W dniu 8.07.2024 o 03:54, Yu Kuai pisze: > Hi, > > 在 2024/07/06 22:30, Mateusz Jończyk 写道: >> Subject: [RFC PATCH] md/raid1: fill in max_sectors >> >> >> >> Not yet fully tested or carefully investigated. >> >> >> >> Signed-off-by: Mateusz Jo艅czyk<mat.jonczyk@xxxxx> >> >> >> >> --- >> >> drivers/md/raid1.c | 1 + >> >> 1 file changed, 1 insertion(+) >> >> >> >> diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c >> >> index 7b8a71ca66dd..82f70a4ce6ed 100644 >> >> --- a/drivers/md/raid1.c >> >> +++ b/drivers/md/raid1.c >> >> @@ -680,6 +680,7 @@ static int choose_slow_rdev(struct r1conf *conf, struct r1bio *r1_bio, >> >> len = r1_bio->sectors; >> >> read_len = raid1_check_read_range(rdev, this_sector, &len); >> >> if (read_len == r1_bio->sectors) { >> >> + *max_sectors = read_len; >> >> update_read_sectors(conf, disk, this_sector, read_len); >> >> return disk; >> >> } > > This looks correct, can you give it a test and cook a patch? > > Thanks, > Kuai Hello, Yes, I'm working on it. Patch description is nearly done. Kernel with this patch works well with normal usage and fsstress, except when modifying the array, as I have written in my previous email. Will test some more. I'm feeling nervous working on such sensitive code as md, though. I'm not an experienced kernel dev. Greetings, Mateusz