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: Khazhismel Kumykov <khazhy@google.com> Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>hifive-unleashed-5.1
parent
bfba8e5cf2
commit
ac081c3be3
|
@ -682,6 +682,7 @@ int fat_count_free_clusters(struct super_block *sb)
|
||||||
if (ops->ent_get(&fatent) == FAT_ENT_FREE)
|
if (ops->ent_get(&fatent) == FAT_ENT_FREE)
|
||||||
free++;
|
free++;
|
||||||
} while (fat_ent_next(sbi, &fatent));
|
} while (fat_ent_next(sbi, &fatent));
|
||||||
|
cond_resched();
|
||||||
}
|
}
|
||||||
sbi->free_clusters = free;
|
sbi->free_clusters = free;
|
||||||
sbi->free_clus_valid = 1;
|
sbi->free_clus_valid = 1;
|
||||||
|
|
Loading…
Reference in New Issue