From: Christian Brauner Date: Sat, 29 Mar 2025 08:42:16 +0000 (+0100) Subject: super: skip dying superblocks early X-Git-Tag: block-6.16-20250606~50^2~3^2~4 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=6920e3388ba4c66b0468d43bb7a373f5fff15d35;p=linux-block.git super: skip dying superblocks early Make all iterators uniform by performing an early check whether the superblock is dying. Link: https://lore.kernel.org/r/20250329-work-freeze-v2-3-a47af37ecc3d@kernel.org Reviewed-by: Jan Kara Signed-off-by: Christian Brauner --- diff --git a/fs/super.c b/fs/super.c index b1acfc38ba0c..c67ea3cdda41 100644 --- a/fs/super.c +++ b/fs/super.c @@ -925,6 +925,9 @@ void iterate_supers(void (*f)(struct super_block *, void *), void *arg) list_for_each_entry(sb, &super_blocks, s_list) { bool locked; + if (super_flags(sb, SB_DYING)) + continue; + sb->s_count++; spin_unlock(&sb_lock); @@ -962,6 +965,9 @@ void iterate_supers_type(struct file_system_type *type, hlist_for_each_entry(sb, &type->fs_supers, s_instances) { bool locked; + if (super_flags(sb, SB_DYING)) + continue; + sb->s_count++; spin_unlock(&sb_lock);