This is a note to let you know that I've just added the patch titled

libata: Enable queued TRIM for Samsung SSD 860

to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: libata-enable-queued-trim-for-samsung-ssd-860.patch and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From ca6bfcb2f6d9deab3924bf901e73622a94900473 Mon Sep 17 00:00:00 2001

From: Ju Hyung Park qkrwngud825@gmail.com Date: Sun, 11 Mar 2018 02:28:35 +0900 Subject: libata: Enable queued TRIM for Samsung SSD 860

From: Ju Hyung Park qkrwngud825@gmail.com

commit ca6bfcb2f6d9deab3924bf901e73622a94900473 upstream.

Samsung explicitly states that queued TRIM is supported for Linux with 860 PRO and 860 EVO.

Make the previous blacklist to cover only 840 and 850 series.

Signed-off-by: Park Ju Hyung qkrwngud825@gmail.com Reviewed-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Tejun Heo tj@kernel.org Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/ata/libata-core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -4539,7 +4539,9 @@ static const struct ata_blacklist_entry ATA_HORKAGE_ZERO_AFTER_TRIM, }, { "Crucial_CT*MX100*", "MU01", ATA_HORKAGE_NO_NCQ_TRIM | ATA_HORKAGE_ZERO_AFTER_TRIM, }, - { "Samsung SSD 8*", NULL, ATA_HORKAGE_NO_NCQ_TRIM | + { "Samsung SSD 840*", NULL, ATA_HORKAGE_NO_NCQ_TRIM | + ATA_HORKAGE_ZERO_AFTER_TRIM, }, + { "Samsung SSD 850*", NULL, ATA_HORKAGE_NO_NCQ_TRIM | ATA_HORKAGE_ZERO_AFTER_TRIM, }, { "FCCT*M500*", NULL, ATA_HORKAGE_NO_NCQ_TRIM | ATA_HORKAGE_ZERO_AFTER_TRIM, },

Patches currently in stable-queue which might be from qkrwngud825@gmail.com are

queue-4.14/libata-enable-queued-trim-for-samsung-ssd-860.patch