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-rw-r--r--fs/ubifs/super.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 89556ee72518..a7fc97f4d9de 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -432,18 +432,19 @@ static int ubifs_sync_fs(struct super_block *sb, int wait)
432 int i, err; 432 int i, err;
433 struct ubifs_info *c = sb->s_fs_info; 433 struct ubifs_info *c = sb->s_fs_info;
434 struct writeback_control wbc = { 434 struct writeback_control wbc = {
435 .sync_mode = wait ? WB_SYNC_ALL : WB_SYNC_NONE, 435 .sync_mode = WB_SYNC_ALL,
436 .range_start = 0, 436 .range_start = 0,
437 .range_end = LLONG_MAX, 437 .range_end = LLONG_MAX,
438 .nr_to_write = LONG_MAX, 438 .nr_to_write = LONG_MAX,
439 }; 439 };
440 440
441 /* 441 /*
442 * Note by akpm about WB_SYNC_NONE used above: zero @wait is just an 442 * Zero @wait is just an advisory thing to help the file system shove
443 * advisory thing to help the file system shove lots of data into the 443 * lots of data into the queues, and there will be the second
444 * queues. If some gets missed then it'll be picked up on the second
445 * '->sync_fs()' call, with non-zero @wait. 444 * '->sync_fs()' call, with non-zero @wait.
446 */ 445 */
446 if (!wait)
447 return 0;
447 448
448 if (sb->s_flags & MS_RDONLY) 449 if (sb->s_flags & MS_RDONLY)
449 return 0; 450 return 0;