diff options
Diffstat (limited to 'drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h')
-rw-r--r-- | drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h deleted file mode 100644 index d4c5965c43b1..000000000000 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h +++ /dev/null @@ -1,82 +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) 2008, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * libcfs/include/libcfs/libcfs_prim.h - * - * General primitives. - * - */ - -#ifndef __LIBCFS_PRIM_H__ -#define __LIBCFS_PRIM_H__ - -/* - * Memory - */ -#if BITS_PER_LONG == 32 -/* limit to lowmem on 32-bit systems */ -#define NUM_CACHEPAGES \ - min(totalram_pages, 1UL << (30 - PAGE_SHIFT) * 3 / 4) -#else -#define NUM_CACHEPAGES totalram_pages -#endif - -static inline unsigned int memory_pressure_get(void) -{ - return current->flags & PF_MEMALLOC; -} - -static inline void memory_pressure_set(void) -{ - current->flags |= PF_MEMALLOC; -} - -static inline void memory_pressure_clr(void) -{ - current->flags &= ~PF_MEMALLOC; -} - -static inline int cfs_memory_pressure_get_and_set(void) -{ - int old = memory_pressure_get(); - - if (!old) - memory_pressure_set(); - return old; -} - -static inline void cfs_memory_pressure_restore(int old) -{ - if (old) - memory_pressure_set(); - else - memory_pressure_clr(); -} -#endif |