Lines Matching refs:fs
66 static unsigned int calc_reserved_gdt_blocks(ext2_filsys fs) in calc_reserved_gdt_blocks() argument
68 struct ext2_super_block *sb = fs->super; in calc_reserved_gdt_blocks()
81 rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) - fs->desc_blocks; in calc_reserved_gdt_blocks()
96 ext2_filsys fs; in ext2fs_initialize() local
114 retval = ext2fs_get_mem(sizeof(struct struct_ext2_filsys), &fs); in ext2fs_initialize()
118 memset(fs, 0, sizeof(struct struct_ext2_filsys)); in ext2fs_initialize()
119 fs->magic = EXT2_ET_MAGIC_EXT2FS_FILSYS; in ext2fs_initialize()
120 fs->flags = flags | EXT2_FLAG_RW; in ext2fs_initialize()
121 fs->umask = 022; in ext2fs_initialize()
123 fs->flags |= EXT2_FLAG_SWAP_BYTES; in ext2fs_initialize()
128 retval = manager->open(name, io_flags, &fs->io); in ext2fs_initialize()
131 fs->image_io = fs->io; in ext2fs_initialize()
132 fs->io->app_data = fs; in ext2fs_initialize()
133 retval = ext2fs_get_mem(strlen(name)+1, &fs->device_name); in ext2fs_initialize()
137 strcpy(fs->device_name, name); in ext2fs_initialize()
141 fs->super = super; in ext2fs_initialize()
189 super->s_mkfs_time = super->s_lastcheck = fs->now ? fs->now : time(NULL); in ext2fs_initialize()
193 fs->blocksize = EXT2_BLOCK_SIZE(super); in ext2fs_initialize()
194 fs->fragsize = EXT2_FRAG_SIZE(super); in ext2fs_initialize()
195 frags_per_block = fs->blocksize / fs->fragsize; in ext2fs_initialize()
198 set_field(s_blocks_per_group, fs->blocksize * 8); in ext2fs_initialize()
215 fs->group_desc_count = 0; in ext2fs_initialize()
216 ext2fs_mark_super_dirty(fs); in ext2fs_initialize()
217 *ret_fs = fs; in ext2fs_initialize()
222 fs->group_desc_count = ext2fs_div_ceil(super->s_blocks_count - in ext2fs_initialize()
225 if (fs->group_desc_count == 0) { in ext2fs_initialize()
229 fs->desc_blocks = ext2fs_div_ceil(fs->group_desc_count, in ext2fs_initialize()
232 i = fs->blocksize >= 4096 ? 1 : 4096 / fs->blocksize; in ext2fs_initialize()
248 ipg = ext2fs_div_ceil(super->s_inodes_count, fs->group_desc_count); in ext2fs_initialize()
249 if (ipg > fs->blocksize * 8) { in ext2fs_initialize()
274 fs->inode_blocks_per_group = (((super->s_inodes_per_group * in ext2fs_initialize()
278 super->s_inodes_per_group = ((fs->inode_blocks_per_group * in ext2fs_initialize()
287 fs->inode_blocks_per_group = (((super->s_inodes_per_group * in ext2fs_initialize()
295 if ((__u64)super->s_inodes_per_group * fs->group_desc_count > ~0U) { in ext2fs_initialize()
300 fs->group_desc_count; in ext2fs_initialize()
307 rsv_gdt = calc_reserved_gdt_blocks(fs); in ext2fs_initialize()
322 overhead = (int) (3 + fs->inode_blocks_per_group + in ext2fs_initialize()
323 fs->desc_blocks + super->s_reserved_gdt_blocks); in ext2fs_initialize()
338 overhead = (int) (2 + fs->inode_blocks_per_group); in ext2fs_initialize()
339 if (ext2fs_bg_has_super(fs, fs->group_desc_count - 1)) in ext2fs_initialize()
340 overhead += 1 + fs->desc_blocks + super->s_reserved_gdt_blocks; in ext2fs_initialize()
343 if ((fs->group_desc_count == 1) && rem && (rem < overhead)) { in ext2fs_initialize()
358 retval = ext2fs_get_mem(strlen(fs->device_name) + 80, &buf); in ext2fs_initialize()
363 strcat(buf, fs->device_name); in ext2fs_initialize()
364 retval = ext2fs_allocate_block_bitmap(fs, buf, &fs->block_map); in ext2fs_initialize()
369 strcat(buf, fs->device_name); in ext2fs_initialize()
370 retval = ext2fs_allocate_inode_bitmap(fs, buf, &fs->inode_map); in ext2fs_initialize()
376 retval = ext2fs_get_array(fs->desc_blocks, fs->blocksize, in ext2fs_initialize()
377 &fs->group_desc); in ext2fs_initialize()
381 memset(fs->group_desc, 0, (size_t) fs->desc_blocks * fs->blocksize); in ext2fs_initialize()
395 csum_flag = EXT2_HAS_RO_COMPAT_FEATURE(fs->super, in ext2fs_initialize()
397 for (i = 0; i < fs->group_desc_count; i++) { in ext2fs_initialize()
403 if (i != fs->group_desc_count - 1) in ext2fs_initialize()
404 fs->group_desc[i].bg_flags |= in ext2fs_initialize()
406 fs->group_desc[i].bg_flags |= EXT2_BG_INODE_UNINIT; in ext2fs_initialize()
410 fs->group_desc[i].bg_itable_unused = numblocks; in ext2fs_initialize()
412 numblocks = ext2fs_reserve_super_and_bgd(fs, i, fs->block_map); in ext2fs_initialize()
413 if (fs->super->s_log_groups_per_flex) in ext2fs_initialize()
414 numblocks += 2 + fs->inode_blocks_per_group; in ext2fs_initialize()
417 fs->group_desc[i].bg_free_blocks_count = numblocks; in ext2fs_initialize()
418 fs->group_desc[i].bg_free_inodes_count = in ext2fs_initialize()
419 fs->super->s_inodes_per_group; in ext2fs_initialize()
420 fs->group_desc[i].bg_used_dirs_count = 0; in ext2fs_initialize()
421 ext2fs_group_desc_csum_set(fs, i); in ext2fs_initialize()
431 ext2fs_mark_super_dirty(fs); in ext2fs_initialize()
432 ext2fs_mark_bb_dirty(fs); in ext2fs_initialize()
433 ext2fs_mark_ib_dirty(fs); in ext2fs_initialize()
435 io_channel_set_blksize(fs->io, fs->blocksize); in ext2fs_initialize()
437 *ret_fs = fs; in ext2fs_initialize()
441 ext2fs_free(fs); in ext2fs_initialize()