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authorBaokun Li <libaokun1@huawei.com>2023-04-24 05:38:44 +0200
committerTheodore Ts'o <tytso@mit.edu>2023-06-27 01:35:12 +0200
commit8782b020ccbef6c4b62f00c86423f4d37ec60932 (patch)
treeec7dea6f9528ecef9b7cce00d2060e4a6376347c /fs/ext4
parentext4: make ext4_es_remove_extent() return void (diff)
downloadlinux-8782b020ccbef6c4b62f00c86423f4d37ec60932.tar.xz
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ext4: make ext4_es_insert_delayed_block() return void
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>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/extents_status.c10
-rw-r--r--fs/ext4/extents_status.h4
-rw-r--r--fs/ext4/inode.c17
3 files changed, 11 insertions, 20 deletions
diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index b01b3bdab77d..6a020e600d58 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -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;
}
/*
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 519f5a065fdc..22c87aa56a39 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -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;
}
/*