EXPORT_SYMBOL(lustre_lma_swab);
/**
- * Swab, if needed, SOM structure which is stored on-disk in little-endian
- * order.
- *
- * \param attrs - is a pointer to the SOM structure to be swabbed.
- */
-void lustre_som_swab(struct som_attrs *attrs)
-{
- /* Use LUSTRE_MSG_MAGIC to detect local endianess. */
- if (LUSTRE_MSG_MAGIC != cpu_to_le32(LUSTRE_MSG_MAGIC)) {
- __swab32s(&attrs->som_compat);
- __swab32s(&attrs->som_incompat);
- __swab64s(&attrs->som_ioepoch);
- __swab64s(&attrs->som_size);
- __swab64s(&attrs->som_blocks);
- __swab64s(&attrs->som_mountid);
- }
-};
-EXPORT_SYMBOL(lustre_som_swab);
-
-/*
- * Swab and extract SOM attributes from on-disk xattr.
- *
- * \param buf - is a buffer containing the on-disk SOM extended attribute.
- * \param rc - is the SOM xattr stored in \a buf
- * \param msd - is the md_som_data structure where to extract SOM attributes.
- */
-int lustre_buf2som(void *buf, int rc, struct md_som_data *msd)
-{
- struct som_attrs *attrs = (struct som_attrs *)buf;
- ENTRY;
-
- if (rc == 0 || rc == -ENODATA)
- /* no SOM attributes */
- RETURN(-ENODATA);
-
- if (rc < 0)
- /* error hit while fetching xattr */
- RETURN(rc);
-
- /* check SOM compatibility */
- if (attrs->som_incompat & ~cpu_to_le32(SOM_INCOMPAT_SUPP))
- RETURN(-ENODATA);
-
- /* unpack SOM attributes */
- lustre_som_swab(attrs);
-
- /* fill in-memory msd structure */
- msd->msd_compat = attrs->som_compat;
- msd->msd_incompat = attrs->som_incompat;
- msd->msd_ioepoch = attrs->som_ioepoch;
- msd->msd_size = attrs->som_size;
- msd->msd_blocks = attrs->som_blocks;
- msd->msd_mountid = attrs->som_mountid;
-
- RETURN(0);
-}
-EXPORT_SYMBOL(lustre_buf2som);
-
-/**
* Swab, if needed, HSM structure which is stored on-disk in little-endian
* order.
*
__swab64s(&attrs->hsm_arch_ver);
}
};
-EXPORT_SYMBOL(lustre_hsm_swab);
/*
* Swab and extract HSM attributes from on-disk xattr.
* \param buf - is the output buffer where to pack the on-disk HSM xattr.
* \param mh - is the md_hsm structure to pack.
*/
-void lustre_hsm2buf(void *buf, struct md_hsm *mh)
+void lustre_hsm2buf(void *buf, const struct md_hsm *mh)
{
struct hsm_attrs *attrs = (struct hsm_attrs *)buf;
ENTRY;