Otherwise, after shrink, kernel will report below error message when we mount the image:
F2FS-fs (loop0): invalid crc_offset: 0 F2FS-fs (loop0): Wrong valid_user_blocks: 16404, user_block_count: 13312 F2FS-fs (loop0): Failed to get valid F2FS checkpoint mount(2) system call failed: Structure needs cleaning. Reported-by: beroal <[email protected]> Signed-off-by: Chao Yu <[email protected]> --- fsck/resize.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/fsck/resize.c b/fsck/resize.c index a083f68a809f..b043cd984dc6 100644 --- a/fsck/resize.c +++ b/fsck/resize.c @@ -650,8 +650,11 @@ static int f2fs_resize_shrink(struct f2fs_sb_info *sbi) struct f2fs_super_block *sb = F2FS_RAW_SUPER(sbi); struct f2fs_super_block new_sb_raw; struct f2fs_super_block *new_sb = &new_sb_raw; + struct f2fs_checkpoint *cp = F2FS_CKPT(sbi); block_t old_end_blkaddr, old_main_blkaddr; block_t new_end_blkaddr, new_main_blkaddr, tmp_end_blkaddr; + block_t user_block_count; + unsigned int overprov_segment_count; unsigned int offset; int err = -1; @@ -662,6 +665,17 @@ static int f2fs_resize_shrink(struct f2fs_sb_info *sbi) if (get_new_sb(new_sb)) return -1; + overprov_segment_count = (get_newsb(segment_count_main) - + c.new_reserved_segments) * + c.new_overprovision / 100; + overprov_segment_count += c.new_reserved_segments; + + user_block_count = (get_newsb(segment_count_main) - + overprov_segment_count) * c.blks_per_seg; + + if (get_cp(valid_block_count) > user_block_count) + return -1; + /* check nat availability */ if (get_sb(segment_count_nat) > get_newsb(segment_count_nat)) { err = shrink_nats(sbi, new_sb); -- 2.29.2 _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
