s_header 1522 fs/jbd2/journal.c if (sb->s_header.h_magic != cpu_to_be32(JBD2_MAGIC_NUMBER) || s_header 1528 fs/jbd2/journal.c switch(be32_to_cpu(sb->s_header.h_blocktype)) { s_header 228 include/linux/jbd2.h journal_header_t s_header;