From patchwork Thu Jan 25 16:53:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Thumshirn X-Patchwork-Id: 13531426 X-Patchwork-Delegate: snitzer@redhat.com Received: from esa4.hgst.iphmx.com (esa4.hgst.iphmx.com [216.71.154.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6133D13DBB9 for ; Thu, 25 Jan 2024 16:53:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.71.154.42 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706201630; cv=none; b=PdL8x0Qja8XXlYdOeWae/Y4tq1FpNeahsaRE1KxGYynQTABRQSdIMcDe7AGRlJDxJNptwWwBz305z86S3ZuhttKjuXYW7jeW7pvAsqTUNJOO4LnETaO8mAYxKIYlln4WgWx4sMwqeGbcrP/D3X9eicPJTU4r2EenJQNIICrmX0U= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706201630; c=relaxed/simple; bh=MadywNv3PPpA8atuGcDj3Vd17mnoG/ezGAm6iZoKSro=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=NE9UJvfVy9IF0Q9jut6WErMz/hrXDrNU73oxL3rMqVaxvVpKGwB6yl8x3ogD5Os7PmsQNSJ1Ij+lgsAV6Xbau84Y33bgrIkALhf2EXJIZih3rfzfCo6luqPm4//UjGvLuMf7LrKIjsEitx5IlDzu3R6NrIQRcKQfdZoeqCOLsRo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=wdc.com; spf=pass smtp.mailfrom=wdc.com; dkim=pass (2048-bit key) header.d=wdc.com header.i=@wdc.com header.b=gUw4ZSsa; arc=none smtp.client-ip=216.71.154.42 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=wdc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=wdc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=wdc.com header.i=@wdc.com header.b="gUw4ZSsa" DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1706201629; x=1737737629; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=MadywNv3PPpA8atuGcDj3Vd17mnoG/ezGAm6iZoKSro=; b=gUw4ZSsaMPVw6BDW2Ur1J4TOcTxSzQBkZf9W22xtg03oe80n3m6oCKaz ZGmnXALnNavnq0VoP2FIRh7IeV+rBAwqw5K1K6UAWv7J2bP7ZJPFH+hoI 2bK2oqtnRsgrFKGy43U+4CqEhp7IUBbbAFBUUVa5wnsdB/ChPbEj6xFMK XtT6ImgkIq2XM5hQXScEZCBGHxRua2LF9stJ5KFQuenb+Ma5JsF2iYH5s xkh+tgSrYbTKZwnstgcLRpIpw3dXsZAaHag3bIASCGXH+DJbTLXZEXiXC 6BhX9gDddZnDpVOF6Wflhkhu4s2fO8EMTEr0YzPXsxxEjIurAjayRA3ac Q==; X-CSE-ConnectionGUID: qt6tztg5Td6/Oz/7KRaLlg== X-CSE-MsgGUID: 2JiG61gJQjWTZAHT+Bmx3w== X-IronPort-AV: E=Sophos;i="6.05,216,1701100800"; d="scan'208";a="7456565" Received: from h199-255-45-15.hgst.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 26 Jan 2024 00:53:44 +0800 IronPort-SDR: HYP6dqe4GqOHN8i7j11FySSKfVsTd6E+YxyCwS0DItVvfzsvEL9sKxAOfCqdzxjC60GB035faA pl2aWlpgqh2g== Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 25 Jan 2024 07:58:03 -0800 IronPort-SDR: iGbJfwTm9aux0HAHn2Hu4+5MaKexoPy7oBPg1gDFb4sShWjqtqNmtHUakx83XvcY7OzLhKfXSU svTD8SbpHGFQ== WDCIronportException: Internal Received: from unknown (HELO redsun91.ssa.fujisawa.hgst.com) ([10.149.66.6]) by uls-op-cesaip01.wdc.com with ESMTP; 25 Jan 2024 08:53:41 -0800 From: Johannes Thumshirn Date: Thu, 25 Jan 2024 08:53:26 -0800 Subject: [PATCH v2 3/5] btrfs: zoned: call blkdev_zone_mgmt in nofs scope Precedence: bulk X-Mailing-List: dm-devel@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240125-zonefs_nofs-v2-3-2d975c8c1690@wdc.com> References: <20240125-zonefs_nofs-v2-0-2d975c8c1690@wdc.com> In-Reply-To: <20240125-zonefs_nofs-v2-0-2d975c8c1690@wdc.com> To: Damien Le Moal , Naohiro Aota , Johannes Thumshirn , Alasdair Kergon , Mike Snitzer , Mikulas Patocka , dm-devel@lists.linux.dev, Chris Mason , Josef Bacik , David Sterba , Jaegeuk Kim , Chao Yu , Jens Axboe , Christoph Hellwig , Sagi Grimberg , Chaitanya Kulkarni Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-block@vger.kernel.org, linux-nvme@lists.infradead.org, Johannes Thumshirn X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1706201608; l=3714; i=johannes.thumshirn@wdc.com; s=20230613; h=from:subject:message-id; bh=MadywNv3PPpA8atuGcDj3Vd17mnoG/ezGAm6iZoKSro=; b=OeiWcP8kl57wFLapxrMUtXeqJjNXTQJbNM0ivK0560YCzP4hJ0iOZeaEiCTU0BJrEPblLrrlV hEAm7xgua+VD3na0CHCBXETqitu+y+6zukGX52zzUrvhHVDMFcgECJ1 X-Developer-Key: i=johannes.thumshirn@wdc.com; a=ed25519; pk=TGmHKs78FdPi+QhrViEvjKIGwReUGCfa+3LEnGoR2KM= Add a memalloc_nofs scope around all calls to blkdev_zone_mgmt(). This allows us to further get rid of the GFP_NOFS argument for blkdev_zone_mgmt(). Signed-off-by: Johannes Thumshirn --- fs/btrfs/zoned.c | 33 ++++++++++++++++++++++++++------- 1 file changed, 26 insertions(+), 7 deletions(-) diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c index 168af9d000d1..05640d61e435 100644 --- a/fs/btrfs/zoned.c +++ b/fs/btrfs/zoned.c @@ -824,11 +824,15 @@ static int sb_log_location(struct block_device *bdev, struct blk_zone *zones, reset = &zones[1]; if (reset && reset->cond != BLK_ZONE_COND_EMPTY) { + unsigned int nofs_flags; + ASSERT(sb_zone_is_full(reset)); + nofs_flags = memalloc_nofs_save(); ret = blkdev_zone_mgmt(bdev, REQ_OP_ZONE_RESET, reset->start, reset->len, - GFP_NOFS); + GFP_KERNEL); + memalloc_nofs_restore(nofs_flags); if (ret) return ret; @@ -974,11 +978,14 @@ int btrfs_advance_sb_log(struct btrfs_device *device, int mirror) * explicit ZONE_FINISH is not necessary. */ if (zone->wp != zone->start + zone->capacity) { + unsigned int nofs_flags; int ret; + nofs_flags = memalloc_nofs_save(); ret = blkdev_zone_mgmt(device->bdev, REQ_OP_ZONE_FINISH, zone->start, - zone->len, GFP_NOFS); + zone->len, GFP_KERNEL); + memalloc_nofs_restore(nofs_flags); if (ret) return ret; } @@ -996,11 +1003,13 @@ int btrfs_advance_sb_log(struct btrfs_device *device, int mirror) int btrfs_reset_sb_log_zones(struct block_device *bdev, int mirror) { + unsigned int nofs_flags; sector_t zone_sectors; sector_t nr_sectors; u8 zone_sectors_shift; u32 sb_zone; u32 nr_zones; + int ret; zone_sectors = bdev_zone_sectors(bdev); zone_sectors_shift = ilog2(zone_sectors); @@ -1011,9 +1020,13 @@ int btrfs_reset_sb_log_zones(struct block_device *bdev, int mirror) if (sb_zone + 1 >= nr_zones) return -ENOENT; - return blkdev_zone_mgmt(bdev, REQ_OP_ZONE_RESET, - zone_start_sector(sb_zone, bdev), - zone_sectors * BTRFS_NR_SB_LOG_ZONES, GFP_NOFS); + nofs_flags = memalloc_nofs_save(); + ret = blkdev_zone_mgmt(bdev, REQ_OP_ZONE_RESET, + zone_start_sector(sb_zone, bdev), + zone_sectors * BTRFS_NR_SB_LOG_ZONES, + GFP_KERNEL); + memalloc_nofs_restore(nofs_flags); + return ret; } /* @@ -1124,12 +1137,15 @@ static void btrfs_dev_clear_active_zone(struct btrfs_device *device, u64 pos) int btrfs_reset_device_zone(struct btrfs_device *device, u64 physical, u64 length, u64 *bytes) { + unsigned int nofs_flags; int ret; *bytes = 0; + nofs_flags = memalloc_nofs_save(); ret = blkdev_zone_mgmt(device->bdev, REQ_OP_ZONE_RESET, physical >> SECTOR_SHIFT, length >> SECTOR_SHIFT, - GFP_NOFS); + GFP_KERNEL); + memalloc_nofs_restore(nofs_flags); if (ret) return ret; @@ -2234,14 +2250,17 @@ static int do_zone_finish(struct btrfs_block_group *block_group, bool fully_writ struct btrfs_device *device = map->stripes[i].dev; const u64 physical = map->stripes[i].physical; struct btrfs_zoned_device_info *zinfo = device->zone_info; + unsigned int nofs_flags; if (zinfo->max_active_zones == 0) continue; + nofs_flags = memalloc_nofs_save(); ret = blkdev_zone_mgmt(device->bdev, REQ_OP_ZONE_FINISH, physical >> SECTOR_SHIFT, zinfo->zone_size >> SECTOR_SHIFT, - GFP_NOFS); + GFP_KERNEL); + memalloc_nofs_restore(nofs_flags); if (ret) return ret;