diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/include/seq_range.h')
| -rw-r--r-- | drivers/staging/lustre/lustre/include/seq_range.h | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/drivers/staging/lustre/lustre/include/seq_range.h b/drivers/staging/lustre/lustre/include/seq_range.h deleted file mode 100644 index 9450da728160..000000000000 --- a/drivers/staging/lustre/lustre/include/seq_range.h +++ /dev/null @@ -1,200 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * 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.gnu.org/licenses/gpl-2.0.html - * - * GPL HEADER END - */ -/* - * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2011, 2014, Intel Corporation. - * - * Copyright 2015 Cray Inc, all rights reserved. - * Author: Ben Evans. - * - * Define lu_seq_range associated functions - */ - -#ifndef _SEQ_RANGE_H_ -#define _SEQ_RANGE_H_ - -#include <uapi/linux/lustre/lustre_idl.h> - -/** - * computes the sequence range type \a range - */ - -static inline unsigned int fld_range_type(const struct lu_seq_range *range) -{ - return range->lsr_flags & LU_SEQ_RANGE_MASK; -} - -/** - * Is this sequence range an OST? \a range - */ - -static inline bool fld_range_is_ost(const struct lu_seq_range *range) -{ - return fld_range_type(range) == LU_SEQ_RANGE_OST; -} - -/** - * Is this sequence range an MDT? \a range - */ - -static inline bool fld_range_is_mdt(const struct lu_seq_range *range) -{ - return fld_range_type(range) == LU_SEQ_RANGE_MDT; -} - -/** - * ANY range is only used when the fld client sends a fld query request, - * but it does not know whether the seq is an MDT or OST, so it will send the - * request with ANY type, which means any seq type from the lookup can be - * expected. /a range - */ -static inline unsigned int fld_range_is_any(const struct lu_seq_range *range) -{ - return fld_range_type(range) == LU_SEQ_RANGE_ANY; -} - -/** - * Apply flags to range \a range \a flags - */ - -static inline void fld_range_set_type(struct lu_seq_range *range, - unsigned int flags) -{ - range->lsr_flags |= flags; -} - -/** - * Add MDT to range type \a range - */ - -static inline void fld_range_set_mdt(struct lu_seq_range *range) -{ - fld_range_set_type(range, LU_SEQ_RANGE_MDT); -} - -/** - * Add OST to range type \a range - */ - -static inline void fld_range_set_ost(struct lu_seq_range *range) -{ - fld_range_set_type(range, LU_SEQ_RANGE_OST); -} - -/** - * Add ANY to range type \a range - */ - -static inline void fld_range_set_any(struct lu_seq_range *range) -{ - fld_range_set_type(range, LU_SEQ_RANGE_ANY); -} - -/** - * computes width of given sequence range \a range - */ - -static inline u64 lu_seq_range_space(const struct lu_seq_range *range) -{ - return range->lsr_end - range->lsr_start; -} - -/** - * initialize range to zero \a range - */ - -static inline void lu_seq_range_init(struct lu_seq_range *range) -{ - memset(range, 0, sizeof(*range)); -} - -/** - * check if given seq id \a s is within given range \a range - */ - -static inline bool lu_seq_range_within(const struct lu_seq_range *range, - u64 seq) -{ - return seq >= range->lsr_start && seq < range->lsr_end; -} - -/** - * Is the range sane? Is the end after the beginning? \a range - */ - -static inline bool lu_seq_range_is_sane(const struct lu_seq_range *range) -{ - return range->lsr_end >= range->lsr_start; -} - -/** - * Is the range 0? \a range - */ - -static inline bool lu_seq_range_is_zero(const struct lu_seq_range *range) -{ - return range->lsr_start == 0 && range->lsr_end == 0; -} - -/** - * Is the range out of space? \a range - */ - -static inline bool lu_seq_range_is_exhausted(const struct lu_seq_range *range) -{ - return lu_seq_range_space(range) == 0; -} - -/** - * return 0 if two ranges have the same location, nonzero if they are - * different \a r1 \a r2 - */ - -static inline int lu_seq_range_compare_loc(const struct lu_seq_range *r1, - const struct lu_seq_range *r2) -{ - return r1->lsr_index != r2->lsr_index || - r1->lsr_flags != r2->lsr_flags; -} - -#if !defined(__REQ_LAYOUT_USER__) -/** - * byte swap range structure \a range - */ - -void lustre_swab_lu_seq_range(struct lu_seq_range *range); -#endif -/** - * printf string and argument list for sequence range - */ -#define DRANGE "[%#16.16llx-%#16.16llx]:%x:%s" - -#define PRANGE(range) \ - (range)->lsr_start, \ - (range)->lsr_end, \ - (range)->lsr_index, \ - fld_range_is_mdt(range) ? "mdt" : "ost" - -#endif |