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2024-11-11ubifs-utils: Adapt lpt subsystem in libubifsZhihao Cheng
Adapt lpt subsystem(lpt.c,lprops.c,lpt_commit.c) in libubifs, compared with linux kernel implementations: 1. Remove debug related functions(eg. dbg_chk_lpt_sz, dbg_chk_pnode), some of debug functions are not needed by fsck, because fsck will check fs in another way. 2. Remove some functions(eg. ubifs_create_dflt_lpt) which won't be used in fsck/mkfs. 3. Adapt do_calc_lpt_geom() to mkfs/fsck situations. 4. Adapt calc_dflt_lpt_geom to support the mkfs tool, and export it. 5. Adapt ubifs_create_lpt() according to create_lpt(mkfs), make sure that the height of created lpt is right. Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2024-11-11ubifs-utils: Adapt io.c in libubifsZhihao Cheng
Adapt io.c in libubifs, compared with linux kernel implementations: 1. Modify io related functions(eg. ubifs_leb_read/ubifs_leb_write, etc.), adapt them with userspace io functions lseek/read/write. 2. Remove some functions(eg. record_magic_error, ubifs_bg_wbufs_sync) which won't be used in fsck/mkfs. 3. Replce ubifs_errc with ubifs_err, because there will be no SB_SILENT options in mkfs/fsck. 4. Initiate wbuf->size as c->max_write_size. Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2024-11-11ubifs-utils: Adapt super.c in libubifsZhihao Cheng
Adapt super.c in libubifs, compared with linux kernel implementations: 1. It contains all definitions in common/super.c(Message printing functions are replaced with linux kernel styles). 2. Remove some functions(eg. ubifs_iget, ubifs_dirty_inode) which won't be used in fsck/mkfs. 3. Remove unused variables initialization in some functions(eg. init_constants_early, init_constants_sb). Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2024-11-11ubifs-utils: Adapt ubifs header file in libubifsZhihao Cheng
Adapt ubifs header file in libubifs, compared with linux kernel implementations: 1. New header file contains all definitions in common/ubifs.h 2. Remove some structures(eg. ubifs_mount_opts, bu_info) and functions(eg. ubifs_sync_wbufs_by_inode, ubifs_jnl_XXX) which won't be used in fsck/mkfs. 3. Modify some authentication related functions, keep functions that mkfs may need, other functions are defined as empty. 4. Move ubifs message printing functions(ubifs_err/warn/msg) which are originally defined in misc.c into ubifs.h. Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2024-11-11ubifs-utils: Import UBIFS libs from linux kernelZhihao Cheng
Import UBIFS libs from linux kernel. Next patches will replace ubifs related source code with implementation of linux kernel, which makes userspace implementation be same with linux kernel, then fsck.ubifs can resuse the code. Notice: lpt.c is modified with [1] applied. ubifs.h and orphan.c are modified with [2] applied, journal.c is modified with [3] reverted( because fsck runs in a single thread, so waitqueue is not needed to be implemented in userspace.). [1] https://lore.kernel.org/linux-mtd/20231228014112.2836317-13-chengzhihao1@huawei.com/ [2] https://lore.kernel.org/linux-mtd/20240410073751.2522830-1-chengzhihao1@huawei.com/ [3] https://lore.kernel.org/linux-mtd/20240122063103.359501-1-chengzhihao1@huawei.com/ Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>