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This patch implements loading files into the existing partition.
For example,
# sload.f2fs -f ./ /dev/sdb1
Then, all the directories and files will be loaded into /dev/sdb1.
By default, newly files should have inline_data and inline_xattr, if possible.
Signed-off-by: Hou Pengyang <houpengyang@huawei.com>
Signed-off-by: Liu Shuoran <liushuoran@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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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>
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Struct f2fs_summary_block has been changed in upstream commits:
- commit 8f1dbbbbdfe9 ("f2fs: introduce lifetime write IO statistics")
- commit dfc08a12e49a ("f2fs: introduce f2fs_journal struct to wrap journal info")
This patch does the sync work for f2fs_summary_block structure between
f2fs-utils and f2fs kernel module.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This patch improves the allocation speed.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This tool tries to move the valid blocks ranging from blkaddr to blkaddr + len
to targeted blkaddr with a direction like expand or shrink.
The option includes:
-d debug level [default:0]
-s start block address [default: main_blkaddr]
-l length [default:512 (2MB)]
-t target block address [default: main_blkaddr + 2MB]
-i set direction as shrink [default: expand]
For example,
# defrag.f2fs -s 0x100 -l 0x10 -t 0x4000 /dev/sdb1
This will move data blocks between 0x100 and 0x110 to the right side of
0x4000 space.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This patch checks alloc_type of current segment type.
If it is LFS, the last of segment should have no valid block.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This patch adds to return summry_block pointer to callers, which will be used
when fixing them.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This assert message is unnecessary to be shown, since caller shows the reason
already.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This patch adds to show cp_state during fsck.f2fs.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This patch introduces a feature to dump owner information of given block
address.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This patch removed a false alarm when detecting any inconsistency in SIT types.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This patch implements inline_dentry feature.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This patch avoids assert when nid has wrong block address.
Let's fix this.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Just use list_head only.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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If block allocation is made to the next block offset, we should drop that
block.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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- fix nat entries
- fix sit entries
- fix checkpoint
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Fix wrong coding style.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This patch support large volume over about 3TB.
Signed-off-by: Changman Lee <cm224.lee@samsung.com>
[Jaegeuk Kim: add missing cp_payload in f2fs_super_block]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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fsck.f2fs checks file system consistency, but does not repair a broken
file system yet.
dump.f2fs shows the information of a specific inode and makes dump file
of SSA and SIT.
f2fs checks file system consistency as follows:
o When data about used area and its metadata are identical,
f2fs is considered consistent. To verify such consistency, we use
three bitmaps: nat_area_bitmap, sit_area_bitmap, and main_area_bitmap.
First, each bit in nat_area_bitmap corresponds to a nid in NAT.
Second, each bit in sit_area_bitmap corresponds to a valid block in a
segment. This bitmap is same to the total valid_map of f2fs_sit_entries
in SIT.
Last, each bit in main_area_bitmap corresponds to a block in main area
except meta area.
After a consistency check of each block, we set or clear the
corresponding bit of each bitmap.
From the root node, we start consistency check. The verified
information varies according to block type.
1. NODE
- Read information of node block from NAT
- Check if block address is allocated using node info.
- Check if the type of f2fs_summary related to nid in SSA is NODE.
- Update the corresponding bit in nat_area_bitmap.
- Update the corresponding bit in sit_area_bitmap.
- Set the corresponding bit in main_area_bitmap to 1.
- Then, read node block. According to its attribute, explore
inode/direct node/indirect node/double indirect node
recursively.
- If it is an inode block, we also check its xattr and hard link.
2. DATA
- Check if the type of f2fs_summary related to nid in SSA is DATA.
- Set the corresponding bits of sit_area_bitmap and
main_area_bitmap to visited
- If it is a dentry block, traverse each dentries that may be
regular
file or directory. At this time, it will check inode block again.
Finally, we verify whether
- every nat_area_bitmap is visited
- any unreachable hard link exists
- values of sit_area_bitmap and main_area_bitmap are identical
- total_valid_block_count/node_count/inode_count are correct
Usage:
o fsck.f2fs
# fsck.f2fs /dev/sdx
options:
-d debug level [default:0]
o dump.f2fs
# dump.f2fs -i [ino] /dev/sdx
# dump.f2fs -s 0~-1 /dev/sdx (SIT dump)
# dump.f2fs -a 0~-1 /dev/sdx (SSA dump)
options:
-d debug level [default:0]
-i inode no (hex)
-s [SIT dump segno from #1~#2 (decimal), for all 0~-1]
-a [SSA dump segno from #1~#2 (decimal), for all 0~-1]
Note: To use dump.f2fs, please run make install or ln -s fsck.f2fs
dump.f2fs
Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Byoung Geun Kim <bgbg.kim@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
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