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Commit ac081c3b authored by Khazhismel Kumykov's avatar Khazhismel Kumykov Committed by Greg Kroah-Hartman
Browse files

fs/fat/fatent.c: add cond_resched() to fat_count_free_clusters() 

On non-preempt kernels this loop can take a long time (more than 50 ticks)
processing through entries.

Link: http://lkml.kernel.org/r/20181010172623.57033-1-khazhy@google.com


Signed-off-by: default avatarKhazhismel Kumykov <khazhy@google.com>
Acked-by: default avatarOGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Reviewed-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent bfba8e5c

fs/fat/fatent.c

+1 −0
Original line number Diff line number Diff line
@@ -682,6 +682,7 @@ int fat_count_free_clusters(struct super_block *sb) 
			if (ops->ent_get(&fatent) == FAT_ENT_FREE)

				free++;

		} while (fat_ent_next(sbi, &fatent));

		cond_resched();

	}

	sbi->free_clusters = free;

	sbi->free_clus_valid = 1;