10 static __le32 ext4_mmp_csum(struct super_block *sb, struct mmp_struct *mmp)  in ext4_mmp_csum()  argument
16 	csum = ext4_chksum(sbi, sbi->s_csum_seed, (char *)mmp, offset);  in ext4_mmp_csum()
21 static int ext4_mmp_csum_verify(struct super_block *sb, struct mmp_struct *mmp)  in ext4_mmp_csum_verify()  argument
26 	return mmp->mmp_checksum == ext4_mmp_csum(sb, mmp);  in ext4_mmp_csum_verify()
29 static void ext4_mmp_csum_set(struct super_block *sb, struct mmp_struct *mmp)  in ext4_mmp_csum_set()  argument
34 	mmp->mmp_checksum = ext4_mmp_csum(sb, mmp);  in ext4_mmp_csum_set()
43 	struct mmp_struct *mmp = (struct mmp_struct *)(bh->b_data);  in write_mmp_block()  local
50 	ext4_mmp_csum_set(sb, mmp);  in write_mmp_block()
71 	struct mmp_struct *mmp;  in read_mmp_block()  local
100 	mmp = (struct mmp_struct *)((*bh)->b_data);  in read_mmp_block()
101 	if (le32_to_cpu(mmp->mmp_magic) != EXT4_MMP_MAGIC)  in read_mmp_block()
103 	else if (!ext4_mmp_csum_verify(sb, mmp))  in read_mmp_block()
117 void __dump_mmp_msg(struct super_block *sb, struct mmp_struct *mmp,  in __dump_mmp_msg()  argument
124 		       (long long unsigned int) le64_to_cpu(mmp->mmp_time),  in __dump_mmp_msg()
125 		       mmp->mmp_nodename, mmp->mmp_bdevname);  in __dump_mmp_msg()
136 	struct mmp_struct *mmp;  in kmmpd()  local
147 	mmp = (struct mmp_struct *)(bh->b_data);  in kmmpd()
148 	mmp->mmp_time = cpu_to_le64(get_seconds());  in kmmpd()
155 	mmp->mmp_check_interval = cpu_to_le16(mmp_check_interval);  in kmmpd()
156 	bdevname(bh->b_bdev, mmp->mmp_bdevname);  in kmmpd()
158 	memcpy(mmp->mmp_nodename, init_utsname()->nodename,  in kmmpd()
159 	       sizeof(mmp->mmp_nodename));  in kmmpd()
165 		mmp->mmp_seq = cpu_to_le32(seq);  in kmmpd()
166 		mmp->mmp_time = cpu_to_le64(get_seconds());  in kmmpd()
220 			if (mmp->mmp_seq != mmp_check->mmp_seq ||  in kmmpd()
221 			    memcmp(mmp->mmp_nodename, mmp_check->mmp_nodename,  in kmmpd()
222 				   sizeof(mmp->mmp_nodename))) {  in kmmpd()
240 		mmp->mmp_check_interval = cpu_to_le16(mmp_check_interval);  in kmmpd()
246 	mmp->mmp_seq = cpu_to_le32(EXT4_MMP_SEQ_CLEAN);  in kmmpd()
247 	mmp->mmp_time = cpu_to_le64(get_seconds());  in kmmpd()
280 	struct mmp_struct *mmp = NULL;  in ext4_multi_mount_protect()  local
297 	mmp = (struct mmp_struct *)(bh->b_data);  in ext4_multi_mount_protect()
306 	if (le16_to_cpu(mmp->mmp_check_interval) > mmp_check_interval)  in ext4_multi_mount_protect()
307 		mmp_check_interval = le16_to_cpu(mmp->mmp_check_interval);  in ext4_multi_mount_protect()
309 	seq = le32_to_cpu(mmp->mmp_seq);  in ext4_multi_mount_protect()
314 		dump_mmp_msg(sb, mmp, "fsck is running on the filesystem");  in ext4_multi_mount_protect()
334 	mmp = (struct mmp_struct *)(bh->b_data);  in ext4_multi_mount_protect()
335 	if (seq != le32_to_cpu(mmp->mmp_seq)) {  in ext4_multi_mount_protect()
336 		dump_mmp_msg(sb, mmp,  in ext4_multi_mount_protect()
346 	mmp->mmp_seq = cpu_to_le32(seq);  in ext4_multi_mount_protect()
363 	mmp = (struct mmp_struct *)(bh->b_data);  in ext4_multi_mount_protect()
364 	if (seq != le32_to_cpu(mmp->mmp_seq)) {  in ext4_multi_mount_protect()
365 		dump_mmp_msg(sb, mmp,  in ext4_multi_mount_protect()
383 						      mmp->mmp_bdevname));  in ext4_multi_mount_protect()