ref: a3f2d6d23ed1be69fee607bdedadc0438fd01305
dir: /sys/src/cmd/ext4srv/include/ext4_ialloc.h/
#pragma once #include "ext4_config.h" #include "ext4_types.h" /**@brief Calculate and set checksum of inode bitmap. * @param fs fs pointer. * @param bg block group * @param bitmap bitmap buffer */ void ext4_ialloc_set_bitmap_csum(struct ext4_fs *fs, struct ext4_bgroup *bg, void *bitmap); /**@brief Free i-node number and modify filesystem data structers. * @param fs Filesystem, where the i-node is located * @param index Index of i-node to be release * @param is_dir Flag us for information whether i-node is directory or not */ int ext4_ialloc_free_inode(struct ext4_fs *fs, u32int index, bool is_dir); /**@brief I-node allocation algorithm. * This is more simple algorithm, than Orlov allocator used * in the Linux kernel. * @param fs Filesystem to allocate i-node on * @param index Output value - allocated i-node number * @param is_dir Flag if allocated i-node will be file or directory * @return Error code */ int ext4_ialloc_alloc_inode(struct ext4_fs *fs, u32int *index, bool is_dir);