beroal reported a mount failure due to broken valid_user_blocks.
[ 6890.647749] F2FS-fs (loop0): Wrong valid_user_blocks: 16040048,
user_block_count: 10016768
>From fsck,
segment_count_main [0x 9a95 : 39573]
-> 39573 * 2MB = 78GB as user space
overprov_segment_count [0x 4e29 : 20009]
-> 20009 * 2MB = 40GB as overprovisioned space which user can't see.
But,
[FSCK] valid_block_count matching with CP [Ok..] [0xf4c070]
-> 0xf4c070 = 16040048
valid_block_count [0x f4c070 : 16040048]
-> So, this is correct.
It turns out resize.f2fs gave very large and wrong overprovisioning space
result in shortage of user blocks. The root cause was f2fs_get_usable_segments()
didn't consider resize case which needs segment_count_main from new superblock.
Fixes: f8410857b7a8 ("f2fs-tools: zns zone-capacity support")
Signed-off-by: Jaegeuk Kim <[email protected]>
---
lib/libf2fs_zoned.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/lib/libf2fs_zoned.c b/lib/libf2fs_zoned.c
index 56c97d1a65f7..ce73b9af66ec 100644
--- a/lib/libf2fs_zoned.c
+++ b/lib/libf2fs_zoned.c
@@ -495,6 +495,9 @@ uint32_t f2fs_get_usable_segments(struct f2fs_super_block
*sb)
int i, j;
uint32_t usable_segs = 0, zone_segs;
+ if (c.func == RESIZE)
+ return get_sb(segment_count_main);
+
for (i = 0; i < c.ndevs; i++) {
if (c.devices[i].zoned_model != F2FS_ZONED_HM) {
usable_segs += c.devices[i].total_segments;
--
2.31.0.208.g409f899ff0-goog
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