Unverified Commit 6920e338 authored by Christian Brauner's avatar Christian Brauner
Browse files

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: default avatarJan Kara <jack@suse.cz>
Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent 484caf5e

fs/super.c

+6 −0
Original line number Diff line number Diff line
@@ -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);