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Message-Id: <20240128-zonefs_nofs-v3-2-ae3b7c8def61@wdc.com>
Date: Sun, 28 Jan 2024 23:52:17 -0800
From: Johannes Thumshirn <johannes.thumshirn@....com>
To: Damien Le Moal <dlemoal@...nel.org>,
Naohiro Aota <naohiro.aota@....com>, Johannes Thumshirn <jth@...nel.org>,
Alasdair Kergon <agk@...hat.com>, Mike Snitzer <snitzer@...nel.org>,
Mikulas Patocka <mpatocka@...hat.com>, dm-devel@...ts.linux.dev,
Chris Mason <clm@...com>, Josef Bacik <josef@...icpanda.com>,
David Sterba <dsterba@...e.com>, Jaegeuk Kim <jaegeuk@...nel.org>,
Chao Yu <chao@...nel.org>, Jens Axboe <axboe@...nel.dk>,
Christoph Hellwig <hch@....de>, Sagi Grimberg <sagi@...mberg.me>,
Chaitanya Kulkarni <kch@...dia.com>
Cc: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-btrfs@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
linux-block@...r.kernel.org, linux-nvme@...ts.infradead.org,
Johannes Thumshirn <johannes.thumshirn@....com>
Subject: [PATCH v3 2/5] dm: dm-zoned: guard blkdev_zone_mgmt with noio
scope
Guard the calls to blkdev_zone_mgmt() with a memalloc_noio scope.
This helps us getting rid of the GFP_NOIO argument to blkdev_zone_mgmt();
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@....com>
---
drivers/md/dm-zoned-metadata.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
index fdfe30f7b697..165996cc966c 100644
--- a/drivers/md/dm-zoned-metadata.c
+++ b/drivers/md/dm-zoned-metadata.c
@@ -1655,10 +1655,13 @@ static int dmz_reset_zone(struct dmz_metadata *zmd, struct dm_zone *zone)
if (!dmz_is_empty(zone) || dmz_seq_write_err(zone)) {
struct dmz_dev *dev = zone->dev;
+ unsigned int noio_flag;
+ noio_flag = memalloc_noio_save();
ret = blkdev_zone_mgmt(dev->bdev, REQ_OP_ZONE_RESET,
dmz_start_sect(zmd, zone),
- zmd->zone_nr_sectors, GFP_NOIO);
+ zmd->zone_nr_sectors, GFP_KERNEL);
+ memalloc_noio_restore(noio_flag);
if (ret) {
dmz_dev_err(dev, "Reset zone %u failed %d",
zone->id, ret);
--
2.43.0
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