Lines Matching refs:magic
40 magic number in the metadata block, we have no other way of identifying what it
66 Luckily, almost all XFS metadata has magic numbers embedded already - only the
68 magic numbers. Hence we can change the on-disk format of all these objects to
69 add more identifying information and detect this simply by changing the magic
70 numbers in the metadata objects. That is, if it has the current magic number,
71 the metadata isn't self identifying. If it contains a new magic number, it is
171 The first step in read verification is checking the magic number and determining
191 __be32 magic; /* magic number */
212 - directory/attribute node blocks have a 16 bit magic number, and the
213 header that contains the magic number has other information in it as
241 whether the magic number can be used to determine the format of the block. In
251 if (hdr->magic != cpu_to_be32(XFS_FOO_MAGIC))
268 If there are different magic numbers for the different formats, the verifier
278 if (hdr->magic == cpu_to_be32(XFS_FOO_CRC_MAGIC)) {
285 } else if (hdr->magic != cpu_to_be32(XFS_FOO_MAGIC))
334 there are magic numbers in all the expected spots. All further CRC and