock(&EXT4_I(inode)->i_es_lock);

ext4_es_print_tree(inode);
ext4_print_pending_tree(inode);
-
- return err;
}

/*
diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h
index 526a68890aa6..c22edb931f1b 100644
--- a/fs/ext4/extents_status.h
+++ b/fs/ext4/extents_status.h
@@ -249,8 +249,8 @@ extern void ext4_exit_pending(void);
extern void ext4_init_pending_tree(struct ext4_pending_tree *tree);
extern void ext4_remove_pending(struct inode *inode, ext4_lblk_t lblk);
extern bool ext4_is_pending(struct inode *inode, ext4_lblk_t lblk);
-extern int ext4_es_insert_delayed_block(struct inode *inode, ext4_lblk_t lblk,
- bool allocated);
+extern void ext4_es_insert_delayed_block(struct inode *inode, ext4_lblk_t lblk,
+ bool allocated);
extern unsigned int ext4_es_delayed_clu(struct inode *inode, ext4_lblk_t lblk,
ext4_lblk_t len);
extern void ext4_clear_inode_es(struct inode *inode);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 3bd4d5bbf0aa..9fd3d526f591 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1635,7 +1635,7 @@ static void ext4_print_free_blocks(struct inode *inode)
static int ext4_insert_delayed_block(struct inode *inode, ext4_lblk_t lblk)
{
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
- int ret;
+ int ret = 0;
bool allocated = false;
bool reserved = false;

@@ -1677,10 +1677,7 @@ static int ext4_insert_delayed_block(struct inode *inode, ext4_lblk_t lblk)
}
}

- ret = ext4_es_insert_delayed_block(inode, lblk, allocated);
- if (ret && reserved)
- ext4_da_release_space(inode, 1);
-
+ ext4_es_insert_delayed_block(inode, lblk, allocated);
errout:
return ret;
}
--
2.31.1