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ext4: make ext4_es_insert_delayed_block() return void

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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.

[ Fixed bug which caused system hangs during bigalloc test runs.  See
 https://lore.kernel.org/r/20230612030405.GH1436857@mit.edu for more
 details.  -- TYT ]

Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230424033846.4732-11-libaokun1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Baokun Li 2023-04-24 11:38:44 +08:00 committed by Theodore Ts'o
parent ed5d285b3f
commit 8782b020cc
3 changed files with 11 additions and 20 deletions
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10
fs/ext4/extents_status.c
View File

@ -2016,11 +2016,9 @@ 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 err1 = 0;
@ -2029,7 +2027,7 @@ int ext4_es_insert_delayed_block(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/1) delayed to extent status tree of inode %lu\n",
lblk, inode->i_ino);
@ -2071,7 +2069,7 @@ error:
ext4_es_print_tree(inode);
ext4_print_pending_tree(inode);
return 0;
return;
}
/*

4
fs/ext4/extents_status.h
View File

@ -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);

17
fs/ext4/inode.c
View File

@ -1630,7 +1630,6 @@ 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;
bool allocated = false;
bool reserved = false;
/*
* If the cluster containing lblk is shared with a delayed,
@ -1646,8 +1645,7 @@ static int ext4_insert_delayed_block(struct inode *inode, ext4_lblk_t lblk)
if (sbi->s_cluster_ratio == 1) {
ret = ext4_da_reserve_space(inode);
if (ret != 0) /* ENOSPC */
goto errout;
reserved = true;
return ret;
} else { /* bigalloc */
if (!ext4_es_scan_clu(inode, &ext4_es_is_delonly, lblk)) {
if (!ext4_es_scan_clu(inode,
@ -1655,12 +1653,11 @@ static int ext4_insert_delayed_block(struct inode *inode, ext4_lblk_t lblk)
ret = ext4_clu_mapped(inode,
EXT4_B2C(sbi, lblk));
if (ret < 0)
goto errout;
return ret;
if (ret == 0) {
ret = ext4_da_reserve_space(inode);
if (ret != 0) /* ENOSPC */
goto errout;
reserved = true;
return ret;
} else {
allocated = true;
}
@ -1670,12 +1667,8 @@ 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);
errout:
return ret;
ext4_es_insert_delayed_block(inode, lblk, allocated);
return 0;
}
/*