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[ Upstream commitdc6d9ef57f] A zoned device can has both conventional zones and sequential zones, so we should not treat first segment of zoned device as first_zoned_segno, instead, we need to check zone type for each zone during traversing zoned device to find first_zoned_segno. Otherwise, for below case, first_zoned_segno will be 0, which could be wrong. create_null_blk 512 2 1024 1024 mkfs.f2fs -m /dev/nullb0 Testcase: export SCRIPTS_PATH=/share/git/scripts test multiple devices w/ zoned device for ((i=0;i<8;i++)) do { zonesize=$((2<<$i)) conzone=$((4096/$zonesize)) seqzone=$((4096/$zonesize)) $SCRIPTS_PATH/nullblk_create.sh 512 $zonesize $conzone $seqzone mkfs.f2fs -f -m /dev/vdb -c /dev/nullb0 mount /dev/vdb /mnt/f2fs touch /mnt/f2fs/file f2fs_io pinfile set /mnt/f2fs/file $((8589934592*2)) stat /mnt/f2fs/file df cat /proc/fs/f2fs/vdb/segment_info umount /mnt/f2fs $SCRIPTS_PATH/nullblk_remove.sh 0 } done test single zoned device for ((i=0;i<8;i++)) do { zonesize=$((2<<$i)) conzone=$((4096/$zonesize)) seqzone=$((4096/$zonesize)) $SCRIPTS_PATH/nullblk_create.sh 512 $zonesize $conzone $seqzone mkfs.f2fs -f -m /dev/nullb0 mount /dev/nullb0 /mnt/f2fs touch /mnt/f2fs/file f2fs_io pinfile set /mnt/f2fs/file $((8589934592*2)) stat /mnt/f2fs/file df cat /proc/fs/f2fs/nullb0/segment_info umount /mnt/f2fs $SCRIPTS_PATH/nullblk_remove.sh 0 } done Fixes:9703d69d9d("f2fs: support file pinning for zoned devices") Cc: Daeho Jeong <daehojeong@google.com> Signed-off-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>