Lines Matching full:magic
44 magic number in the metadata block, we have no other way of identifying what it
70 Luckily, almost all XFS metadata has magic numbers embedded already - only the
72 magic numbers. Hence we can change the on-disk format of all these objects to
73 add more identifying information and detect this simply by changing the magic
74 numbers in the metadata objects. That is, if it has the current magic number,
75 the metadata isn't self identifying. If it contains a new magic number, it is
175 The first step in read verification is checking the magic number and determining
195 __be32 magic; /* magic number */
216 - directory/attribute node blocks have a 16 bit magic number, and the
217 header that contains the magic number has other information in it as
245 whether the magic number can be used to determine the format of the block. In
255 if (hdr->magic != cpu_to_be32(XFS_FOO_MAGIC))
272 If there are different magic numbers for the different formats, the verifier
282 if (hdr->magic == cpu_to_be32(XFS_FOO_CRC_MAGIC)) {
289 } else if (hdr->magic != cpu_to_be32(XFS_FOO_MAGIC))
338 there are magic numbers in all the expected spots. All further CRC and