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()
102 	    !ext4_mmp_csum_verify(sb, mmp))  in read_mmp_block()
111 void __dump_mmp_msg(struct super_block *sb, struct mmp_struct *mmp,  in __dump_mmp_msg()  argument
118 		       (long long unsigned int) le64_to_cpu(mmp->mmp_time),  in __dump_mmp_msg()
119 		       mmp->mmp_nodename, mmp->mmp_bdevname);  in __dump_mmp_msg()
130 	struct mmp_struct *mmp;  in kmmpd()  local
141 	mmp = (struct mmp_struct *)(bh->b_data);  in kmmpd()
142 	mmp->mmp_time = cpu_to_le64(get_seconds());  in kmmpd()
149 	mmp->mmp_check_interval = cpu_to_le16(mmp_check_interval);  in kmmpd()
150 	bdevname(bh->b_bdev, mmp->mmp_bdevname);  in kmmpd()
152 	memcpy(mmp->mmp_nodename, init_utsname()->nodename,  in kmmpd()
153 	       sizeof(mmp->mmp_nodename));  in kmmpd()
159 		mmp->mmp_seq = cpu_to_le32(seq);  in kmmpd()
160 		mmp->mmp_time = cpu_to_le64(get_seconds());  in kmmpd()
214 			if (mmp->mmp_seq != mmp_check->mmp_seq ||  in kmmpd()
215 			    memcmp(mmp->mmp_nodename, mmp_check->mmp_nodename,  in kmmpd()
216 				   sizeof(mmp->mmp_nodename))) {  in kmmpd()
234 		mmp->mmp_check_interval = cpu_to_le16(mmp_check_interval);  in kmmpd()
240 	mmp->mmp_seq = cpu_to_le32(EXT4_MMP_SEQ_CLEAN);  in kmmpd()
241 	mmp->mmp_time = cpu_to_le64(get_seconds());  in kmmpd()
274 	struct mmp_struct *mmp = NULL;  in ext4_multi_mount_protect()  local
291 	mmp = (struct mmp_struct *)(bh->b_data);  in ext4_multi_mount_protect()
300 	if (le16_to_cpu(mmp->mmp_check_interval) > mmp_check_interval)  in ext4_multi_mount_protect()
301 		mmp_check_interval = le16_to_cpu(mmp->mmp_check_interval);  in ext4_multi_mount_protect()
303 	seq = le32_to_cpu(mmp->mmp_seq);  in ext4_multi_mount_protect()
308 		dump_mmp_msg(sb, mmp, "fsck is running on the filesystem");  in ext4_multi_mount_protect()
328 	mmp = (struct mmp_struct *)(bh->b_data);  in ext4_multi_mount_protect()
329 	if (seq != le32_to_cpu(mmp->mmp_seq)) {  in ext4_multi_mount_protect()
330 		dump_mmp_msg(sb, mmp,  in ext4_multi_mount_protect()
340 	mmp->mmp_seq = cpu_to_le32(seq);  in ext4_multi_mount_protect()
357 	mmp = (struct mmp_struct *)(bh->b_data);  in ext4_multi_mount_protect()
358 	if (seq != le32_to_cpu(mmp->mmp_seq)) {  in ext4_multi_mount_protect()
359 		dump_mmp_msg(sb, mmp,  in ext4_multi_mount_protect()
377 						      mmp->mmp_bdevname));  in ext4_multi_mount_protect()