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Commit 4b99faa2 authored Apr 25, 2019 by Khazhismel Kumykov Committed by Theodore Ts'o Apr 25, 2019

ext4: cond_resched in work-heavy group loops



Signed-off-by: Khazhismel Kumykov <khazhy@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>

parent 7bc04c5c

fs/ext4/block_validity.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -197,6 +197,7 @@ int ext4_setup_system_zone(struct super_block *sb)
		return 0;

		for (i=0; i < ngroups; i++) {
		cond_resched();
		if (ext4_bg_has_super(sb, i) &&
		((i < 5) \|\| ((i % flex_size) == 0)))
		add_system_zone(sbi, ext4_group_first_block_no(sb, i),

fs/ext4/mballoc.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -2490,6 +2490,7 @@ static int ext4_mb_init_backend(struct super_block *sb)
		sbi->s_buddy_cache->i_ino = EXT4_BAD_INO;
		EXT4_I(sbi->s_buddy_cache)->i_disksize = 0;
		for (i = 0; i < ngroups; i++) {
		cond_resched();
		desc = ext4_get_group_desc(sb, i, NULL);
		if (desc == NULL) {
		ext4_msg(sb, KERN_ERR, "can't read descriptor %u", i);
		@@ -2705,6 +2706,7 @@ int ext4_mb_release(struct super_block *sb)

		if (sbi->s_group_info) {
		for (i = 0; i < ngroups; i++) {
		cond_resched();
		grinfo = ext4_get_group_info(sb, i);
		#ifdef DOUBLE_CHECK
		kfree(grinfo->bb_bitmap);