diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/include/obd_lov.h')
-rw-r--r-- | drivers/staging/lustre/lustre/include/obd_lov.h | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/drivers/staging/lustre/lustre/include/obd_lov.h b/drivers/staging/lustre/lustre/include/obd_lov.h deleted file mode 100644 index 235718b366dc..000000000000 --- a/drivers/staging/lustre/lustre/include/obd_lov.h +++ /dev/null @@ -1,116 +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, see - * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf - * - * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, - * CA 95054 USA or visit www.sun.com if you need additional information or - * have any questions. - * - * GPL HEADER END - */ -/* - * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2011, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - */ - -#ifndef _OBD_LOV_H__ -#define _OBD_LOV_H__ - -#define LOV_DEFAULT_STRIPE_SIZE (1 << LNET_MTU_BITS) - -static inline int lov_stripe_md_size(__u16 stripes) -{ - return sizeof(struct lov_stripe_md) + stripes*sizeof(struct lov_oinfo*); -} - -struct lov_version_size { - __u32 lvs_magic; - size_t lvs_lmm_size; - size_t lvs_lod_size; -}; - -static inline __u32 lov_mds_md_stripecnt(int ea_size, __u32 lmm_magic) -{ - static const struct lov_version_size lmm_ver_size[] = { - { .lvs_magic = LOV_MAGIC_V3, - .lvs_lmm_size = sizeof(struct lov_mds_md_v3), - .lvs_lod_size = sizeof(struct lov_ost_data_v1) }, - { .lvs_magic = LOV_MAGIC_V1, - .lvs_lmm_size = sizeof(struct lov_mds_md_v1), - .lvs_lod_size = sizeof(struct lov_ost_data_v1)} }; - int i; - - for (i = 0; i < ARRAY_SIZE(lmm_ver_size); i++) { - if (lmm_magic == lmm_ver_size[i].lvs_magic) { - if (ea_size <= lmm_ver_size[i].lvs_lmm_size) - return 0; - return (ea_size - lmm_ver_size[i].lvs_lmm_size) / - lmm_ver_size[i].lvs_lod_size; - } - } - - /* Invalid LOV magic, so no stripes could fit */ - return 0; -} - -/* lov_do_div64(a, b) returns a % b, and a = a / b. - * The 32-bit code is LOV-specific due to knowing about stripe limits in - * order to reduce the divisor to a 32-bit number. If the divisor is - * already a 32-bit value the compiler handles this directly. */ -#if BITS_PER_LONG > 32 -# define lov_do_div64(n,base) ({ \ - uint64_t __base = (base); \ - uint64_t __rem; \ - __rem = ((uint64_t)(n)) % __base; \ - (n) = ((uint64_t)(n)) / __base; \ - __rem; \ - }) -#else -# define lov_do_div64(n,base) ({ \ - uint64_t __rem; \ - if ((sizeof(base) > 4) && (((base) & 0xffffffff00000000ULL) != 0)) { \ - int __remainder; \ - LASSERTF(!((base) & (LOV_MIN_STRIPE_SIZE - 1)), "64 bit lov " \ - "division %llu / %llu\n", (n), (uint64_t)(base)); \ - __remainder = (n) & (LOV_MIN_STRIPE_SIZE - 1); \ - (n) >>= LOV_MIN_STRIPE_BITS; \ - __rem = do_div(n, (base) >> LOV_MIN_STRIPE_BITS); \ - __rem <<= LOV_MIN_STRIPE_BITS; \ - __rem += __remainder; \ - } else { \ - __rem = do_div(n, base); \ - } \ - __rem; \ - }) -#endif - -#define IOC_LOV_TYPE 'g' -#define IOC_LOV_MIN_NR 50 -#define IOC_LOV_SET_OSC_ACTIVE _IOWR('g', 50, long) -#define IOC_LOV_MAX_NR 50 - -#define QOS_DEFAULT_THRESHOLD 10 /* MB */ -#define QOS_DEFAULT_MAXAGE 5 /* Seconds */ - -#endif |