mtd-utils.git/ubifs-utils/fsck.ubifs/check_space.c, branch v2.3.1

fsck.ubifs: Check and correct the index size

2024-11-11T09:32:46+00:00

This is the 14/18 step of fsck. Check and correct the index size by traversing TNC just like dbg_check_idx_size does. This step should be executed after first committing, because 'c->calc_idx_sz' can be changed in 'ubifs_tnc_start_commit' and the initial value of 'c->calc_idx_sz' read from disk is untrusted. Signed-off-by: Zhihao Cheng Signed-off-by: David Oberhollenzer

fsck.ubifs: check and correct the space statistics

2024-11-11T09:32:46+00:00

This is the 12/18 step of fsck. Check and correct the space statistics. There could be following steps and possible errors: Step 1. Exit for check mode, if %FR_LPT_CORRUPTED or %FR_LPT_INCORRECT is set in lpt status, the exit code should have %FSCK_UNCORRECTED. Step 2. Check lpt status, if %FR_LPT_CORRUPTED is set in lpt status, normal mode with 'no' answer will exit, other modes will rebuild lpt. Step 3. Traverse LPT nodes, check the correctness of nnode and pnode, compare LEB scanning result with LEB properties. a. LPT node is corrupted, normal mode with 'no' answer will exit, rebuild lpt for other modes. b. Incorrect nnode/pnode, normal mode with 'no' answer will exit, other other modes will correct the nnode/pnode. c. Inconsistent comparing result, normal mode with 'no' answer will exit, other modes will correct the space statistics. Step 4. Check and correct the lprops table information. Step 5. Set gc lnum(ubifs_rcvry_gc_commit / take_gc_lnum). Signed-off-by: Zhihao Cheng Signed-off-by: David Oberhollenzer

fsck.ubifs: Move common functions and data structures into check_space.c

2024-11-11T09:32:46+00:00

This is a preparation for adding LPT checking support. Move some data structures and functions into check_space.c, also factor out some common functions in libubifs: 1. Move 'lpts' from rebuild module, make it resuable for non-rebuild_fs modes. 2. Move function 'get_free_leb' from rebuild_fs.c, it could be reused in building LPT. 3. Move function 'build_lpt' from rebuild_fs.c, it could be reused in building LPT. 4. Factor out lpt nodes freeing into a new function ubifs_free_lpt_nodes. 5. Factor out nnode dirty marking implementations into a new function ubifs_make_nnode_dirty. 5. Export the function of nnode number calculation, calc_nnode_num is renamed as ubifs_calc_nnode_num. 6. Export the function of making pnode dirty, do_make_pnode_dirty is renamed as ubifs_make_pnode_dirty. 7. Rename next_pnode_to_dirty to ubifs_find_next_pnode and export it. 8. Export free_buds and expend its parameters. Signed-off-by: Zhihao Cheng Signed-off-by: David Oberhollenzer