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libf2fs_zoned: Introduce f2fs_reset_zone() helper function

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To prepare for write pointer consistency fix by fsck, add
f2fs_reset_zone() helper function which calls RESET ZONE command. The
function is added to lib/libf2fs_zoned which gathers zoned block device
related functions.

When f2fs-tools are built without blkzoned.h kernel header, the helper
function f2fs_reset_zone() prints an error message as other helper
functions in lib/libf2fs_zoned print. To make the message consistent
through the all helper functions, modify message strings in
f2fs_check_zones() and f2fs_reset_zones().

Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Shin'ichiro Kawasaki 2019-11-28 16:59:25 +09:00 committed by Jaegeuk Kim
parent 6d7c7b785f
commit 1d145cb86b
2 changed files with 31 additions and 2 deletions
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1
include/f2fs_fs.h
View File

@ -1303,6 +1303,7 @@ extern int f2fs_report_zone(int, u_int64_t, void *);
typedef int (report_zones_cb_t)(int i, void *, void *);
extern int f2fs_report_zones(int, report_zones_cb_t *, void *);
extern int f2fs_check_zones(int);
int f2fs_reset_zone(int, void *);
extern int f2fs_reset_zones(int);
#define SIZE_ALIGN(val, size) ((val) + (size) - 1) / (size)

32
lib/libf2fs_zoned.c
View File

@ -388,6 +388,28 @@ out:
return ret;
}
int f2fs_reset_zone(int i, void *blkzone)
{
struct blk_zone *blkz = (struct blk_zone *)blkzone;
struct device_info *dev = c.devices + i;
struct blk_zone_range range;
int ret;
if (!blk_zone_seq(blkz) || blk_zone_empty(blkz))
return 0;
/* Non empty sequential zone: reset */
range.sector = blk_zone_sector(blkz);
range.nr_sectors = blk_zone_length(blkz);
ret = ioctl(dev->fd, BLKRESETZONE, &range);
if (ret != 0) {
ret = -errno;
ERR_MSG("ioctl BLKRESETZONE failed: errno=%d\n", errno);
}
return ret;
}
int f2fs_reset_zones(int j)
{
struct device_info *dev = c.devices + j;
@ -487,13 +509,19 @@ int f2fs_get_zone_blocks(int i)
int f2fs_check_zones(int i)
{
ERR_MSG("%d: Zoned block devices are not supported\n", i);
ERR_MSG("%d: Unsupported zoned block device\n", i);
return -1;
}
int f2fs_reset_zone(int i, void *blkzone)
{
ERR_MSG("%d: Unsupported zoned block device\n", i);
return -1;
}
int f2fs_reset_zones(int i)
{
ERR_MSG("%d: Zoned block devices are not supported\n", i);
ERR_MSG("%d: Unsupported zoned block device\n", i);
return -1;
}