This patch adds to support compression, introducing '-O compression'
option to enable this feature in image.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Previously, we don't allow block allocation on unclean umounted image,
result in failing to repair quota system file.
In this patch, we port most recovery codes from kernel to userspace
tools, so that on unclean image, during fsck initialization, we will
record all data/node block address we may recover in kernel, and
then during allocation of quota file repair, we can skip those blocks
to avoid block use conflict.
Eventually, if free space is enough, we can repair the quota system
file on an unclean umounted image.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
[Jaegeuk Kim: remove unnecessary parameter]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This patch adds an option 'extra_attr' in mkfs for enabling v2 f2fs
inode format in kernel codes.
Also this patch makes fsck to support recognize v2 inode format,
below is v2 format description:
Original one:
struct f2fs_inode {
...
struct f2fs_extent i_ext;
__le32 i_addr[DEF_ADDRS_PER_INODE];
__le32 i_nid[DEF_NIDS_PER_INODE];
}
Extended one:
struct f2fs_inode {
...
struct f2fs_extent i_ext;
union {
struct {
__le16 i_extra_isize;
__le16 i_padding;
__le32 i_extra_end[0];
};
__le32 i_addr[DEF_ADDRS_PER_INODE];
};
__le32 i_nid[DEF_NIDS_PER_INODE];
}
Once F2FS_EXTRA_ATTR is set, we will steal four bytes in the head of
i_addr field for storing i_extra_isize and i_padding. with i_extra_isize,
we can calculate actual size of reserved space in i_addr, available
attribute fields included in total extra attribute fields for current
inode can be described as below:
+--------------------+
| .i_mode |
| ... |
| .i_ext |
+--------------------+
| .i_extra_isize |-----+
| .i_padding | |
| .i_prjid | |
| .i_atime_extra | |
| .i_ctime_extra | |
| .i_mtime_extra |<----+
| .i_inode_cs |<----- store blkaddr/inline from here
| .i_xattr_cs |
| ... |
+--------------------+
| |
| block address |
| |
+--------------------+
| .i_nid |
+--------------------+
| node_footer |
| (nid, ino, offset) |
+--------------------+
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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>
