dm-log-writes records the sequence of completion, not submission, thus for the following sequence (W=write, C=complete): Wa,Wb,Wc,Cc,Ca,FLUSH,FUAd,Cb,CFLUSH,CFUAd The logged results in log device should be: c,a,b,flush,fua Fix the comment to give a better example. Signed-off-by: Qu Wenruo <wqu@xxxxxxxx> --- drivers/md/dm-log-writes.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c index 9ea2b0291f20..af94bbe77ce2 100644 --- a/drivers/md/dm-log-writes.c +++ b/drivers/md/dm-log-writes.c @@ -40,7 +40,7 @@ * * Would result in the log looking like this: * - * c,a,flush,fuad,b,<other writes>,<next flush> + * c,a,b,flush,fuad,<other writes>,<next flush> * * This is meant to help expose problems where file systems do not properly wait * on data being written before invoking a FLUSH. FUA bypasses cache so once it -- 2.22.0 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
