From: Damien Le Moal <damien.lemoal@wdc.com>
To: linux-block@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
linux-scsi@vger.kernel.org,
"Martin K . Petersen" <martin.petersen@oracle.com>,
dm-devel@redhat.com, Mike Snitzer <snitzer@redhat.com>
Cc: Ajay Joshi <ajay.joshi@wdc.com>,
Matias Bjorling <matias.bjorling@wdc.com>,
Hans Holmberg <Hans.Holmberg@wdc.com>,
Dmitry Fomichev <dmitry.fomichev@wdc.com>,
Keith Busch <kbusch@kernel.org>
Subject: [PATCH 5/8] block: add zone open, close and finish ioctl support
Date: Sun, 27 Oct 2019 23:05:46 +0900 [thread overview]
Message-ID: <20191027140549.26272-6-damien.lemoal@wdc.com> (raw)
In-Reply-To: <20191027140549.26272-1-damien.lemoal@wdc.com>
From: Ajay Joshi <ajay.joshi@wdc.com>
Introduce three new ioctl commands BLKOPENZONE, BLKCLOSEZONE and
BLKFINISHZONE to allow applications to control the condition of zones
on a zoned block device through the execution of the REQ_OP_ZONE_OPEN,
REQ_OP_ZONE_CLOSE and REQ_OP_ZONE_FINISH operations.
Contains contributions from Matias Bjorling, Hans Holmberg,
Dmitry Fomichev, Keith Busch, Damien Le Moal and Christoph Hellwig.
Signed-off-by: Ajay Joshi <ajay.joshi@wdc.com>
Signed-off-by: Matias Bjorling <matias.bjorling@wdc.com>
Signed-off-by: Hans Holmberg <hans.holmberg@wdc.com>
Signed-off-by: Dmitry Fomichev <dmitry.fomichev@wdc.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
---
block/blk-zoned.c | 28 +++++++++++++++++++++++-----
block/ioctl.c | 5 ++++-
include/linux/blkdev.h | 10 +++++-----
include/uapi/linux/blkzoned.h | 17 ++++++++++++++---
4 files changed, 46 insertions(+), 14 deletions(-)
diff --git a/block/blk-zoned.c b/block/blk-zoned.c
index dab34dc48fb6..481eaf7d04d4 100644
--- a/block/blk-zoned.c
+++ b/block/blk-zoned.c
@@ -357,15 +357,16 @@ int blkdev_report_zones_ioctl(struct block_device *bdev, fmode_t mode,
}
/*
- * BLKRESETZONE ioctl processing.
+ * BLKRESETZONE, BLKOPENZONE, BLKCLOSEZONE and BLKFINISHZONE ioctl processing.
* Called from blkdev_ioctl.
*/
-int blkdev_reset_zones_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg)
+int blkdev_zone_mgmt_ioctl(struct block_device *bdev, fmode_t mode,
+ unsigned int cmd, unsigned long arg)
{
void __user *argp = (void __user *)arg;
struct request_queue *q;
struct blk_zone_range zrange;
+ enum req_opf op;
if (!argp)
return -EINVAL;
@@ -386,8 +387,25 @@ int blkdev_reset_zones_ioctl(struct block_device *bdev, fmode_t mode,
if (copy_from_user(&zrange, argp, sizeof(struct blk_zone_range)))
return -EFAULT;
- return blkdev_zone_mgmt(bdev, REQ_OP_ZONE_RESET,
- zrange.sector, zrange.nr_sectors, GFP_KERNEL);
+ switch (cmd) {
+ case BLKRESETZONE:
+ op = REQ_OP_ZONE_RESET;
+ break;
+ case BLKOPENZONE:
+ op = REQ_OP_ZONE_OPEN;
+ break;
+ case BLKCLOSEZONE:
+ op = REQ_OP_ZONE_CLOSE;
+ break;
+ case BLKFINISHZONE:
+ op = REQ_OP_ZONE_FINISH;
+ break;
+ default:
+ return -ENOTTY;
+ }
+
+ return blkdev_zone_mgmt(bdev, op, zrange.sector, zrange.nr_sectors,
+ GFP_KERNEL);
}
static inline unsigned long *blk_alloc_zone_bitmap(int node,
diff --git a/block/ioctl.c b/block/ioctl.c
index 15a0eb80ada9..8756efb1419e 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -532,7 +532,10 @@ int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
case BLKREPORTZONE:
return blkdev_report_zones_ioctl(bdev, mode, cmd, arg);
case BLKRESETZONE:
- return blkdev_reset_zones_ioctl(bdev, mode, cmd, arg);
+ case BLKOPENZONE:
+ case BLKCLOSEZONE:
+ case BLKFINISHZONE:
+ return blkdev_zone_mgmt_ioctl(bdev, mode, cmd, arg);
case BLKGETZONESZ:
return put_uint(arg, bdev_zone_sectors(bdev));
case BLKGETNRZONES:
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index bf797a63388c..dbef541c2530 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -367,8 +367,8 @@ extern int blk_revalidate_disk_zones(struct gendisk *disk);
extern int blkdev_report_zones_ioctl(struct block_device *bdev, fmode_t mode,
unsigned int cmd, unsigned long arg);
-extern int blkdev_reset_zones_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg);
+extern int blkdev_zone_mgmt_ioctl(struct block_device *bdev, fmode_t mode,
+ unsigned int cmd, unsigned long arg);
#else /* CONFIG_BLK_DEV_ZONED */
@@ -389,9 +389,9 @@ static inline int blkdev_report_zones_ioctl(struct block_device *bdev,
return -ENOTTY;
}
-static inline int blkdev_reset_zones_ioctl(struct block_device *bdev,
- fmode_t mode, unsigned int cmd,
- unsigned long arg)
+static inline int blkdev_zone_mgmt_ioctl(struct block_device *bdev,
+ fmode_t mode, unsigned int cmd,
+ unsigned long arg)
{
return -ENOTTY;
}
diff --git a/include/uapi/linux/blkzoned.h b/include/uapi/linux/blkzoned.h
index 498eec813494..0cdef67135f0 100644
--- a/include/uapi/linux/blkzoned.h
+++ b/include/uapi/linux/blkzoned.h
@@ -120,9 +120,11 @@ struct blk_zone_report {
};
/**
- * struct blk_zone_range - BLKRESETZONE ioctl request
- * @sector: starting sector of the first zone to issue reset write pointer
- * @nr_sectors: Total number of sectors of 1 or more zones to reset
+ * struct blk_zone_range - BLKRESETZONE/BLKOPENZONE/
+ * BLKCLOSEZONE/BLKFINISHZONE ioctl
+ * requests
+ * @sector: Starting sector of the first zone to operate on.
+ * @nr_sectors: Total number of sectors of all zones to operate on.
*/
struct blk_zone_range {
__u64 sector;
@@ -139,10 +141,19 @@ struct blk_zone_range {
* sector range. The sector range must be zone aligned.
* @BLKGETZONESZ: Get the device zone size in number of 512 B sectors.
* @BLKGETNRZONES: Get the total number of zones of the device.
+ * @BLKOPENZONE: Open the zones in the specified sector range.
+ * The 512 B sector range must be zone aligned.
+ * @BLKCLOSEZONE: Close the zones in the specified sector range.
+ * The 512 B sector range must be zone aligned.
+ * @BLKFINISHZONE: Mark the zones as full in the specified sector range.
+ * The 512 B sector range must be zone aligned.
*/
#define BLKREPORTZONE _IOWR(0x12, 130, struct blk_zone_report)
#define BLKRESETZONE _IOW(0x12, 131, struct blk_zone_range)
#define BLKGETZONESZ _IOR(0x12, 132, __u32)
#define BLKGETNRZONES _IOR(0x12, 133, __u32)
+#define BLKOPENZONE _IOW(0x12, 134, struct blk_zone_range)
+#define BLKCLOSEZONE _IOW(0x12, 135, struct blk_zone_range)
+#define BLKFINISHZONE _IOW(0x12, 136, struct blk_zone_range)
#endif /* _UAPI_BLKZONED_H */
--
2.21.0
next prev parent reply other threads:[~2019-10-27 14:06 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-27 14:05 [PATCH 0/8] Zone management commands support Damien Le Moal
2019-10-27 14:05 ` [PATCH 1/8] block: Remove REQ_OP_ZONE_RESET plugging Damien Le Moal
2019-10-28 7:50 ` Chaitanya Kulkarni
2019-10-29 12:13 ` Javier González
2019-11-07 9:50 ` Christoph Hellwig
2019-10-27 14:05 ` [PATCH 2/8] block: Simplify REQ_OP_ZONE_RESET_ALL handling Damien Le Moal
2019-10-28 7:49 ` Chaitanya Kulkarni
2019-10-28 7:54 ` Damien Le Moal
2019-10-28 8:37 ` Chaitanya Kulkarni
2019-11-07 9:51 ` Christoph Hellwig
2019-10-27 14:05 ` [PATCH 3/8] scsi: sd_zbc: Fix sd_zbc_complete() Damien Le Moal
2019-11-02 0:42 ` Martin K. Petersen
2019-10-27 14:05 ` [PATCH 4/8] block: add zone open, close and finish operations Damien Le Moal
2019-10-29 12:23 ` Javier González
2019-11-07 9:52 ` Christoph Hellwig
2019-10-27 14:05 ` Damien Le Moal [this message]
2019-10-29 12:23 ` [PATCH 5/8] block: add zone open, close and finish ioctl support Javier González
2019-11-07 9:52 ` Christoph Hellwig
2019-10-27 14:05 ` [PATCH 6/8] scsi: sd_zbc: add zone open, close, and finish support Damien Le Moal
2019-11-02 0:43 ` Martin K. Petersen
2019-11-07 9:53 ` Christoph Hellwig
2019-10-27 14:05 ` [PATCH 7/8] dm: add zone open, close " Damien Le Moal
2019-11-05 16:34 ` Mike Snitzer
2019-11-07 9:53 ` Christoph Hellwig
2019-10-27 14:05 ` [PATCH 8/8] null_blk: add zone open, close, " Damien Le Moal
2019-11-07 9:54 ` Christoph Hellwig
2019-11-02 3:01 ` [PATCH 0/8] Zone management commands support Jens Axboe
2019-11-03 23:41 ` Damien Le Moal
2019-11-05 4:51 ` Martin K. Petersen
2019-11-05 5:08 ` Damien Le Moal
2019-11-07 13:40 ` Jens Axboe
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