Commit 0b8e0bd4 authored by Zhang Yi's avatar Zhang Yi Committed by Theodore Ts'o
Browse files

ext4: factor out is_special_ino() 



Factor out the helper is_special_ino() to facilitate the checking of
special inodes in the subsequent patches.

Signed-off-by: default avatarZhang Yi <yi.zhang@huawei.com>
Link: https://patch.msgid.link/20250423085257.122685-7-yi.zhang@huaweicloud.com


Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
parent f22a0ef2

fs/ext4/ext4.h

+11 −0
Original line number Diff line number Diff line
@@ -3055,6 +3055,17 @@ extern void ext4_da_update_reserve_space(struct inode *inode, 
extern int ext4_issue_zeroout(struct inode *inode, ext4_lblk_t lblk,

			      ext4_fsblk_t pblk, ext4_lblk_t len);



static inline bool is_special_ino(struct super_block *sb, unsigned long ino)

{

	struct ext4_super_block *es = EXT4_SB(sb)->s_es;



	return (ino < EXT4_FIRST_INO(sb) && ino != EXT4_ROOT_INO) ||

		ino == le32_to_cpu(es->s_usr_quota_inum) ||

		ino == le32_to_cpu(es->s_grp_quota_inum) ||

		ino == le32_to_cpu(es->s_prj_quota_inum) ||

		ino == le32_to_cpu(es->s_orphan_file_inum);

}



/* indirect.c */

extern int ext4_ind_map_blocks(handle_t *handle, struct inode *inode,

				struct ext4_map_blocks *map, int flags);

fs/ext4/inode.c

+1 −6
Original line number Diff line number Diff line
@@ -4797,12 +4797,7 @@ struct inode *__ext4_iget(struct super_block *sb, unsigned long ino, 
	gid_t i_gid;

	projid_t i_projid;



	if ((!(flags & EXT4_IGET_SPECIAL) &&

	     ((ino < EXT4_FIRST_INO(sb) && ino != EXT4_ROOT_INO) ||

	      ino == le32_to_cpu(es->s_usr_quota_inum) ||

	      ino == le32_to_cpu(es->s_grp_quota_inum) ||

	      ino == le32_to_cpu(es->s_prj_quota_inum) ||

	      ino == le32_to_cpu(es->s_orphan_file_inum))) ||

	if ((!(flags & EXT4_IGET_SPECIAL) && is_special_ino(sb, ino)) ||

	    (ino < EXT4_ROOT_INO) ||

	    (ino > le32_to_cpu(es->s_inodes_count))) {

		if (flags & EXT4_IGET_HANDLE)