From 8782b020ccbef6c4b62f00c86423f4d37ec60932 Mon Sep 17 00:00:00 2001 From: Baokun Li Date: Mon, 24 Apr 2023 11:38:44 +0800 Subject: [PATCH] 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 Reviewed-by: Jan Kara Link: https://lore.kernel.org/r/20230424033846.4732-11-libaokun1@huawei.com Signed-off-by: Theodore Ts'o --- fs/ext4/extents_status.c | 10 ++++------ fs/ext4/extents_status.h | 4 ++-- fs/ext4/inode.c | 17 +++++------------ 3 files changed, 11 insertions(+), 20 deletions(-) diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c index b01b3bd..6a020e6 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 526a688..c22edb9 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 519f5a0..22c87aa 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; } /* -- 2.7.4