If curseg is not the first segment in its zone, the zone is not empty,
and it should not be reset. This issue could be reproduced by:
modprobe null_blk nr_devices=1 zoned=1 zone_max_open=6
zone_max_active=6 zone_size=1024 gb=30
# /dev/vda is 4G
mkfs.f2fs -m -c /dev/nullb0 /dev/vda -f
while :; do
mount /dev/vda /mnt/
dd if=/dev/zero of=/mnt/file bs=4K count=11 conv=fsync
status=none
if [ $? -ne 0 ]; then
umount /mnt
break
fi
f2fs_io shutdown 1 /mnt/file
umount /mnt
done
And the error looks like:
[ 123.169852] I/O error, dev nullb0, sector 41951232 op 0x1:(WRITE) flags
0x800 phys_seg 10 prio class 0
[ 123.173070] F2FS-fs (vda): do_checkpoint failed err:-5, stop checkpoint
dd: error writing '/mnt/testfile': Input/output error
Signed-off-by: Sheng Yong <shengy...@oppo.com>
---
fs/f2fs/segment.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 4c8836ded90fc..50b38cbe33401 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -5004,7 +5004,8 @@ static int fix_curseg_write_pointer(struct f2fs_sb_info
*sbi, int type)
}
/* Allocate a new section if it's not new. */
- if (cs->next_blkoff) {
+ if (cs->next_blkoff ||
+ cs->segno != GET_SEG_FROM_SEC(sbi, GET_ZONE_FROM_SEC(sbi,
cs_section))) {
unsigned int old_segno = cs->segno, old_blkoff =
cs->next_blkoff;
f2fs_allocate_new_section(sbi, type, true);
--
2.40.1
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