openwrt/target/linux/generic/hack-5.4/550-loop-Report-EOPNOTSUPP-properly.patch
John Audia 2c2fcbd2e0 kernel: bump 5.4 to 5.4.63
Manually merged:
 hack-5.4
  230-openwrt_lzma_options.patch
 bcm27xx
  950-0283-hid-usb-Add-device-quirks-for-Freeway-Airmouse-T3-an.patch
 x86
  011-tune_lzma_options.patch

Remove upstreamed patches in collaboration with Ansuel Smith:
 ipq806x
  093-1-v5.8-ipq806x-PCI-qcom-Add-missing-ipq806x-clocks-in-PCIe-driver.patch
  093-2-v5.8-ipq806x-PCI-qcom-Change-duplicate-PCI-reset-to-phy-reset.patch
  093-3-v5.8-ipq806x-PCI-qcom-Add-missing-reset-for-ipq806x.patch

All other modifications made by update_kernel.sh

Build-tested: bcm27xx/bcm2708, ipq806x, x86/64
Run-tested: ipq806x (R7800), x86/64

No dmesg regressions, everything functional

Signed-off-by: John Audia <graysky@archlinux.us>
[update commit message/tested]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-09-06 19:55:19 +02:00

42 lines
1.3 KiB
Diff

From 2e864386e62e702a343be2507062ee08d5dfc810 Mon Sep 17 00:00:00 2001
From: Evan Green <evgreen@chromium.org>
Date: Thu, 14 Nov 2019 15:50:07 -0800
Subject: loop: Report EOPNOTSUPP properly
Properly plumb out EOPNOTSUPP from loop driver operations, which may
get returned when for instance a discard operation is attempted but not
supported by the underlying block device. Before this change, everything
was reported in the log as an I/O error, which is scary and not
helpful in debugging.
Signed-off-by: Evan Green <evgreen@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
---
drivers/block/loop.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -462,7 +462,7 @@ static void lo_complete_rq(struct reques
if (!cmd->use_aio || cmd->ret < 0 || cmd->ret == blk_rq_bytes(rq) ||
req_op(rq) != REQ_OP_READ) {
if (cmd->ret < 0)
- ret = BLK_STS_IOERR;
+ ret = errno_to_blk_status(cmd->ret);
goto end_io;
}
@@ -1973,7 +1973,10 @@ static void loop_handle_cmd(struct loop_
failed:
/* complete non-aio request */
if (!cmd->use_aio || ret) {
- cmd->ret = ret ? -EIO : 0;
+ if (ret == -EOPNOTSUPP)
+ cmd->ret = ret;
+ else
+ cmd->ret = ret ? -EIO : 0;
blk_mq_complete_request(rq);
}
}