allow 'safe' resizing leaving the metadata nearly unchanged.
Will likely need to adjust growing for the case where a fs
had previously shrunk without altering data, and the newly grown
fs would be smaller than the original. Probably makes sense to
case it out into metadata size changes, instead of fs size changes
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
zone_align_start_offset should be u64, but config.start_sector is u32,
so it may be overflow when computing zone_align_start_offset.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
f2fs-tools uses ioctl BLKSSZGET to get sector_size, however, this ioctl
will return a value which may be larger than 512 (according to the value
of q->limits.logical_block_size), then this will be inconsistent with
the start_sector, since start_sector is got from ioctl HDIO_GETGEO and
is always in 512 size unit for a sector. To fix this problem, just
change the sector_size to the default value when computing with
start_sector. And fix sectors_per_blk as well.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This patch add -O features for fsck.f2fs in order to tune the feature bits.
Currently, it supports -O encrypt only.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Resize rebuilds checkpoint with 6 summary blocks, so if
CP_COMPACT_SUM_FLAG is set in the old checkpoint, clear it.
Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
When wring the last nat_bits in new checkpoint, we call write_nat_bits()
to recover the nat_bits. But, we didn't update nm_i->nat_bitmap which we can
get the up-to-date nat blocks. After sit migration, old checkpoint has no
longer valid nat blocks, resulting in wrong free nid allocation at the following
mount time.
Let's indicate new nat_blocks by adjusting nat_bitmap in nat migration.
Reported-by: Lianjun Huang <huanglianjun@vivo.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
For the same reason as "mkfs.f2fs: fix to calculate
left space of checkpoint page correctly",
this patch also fixes miscalculatation in resize.f2fs.
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
resize.f2fs rebuilds a new checkpoint at the new position. Its
checkpoint_ver should be increased.
Signed-off-by: Shuoran Liu <liushuoran@huawei.com>
Signed-off-by: Weichao Guo <guoweichao@huawei.com>
Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This patch remove unused parameters in these three functions:
get_new_sb, migrate_main and rebuild_superblock
Signed-off-by: Yunlei He <heyunlei@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
If the offset passed in migrate_ssa is not zero, it means that there're
offset segments of old main will disappear after migrating, then there're
offset blocks of old ssa should be invalidated and removed accordingly.
So, the number of moved ssa blocks should be: TOTAL_SEGS(sbi) - offset,
and the expanded summary, which is filled with zero_blocks, should start
from: new_sum_blkaddr + TOTAL_SEGS(sbi) - offset.
Signed-off-by: Yunlei He <heyunlei@huawei.com>
Signed-off-by: Junling Zheng <zhengjunling@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
When we move whole main area into new expanded area, we do not change its
segment numbers from sit and ssa.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This patch replace the overprovision calculation method from
mkfs tool.
Signed-off-by: Yunlei He <heyunlei@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Now user can expand existing partition with resize.f2fs.
Currently, it doesn't support shrink an image.
For example,
# resize.f2fs -t [# of sectors] [image]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
