This tool prints /sys/kernel/debug/f2fs/status in sec so that we
can monitor variation of f2fs status.
Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Currently mkfs followed by fsck will fail with
[f2fs_crc_valid: 351] CRC validation failed: cal_crc = 4076150800 blk_crc = 0 buff_size = 0x0
This is because the validatie_checkpoint() tries to read and checksum the
cp page 2, and it is invoked on both cp packs.
But format only writes the page 1 of the 2nd checkpoint pack.
Signed-off-by: JP Abgrall <jpa@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Would do 64 BITS_PER_LONG when CONFIG_64BIT was NOT defined,
causing BITS_PER_LONG to be wrong on 32bit systems.
Signed-off-by: JP Abgrall <jpa@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This change allows for f2fs_format to work on a non-standard device (e.g.
sparse-memory backed file).
Removes direct access to config.fd from within f2fs_format.c.
Now, f2fs_format_device() can be made to work against any device by
providing
f2fs_finalize_device()
f2fs_trim_device()
and the lib2fs.c functions
ASCIIToUNICODE
dev_write
f2fs_cal_crc32
f2fs_set_bit
log_base_2
This will allow Android's fastboot to use f2fs against a libsparse.
Signed-off-by: JP Abgrall <jpa@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Add inline data check
Signed-off-by: Weihong Xu <weihong.xu@intel.com>
Signed-off-by: Huajun Li <huajun.li@intel.com>
Signed-off-by: Haicheng Li <haicheng.li@linux.intel.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
If the device does not support discard, we should write zero blocks
to avoid roll-forward recovery.
Reported-and-tested-by: Huajun Li <huajun.li@intel.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Previously, fsck handles only the orphan inode block excpet its indirect node
blocks.
This causes false-alarm, unreachable nat entries [xxx].
This patch fixes to cover indirect node blocks in an orphan inode.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
1. dumpf2fs.sh
: to see internal device with hexdump
2. spo_test.sh
: to run SPOR
3. tracepoint.sh
: to turn on tracepoints
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
The device files use i_addr or i_nid fields for their rdev numbers.
So, fsck should skip to check block addresses inside of them.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
flash devices support discard therefore discard is default but not set
in config
Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
The fibmap tool is for debugging f2fs especially.
CC: Changman Lee <cm224.lee@samsung.com>
CC: Jan Engelhardt <jengelh@inai.de>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This patch shows stat information about a file with fragmented state.
Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This patch adds debug message to confirm xattr block is checked.
Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
In the case of lazy umount, "umount -l", some processes are able to use the
file system even if its mountpoint was disconnected.
At this moment, we should not allow mkfs.f2fs.
This patch adds this condition check.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This patch supports both hex and decimal when using nid as option.
Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
The debug message is too verbose therefore decrease message.
Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This is to get physical location of file data.
We can check the percentage of fragmentation on a file.
Note that it uses fsync to get exact blkaddr.
Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This patch is to dump inode which blkaddr belongs in.
Usage:
dump.f2fs /dev/sdx -b blk_addr (in 4KB)
Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Android systems uses apks for their application packages.
These files are normally used as read-only.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
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>
We can count the main area as the data zones. Remove the '-1' miscalcuation.
Signed-off-by: Wang Sheng-Hui <shhuiw@gmail.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This patch fixes a bug in the function "f2fs_update_nat_root", where the
access to the array "nat_blk->entries" was done using an index without
encapsulation of the "le32_to_cpu" macro.
The bug happens when trying to format an SD card in a powerpc architecture,
which natively runs at big-endian mode
Signed-off-by: Oded Gabbay <ogabbay@advaoptical.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This patch adds an option to disable trim command at format.
Default operation sends trim command to device.
Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Mkfs copies labels up to 512 characters into a the 16 character buffer
config.vol_label corrupting memory afterwards and causing a core dump.
# mkfs.f2fs -l aaaaaaaaaabbbbbbbbbbcccccccccc /dev/sda12
F2FS-tools: mkfs.f2fs Ver: 1.1.0 (2013-03-08)
Info: Label = aaaaaaaaaabbbbbbbbbbcccccccccc
Info: sector size = 512
Info: total sectors = 2097152 (in 512bytes)
Info: zone aligned segment0 blkaddr: 256
Segmentation fault (core dumped)
Make config.vol_label a pointer to the label in argv, rather than
copying it into a too small buffer.
Signed-off-by: Mike Fleetwood <mike.fleetwood@googlemail.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
In case of embedded devices, where /etc/ is mounted as 'read-only'.
We donot have the /etc/mtab file. So, checking if the device is already
mounted from this file is not sufficient.
Try to read /proc/mounts in case of failure from /etc/mtab.
Issue logs:
/dev/sdb4 /mnt vfat rw,relatime,fmask=0022,dmask=0022,codepage=cp437,
iocharset=ascii,errors=remount-ro 0 0
Here device - sb4 is already mounted.
But, when trying to format using mkfs.f2fs
F2FS-tools: Ver: 1.1.0 (2013-01-14)
Info: sector size = 512
Info: total sectors = 13108784 (in 512bytes)
WARN: Align start sector number in a unit of pages
i.e., start sector: 2542124, ofs:4 (sectors per page: 8)
Info: zone aligned segment0 blkaddr: 186
Info: This device doesn't support TRIM
Info: format successful
After Change:
F2FS-tools: Ver: 1.1.0 (2013-01-14)
Error: /dev/sdb4 is already mounted
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
By default, we should use dynamic linking.
If anyone need to build 100% statically, add -all-static.
This reverts commit 2eb19102d4c5bec57c04c944ee697584a493ef9c.
Rearrange positions of all the data structures for easy synchronization between
f2fs-tools and f2fs kernel sources.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This is due to GC on data sections.
When a data section is cleaned, it produces maximum same number of dirty node
blocks additionally.
So, we should reserve x2 sections to flush dirty node blocks safely.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
