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From: Johannes Thumshirn <johannes.thumshirn@wdc.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@infradead.org>,
	linux-block <linux-block@vger.kernel.org>,
	Damien Le Moal <Damien.LeMoal@wdc.com>,
	Keith Busch <kbusch@kernel.org>,
	"linux-scsi @ vger . kernel . org" <linux-scsi@vger.kernel.org>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	"linux-fsdevel @ vger . kernel . org"
	<linux-fsdevel@vger.kernel.org>,
	"Darrick J . Wong" <darrick.wong@oracle.com>,
	Johannes Thumshirn <johannes.thumshirn@wdc.com>
Subject: [PATCH v2 11/11] zonefs: use zone-append for sequential zones
Date: Wed, 25 Mar 2020 00:24:54 +0900	[thread overview]
Message-ID: <20200324152454.4954-12-johannes.thumshirn@wdc.com> (raw)
In-Reply-To: <20200324152454.4954-1-johannes.thumshirn@wdc.com>

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
 fs/zonefs/super.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c
index 69aee3dfb660..d08d715c99de 100644
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c
@@ -628,12 +628,17 @@ static ssize_t zonefs_file_dio_write(struct kiocb *iocb, struct iov_iter *from)
 		goto inode_unlock;
 	}
 
-	/* Enforce sequential writes (append only) in sequential zones */
 	mutex_lock(&zi->i_truncate_mutex);
-	if (zi->i_ztype == ZONEFS_ZTYPE_SEQ && iocb->ki_pos != zi->i_wpoffset) {
-		mutex_unlock(&zi->i_truncate_mutex);
-		ret = -EINVAL;
-		goto inode_unlock;
+	if (zi->i_ztype == ZONEFS_ZTYPE_SEQ) {
+		/* Enforce sequential writes (append only) */
+		if (iocb->ki_pos != zi->i_wpoffset) {
+			mutex_unlock(&zi->i_truncate_mutex);
+			ret = -EINVAL;
+			goto inode_unlock;
+		}
+		/* Use zone append for sync write */
+		if (is_sync_kiocb(iocb))
+			iocb->ki_flags |= IOCB_ZONE_APPEND;
 	}
 	mutex_unlock(&zi->i_truncate_mutex);
 
-- 
2.24.1


      parent reply	other threads:[~2020-03-24 15:25 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-24 15:24 [PATCH v2 00/11] Introduce Zone Append for writing to zoned block devices Johannes Thumshirn
2020-03-24 15:24 ` [PATCH v2 01/11] block: factor out requeue handling from dispatch code Johannes Thumshirn
2020-03-25  8:40   ` Christoph Hellwig
2020-03-25 15:40     ` Jens Axboe
2020-03-24 15:24 ` [PATCH v2 02/11] block: provide fallbacks for blk_queue_zone_is_seq and blk_queue_zone_no Johannes Thumshirn
2020-03-24 15:24 ` [PATCH v2 03/11] block: Introduce REQ_OP_ZONE_APPEND Johannes Thumshirn
2020-03-24 16:07   ` Johannes Thumshirn
2020-03-25 16:24   ` Johannes Thumshirn
2020-03-24 15:24 ` [PATCH v2 04/11] block: introduce blk_req_zone_write_trylock Johannes Thumshirn
2020-03-24 15:24 ` [PATCH v2 05/11] block: Introduce zone write pointer offset caching Johannes Thumshirn
2020-03-24 15:24 ` [PATCH v2 06/11] scsi: sd_zbc: factor out sanity checks for zoned commands Johannes Thumshirn
2020-03-24 15:24 ` [PATCH v2 07/11] scsi: sd_zbc: emulate ZONE_APPEND commands Johannes Thumshirn
2020-03-24 15:24 ` [PATCH v2 08/11] null_blk: Cleanup zoned device initialization Johannes Thumshirn
2020-03-24 15:24 ` [PATCH v2 09/11] null_blk: Support REQ_OP_ZONE_APPEND Johannes Thumshirn
2020-03-24 15:24 ` [PATCH v2 10/11] iomap: Add support for zone append writes Johannes Thumshirn
2020-03-24 15:41   ` Christoph Hellwig
2020-03-25  5:27     ` Damien Le Moal
2020-03-25  6:25       ` hch
2020-03-25  9:45     ` Johannes Thumshirn
2020-03-25  9:48       ` hch
2020-03-25  9:54         ` Johannes Thumshirn
2020-03-25  9:59         ` Damien Le Moal
2020-03-25 10:01           ` hch
2020-03-25 10:15             ` Johannes Thumshirn
2020-03-24 22:45   ` Dave Chinner
2020-03-25  5:38     ` Damien Le Moal
2020-03-25  8:32     ` Johannes Thumshirn
2020-03-24 15:24 ` Johannes Thumshirn [this message]

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