diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/obdclass/md_attrs.c')
| -rw-r--r-- | drivers/staging/lustre/lustre/obdclass/md_attrs.c | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/drivers/staging/lustre/lustre/obdclass/md_attrs.c b/drivers/staging/lustre/lustre/obdclass/md_attrs.c deleted file mode 100644 index d9e6348de4fa..000000000000 --- a/drivers/staging/lustre/lustre/obdclass/md_attrs.c +++ /dev/null @@ -1,199 +0,0 @@ -/* - * GPL HEADER START - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 only, - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details (a copy is included - * in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 021110-1307, USA - * - * GPL HEADER END - */ -/* - * Copyright (c) 2012, Intel Corporation. - * Use is subject to license terms. - * - * Author: Johann Lombardi <johann.lombardi@intel.com> - */ - -#include "../include/lustre/lustre_idl.h" -#include "../include/obd.h" -#include "../include/md_object.h" - -/** - * Initialize new \a lma. Only fid is stored. - * - * \param lma - is the new LMA structure to be initialized - * \param fid - is the FID of the object this LMA belongs to - * \param incompat - features that MDS must understand to access object - */ -void lustre_lma_init(struct lustre_mdt_attrs *lma, const struct lu_fid *fid, - __u32 incompat) -{ - lma->lma_compat = 0; - lma->lma_incompat = incompat; - lma->lma_self_fid = *fid; - - /* If a field is added in struct lustre_mdt_attrs, zero it explicitly - * and change the test below. */ - LASSERT(sizeof(*lma) == - (offsetof(struct lustre_mdt_attrs, lma_self_fid) + - sizeof(lma->lma_self_fid))); -}; -EXPORT_SYMBOL(lustre_lma_init); - -/** - * Swab, if needed, LMA structure which is stored on-disk in little-endian order. - * - * \param lma - is a pointer to the LMA structure to be swabbed. - */ -void lustre_lma_swab(struct lustre_mdt_attrs *lma) -{ - /* Use LUSTRE_MSG_MAGIC to detect local endianness. */ - if (LUSTRE_MSG_MAGIC != cpu_to_le32(LUSTRE_MSG_MAGIC)) { - __swab32s(&lma->lma_compat); - __swab32s(&lma->lma_incompat); - lustre_swab_lu_fid(&lma->lma_self_fid); - } -}; -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 endianness. */ - 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; - - 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. - * - * \param attrs - is a pointer to the HSM structure to be swabbed. - */ -void lustre_hsm_swab(struct hsm_attrs *attrs) -{ - /* Use LUSTRE_MSG_MAGIC to detect local endianness. */ - if (LUSTRE_MSG_MAGIC != cpu_to_le32(LUSTRE_MSG_MAGIC)) { - __swab32s(&attrs->hsm_compat); - __swab32s(&attrs->hsm_flags); - __swab64s(&attrs->hsm_arch_id); - __swab64s(&attrs->hsm_arch_ver); - } -}; -EXPORT_SYMBOL(lustre_hsm_swab); - -/* - * Swab and extract HSM attributes from on-disk xattr. - * - * \param buf - is a buffer containing the on-disk HSM extended attribute. - * \param rc - is the HSM xattr stored in \a buf - * \param mh - is the md_hsm structure where to extract HSM attributes. - */ -int lustre_buf2hsm(void *buf, int rc, struct md_hsm *mh) -{ - struct hsm_attrs *attrs = (struct hsm_attrs *)buf; - - if (rc == 0 || rc == -ENODATA) - /* no HSM attributes */ - return -ENODATA; - - if (rc < 0) - /* error hit while fetching xattr */ - return rc; - - /* unpack HSM attributes */ - lustre_hsm_swab(attrs); - - /* fill md_hsm structure */ - mh->mh_compat = attrs->hsm_compat; - mh->mh_flags = attrs->hsm_flags; - mh->mh_arch_id = attrs->hsm_arch_id; - mh->mh_arch_ver = attrs->hsm_arch_ver; - - return 0; -} -EXPORT_SYMBOL(lustre_buf2hsm); - -/* - * Pack HSM attributes. - * - * \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) -{ - struct hsm_attrs *attrs = (struct hsm_attrs *)buf; - - /* copy HSM attributes */ - attrs->hsm_compat = mh->mh_compat; - attrs->hsm_flags = mh->mh_flags; - attrs->hsm_arch_id = mh->mh_arch_id; - attrs->hsm_arch_ver = mh->mh_arch_ver; - - /* pack xattr */ - lustre_hsm_swab(attrs); -} -EXPORT_SYMBOL(lustre_hsm2buf); |