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Improve compile-time type checking for f2fs_report_zone()

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Change the type of the third argument of f2fs_report_zone() from void *
into struct blk_zone * to enable type checking.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Bart Van Assche 2022-06-23 11:12:06 -07:00 committed by sunshenshen
parent a491213a0d
commit cdd66bafeb
2 changed files with 18 additions and 10 deletions
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4
include/f2fs_fs.h
View File

@ -1560,9 +1560,11 @@ blk_zone_cond_str(struct blk_zone *blkz)
#endif
struct blk_zone;
extern int f2fs_get_zoned_model(int);
extern int f2fs_get_zone_blocks(int);
extern int f2fs_report_zone(int, uint64_t, void *);
extern int f2fs_report_zone(int, uint64_t, struct blk_zone *);
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);

24
lib/libf2fs_zoned.c
View File

@ -202,21 +202,26 @@ int f2fs_get_zone_blocks(int i)
return 0;
}
int f2fs_report_zone(int i, uint64_t sector, void *blkzone)
int f2fs_report_zone(int i, uint64_t sector, struct blk_zone *blkzone)
{
struct blk_zone *blkz = (struct blk_zone *)blkzone;
struct blk_zone_report *rep;
struct one_zone_report {
struct blk_zone_report rep;
struct blk_zone zone;
} *rep;
int ret = -1;
rep = calloc(1, sizeof(struct blk_zone_report) +
sizeof(struct blk_zone));
static_assert(sizeof(*rep) == sizeof(rep->rep) + sizeof(rep->zone), "");
rep = calloc(1, sizeof(*rep));
if (!rep) {
ERR_MSG("No memory for report zones\n");
return -ENOMEM;
}
rep->sector = sector;
rep->nr_zones = 1;
rep->rep = (struct blk_zone_report){
.sector = sector,
.nr_zones = 1,
};
ret = ioctl(c.devices[i].fd, BLKREPORTZONE, rep);
if (ret != 0) {
ret = -errno;
@ -224,7 +229,7 @@ int f2fs_report_zone(int i, uint64_t sector, void *blkzone)
goto out;
}
*blkz = *(struct blk_zone *)(rep + 1);
*blkzone = rep->zone;
out:
free(rep);
return ret;
@ -533,7 +538,8 @@ uint32_t f2fs_get_usable_segments(struct f2fs_super_block *sb)
#else
int f2fs_report_zone(int i, uint64_t UNUSED(sector), void *UNUSED(blkzone))
int f2fs_report_zone(int i, uint64_t UNUSED(sector),
struct blk_zone *UNUSED(blkzone))
{
ERR_MSG("%d: Unsupported zoned block device\n", i);
return -1;