+++ /dev/null
-/*
- * 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) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2014, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#ifndef _LINUX_COMPAT25_H
-#define _LINUX_COMPAT25_H
-
-#include <linux/fs_struct.h>
-#include <linux/namei.h>
-
-#include <linux/lustre_patchless_compat.h>
-
-#ifdef HAVE_FS_STRUCT_RWLOCK
-# define LOCK_FS_STRUCT(fs) write_lock(&(fs)->lock)
-# define UNLOCK_FS_STRUCT(fs) write_unlock(&(fs)->lock)
-#else
-# define LOCK_FS_STRUCT(fs) spin_lock(&(fs)->lock)
-# define UNLOCK_FS_STRUCT(fs) spin_unlock(&(fs)->lock)
-#endif
-
-static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
- struct dentry *dentry)
-{
- struct path path;
- struct path old_pwd;
-
- path.mnt = mnt;
- path.dentry = dentry;
- LOCK_FS_STRUCT(fs);
- old_pwd = fs->pwd;
- path_get(&path);
- fs->pwd = path;
- UNLOCK_FS_STRUCT(fs);
-
- if (old_pwd.dentry)
- path_put(&old_pwd);
-}
-
-/*
- * set ATTR_BLOCKS to a high value to avoid any risk of collision with other
- * ATTR_* attributes (see bug 13828)
- */
-#define ATTR_BLOCKS (1 << 27)
-
-#define current_ngroups current_cred()->group_info->ngroups
-#define current_groups current_cred()->group_info->small_block
-
-/*
- * OBD need working random driver, thus all our
- * initialization routines must be called after device
- * driver initialization
- */
-#ifndef MODULE
-#undef module_init
-#define module_init(a) late_initcall(a)
-#endif
-
-#ifndef MODULE_ALIAS_FS
-#define MODULE_ALIAS_FS(name)
-#endif
-
-#define LTIME_S(time) (time.tv_sec)
-
-#ifdef HAVE_GENERIC_PERMISSION_2ARGS
-# define ll_generic_permission(inode, mask, flags, check_acl) \
- generic_permission(inode, mask)
-#elif defined HAVE_GENERIC_PERMISSION_4ARGS
-# define ll_generic_permission(inode, mask, flags, check_acl) \
- generic_permission(inode, mask, flags, check_acl)
-#else
-# define ll_generic_permission(inode, mask, flags, check_acl) \
- generic_permission(inode, mask, check_acl)
-#endif
-
-#ifdef HAVE_4ARGS_VFS_SYMLINK
-#define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
- vfs_symlink(dir, dentry, path, mode)
-#else
-#define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
- vfs_symlink(dir, dentry, path)
-#endif
-
-#if !defined(HAVE_FILE_LLSEEK_SIZE) || defined(HAVE_FILE_LLSEEK_SIZE_5ARGS)
-#define ll_generic_file_llseek_size(file, offset, origin, maxbytes, eof) \
- generic_file_llseek_size(file, offset, origin, maxbytes, eof);
-#else
-#define ll_generic_file_llseek_size(file, offset, origin, maxbytes, eof) \
- generic_file_llseek_size(file, offset, origin, maxbytes);
-#endif
-
-#ifdef HAVE_INODE_DIO_WAIT
-/* inode_dio_wait(i) use as-is for write lock */
-# define inode_dio_write_done(i) do {} while (0) /* for write unlock */
-# define inode_dio_read(i) atomic_inc(&(i)->i_dio_count)
-/* inode_dio_done(i) use as-is for read unlock */
-#else
-# define inode_dio_wait(i) down_write(&(i)->i_alloc_sem)
-# define inode_dio_write_done(i) up_write(&(i)->i_alloc_sem)
-# define inode_dio_read(i) down_read(&(i)->i_alloc_sem)
-# define inode_dio_done(i) up_read(&(i)->i_alloc_sem)
-#endif
-
-#ifndef FS_HAS_FIEMAP
-#define FS_HAS_FIEMAP (0)
-#endif
-
-/* add a lustre compatible layer for crypto API */
-#include <linux/crypto.h>
-static inline int ll_crypto_hmac(struct crypto_hash *tfm,
- u8 *key, unsigned int *keylen,
- struct scatterlist *sg,
- unsigned int size, u8 *result)
-{
- struct hash_desc desc;
- int rv;
- desc.tfm = tfm;
- desc.flags = 0;
- rv = crypto_hash_setkey(desc.tfm, key, *keylen);
- if (rv) {
- CERROR("failed to hash setkey: %d\n", rv);
- return rv;
- }
- return crypto_hash_digest(&desc, sg, size, result);
-}
-
-static inline
-unsigned int ll_crypto_tfm_alg_min_keysize(struct crypto_blkcipher *tfm)
-{
- return crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher.min_keysize;
-}
-
-#ifndef HAVE_SIMPLE_SETATTR
-#define simple_setattr(dentry, ops) inode_setattr((dentry)->d_inode, ops)
-#endif
-
-#ifndef SLAB_DESTROY_BY_RCU
-#define SLAB_DESTROY_BY_RCU 0
-#endif
-
-#ifndef HAVE_DQUOT_SUSPEND
-# define ll_vfs_dq_init vfs_dq_init
-# define ll_vfs_dq_drop vfs_dq_drop
-# define ll_vfs_dq_transfer vfs_dq_transfer
-# define ll_vfs_dq_off(sb, remount) vfs_dq_off(sb, remount)
-#else
-# define ll_vfs_dq_init dquot_initialize
-# define ll_vfs_dq_drop dquot_drop
-# define ll_vfs_dq_transfer dquot_transfer
-# define ll_vfs_dq_off(sb, remount) dquot_suspend(sb, -1)
-#endif
-
-#ifndef HAVE_BLKDEV_GET_BY_DEV
-# define blkdev_get_by_dev(dev, mode, holder) open_by_devnum(dev, mode)
-#endif
-
-#ifdef HAVE_BVEC_ITER
-#define bio_idx(bio) (bio->bi_iter.bi_idx)
-#define bio_set_sector(bio, sector) (bio->bi_iter.bi_sector = sector)
-#else
-#define bio_idx(bio) (bio->bi_idx)
-#define bio_set_sector(bio, sector) (bio->bi_sector = sector)
-#define bio_sectors(bio) ((bio)->bi_size >> 9)
-#ifndef HAVE_BIO_END_SECTOR
-#define bio_end_sector(bio) (bio->bi_sector + bio_sectors(bio))
-#endif
-#define bvec_iter_page(bvec, iter) (*bvec->bv_page)
-#endif
-
-#ifndef HAVE_BLK_QUEUE_MAX_SEGMENTS
-#define blk_queue_max_segments(rq, seg) \
- do { blk_queue_max_phys_segments(rq, seg); \
- blk_queue_max_hw_segments(rq, seg); } while (0)
-#else
-#define queue_max_phys_segments(rq) queue_max_segments(rq)
-#define queue_max_hw_segments(rq) queue_max_segments(rq)
-#endif
-
-#ifdef HAVE_KMAP_ATOMIC_HAS_1ARG
-#define ll_kmap_atomic(a, b) kmap_atomic(a)
-#define ll_kunmap_atomic(a, b) kunmap_atomic(a)
-#else
-#define ll_kmap_atomic(a, b) kmap_atomic(a, b)
-#define ll_kunmap_atomic(a, b) kunmap_atomic(a, b)
-#endif
-
-#ifndef HAVE_CLEAR_INODE
-#define clear_inode(i) end_writeback(i)
-#endif
-
-#ifdef HAVE_DENTRY_D_ALIAS_HLIST
-#define ll_d_hlist_node hlist_node
-#define ll_d_hlist_empty(list) hlist_empty(list)
-#define ll_d_hlist_entry(ptr, type, name) hlist_entry(ptr.first, type, name)
-#define ll_d_hlist_for_each(tmp, i_dentry) hlist_for_each(tmp, i_dentry)
-#ifdef HAVE_HLIST_FOR_EACH_3ARG
-#define ll_d_hlist_for_each_entry(dentry, p, i_dentry, alias) \
- p = NULL; hlist_for_each_entry(dentry, i_dentry, alias)
-#else
-#define ll_d_hlist_for_each_entry(dentry, p, i_dentry, alias) \
- hlist_for_each_entry(dentry, p, i_dentry, alias)
-#endif
-#define DECLARE_LL_D_HLIST_NODE_PTR(name) struct ll_d_hlist_node *name
-#else
-#define ll_d_hlist_node list_head
-#define ll_d_hlist_empty(list) list_empty(list)
-#define ll_d_hlist_entry(ptr, type, name) list_entry(ptr.next, type, name)
-#define ll_d_hlist_for_each(tmp, i_dentry) list_for_each(tmp, i_dentry)
-#define ll_d_hlist_for_each_entry(dentry, p, i_dentry, alias) \
- list_for_each_entry(dentry, i_dentry, alias)
-#define DECLARE_LL_D_HLIST_NODE_PTR(name) /* nothing */
-#endif
-
-#ifndef QUOTA_OK
-# define QUOTA_OK 0
-#endif
-#ifndef NO_QUOTA
-# define NO_QUOTA (-EDQUOT)
-#endif
-
-#ifndef SEEK_DATA
-#define SEEK_DATA 3 /* seek to the next data */
-#endif
-#ifndef SEEK_HOLE
-#define SEEK_HOLE 4 /* seek to the next hole */
-#endif
-
-#ifndef FMODE_UNSIGNED_OFFSET
-#define FMODE_UNSIGNED_OFFSET ((__force fmode_t)0x2000)
-#endif
-
-#if !defined(_ASM_GENERIC_BITOPS_EXT2_NON_ATOMIC_H_) && !defined(ext2_set_bit)
-# define ext2_set_bit __test_and_set_bit_le
-# define ext2_clear_bit __test_and_clear_bit_le
-# define ext2_test_bit test_bit_le
-# define ext2_find_first_zero_bit find_first_zero_bit_le
-# define ext2_find_next_zero_bit find_next_zero_bit_le
-#endif
-
-#ifdef ATTR_TIMES_SET
-# define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)
-#else
-# define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET)
-#endif
-
-#ifndef HAVE_LM_XXX_LOCK_MANAGER_OPS
-# define lm_compare_owner fl_compare_owner
-#endif
-
-/*
- * After 3.1, kernel's nameidata.intent.open.flags is different
- * with lustre's lookup_intent.it_flags, as lustre's it_flags'
- * lower bits equal to FMODE_xxx while kernel doesn't transliterate
- * lower bits of nameidata.intent.open.flags to FMODE_xxx.
- * */
-#include <linux/version.h>
-static inline int ll_namei_to_lookup_intent_flag(int flag)
-{
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 1, 0)
- flag = (flag & ~O_ACCMODE) | OPEN_FMODE(flag);
-#endif
- return flag;
-}
-
-#ifdef HAVE_VOID_MAKE_REQUEST_FN
-# define ll_mrf_ret void
-# define LL_MRF_RETURN(rc)
-#else
-# define ll_mrf_ret int
-# define LL_MRF_RETURN(rc) RETURN(rc)
-#endif
-
-#include <linux/fs.h>
-#ifndef HAVE_PROTECT_I_NLINK
-static inline void set_nlink(struct inode *inode, unsigned int nlink)
-{
- inode->i_nlink = nlink;
-}
-#endif
-
-#ifdef HAVE_INODEOPS_USE_UMODE_T
-# define ll_umode_t umode_t
-#else
-# define ll_umode_t int
-#endif
-
-#include <linux/dcache.h>
-#ifndef HAVE_D_MAKE_ROOT
-static inline struct dentry *d_make_root(struct inode *root)
-{
- struct dentry *res = d_alloc_root(root);
-
- if (res == NULL && root)
- iput(root);
-
- return res;
-}
-#endif
-
-#ifdef HAVE_DIRTY_INODE_HAS_FLAG
-# define ll_dirty_inode(inode, flag) (inode)->i_sb->s_op->dirty_inode((inode), flag)
-#else
-# define ll_dirty_inode(inode, flag) (inode)->i_sb->s_op->dirty_inode((inode))
-#endif
-
-#ifdef HAVE_FILE_F_INODE
-# define set_file_inode(file, inode) (file)->f_inode = inode
-#else
-# define set_file_inode(file, inode)
-#endif
-
-#ifdef HAVE_OLDSIZE_TRUNCATE_PAGECACHE
-#define ll_truncate_pagecache(inode, size) truncate_pagecache(inode, 0, size)
-#else
-#define ll_truncate_pagecache(inode, size) truncate_pagecache(inode, size)
-#endif
-
-#ifdef HAVE_VFS_RENAME_5ARGS
-#define ll_vfs_rename(a, b, c, d) vfs_rename(a, b, c, d, NULL)
-#elif defined HAVE_VFS_RENAME_6ARGS
-#define ll_vfs_rename(a, b, c, d) vfs_rename(a, b, c, d, NULL, 0)
-#else
-#define ll_vfs_rename(a, b, c, d) vfs_rename(a, b, c, d)
-#endif
-
-#ifdef HAVE_VFS_UNLINK_3ARGS
-#define ll_vfs_unlink(a, b) vfs_unlink(a, b, NULL)
-#else
-#define ll_vfs_unlink(a, b) vfs_unlink(a, b)
-#endif
-
-#ifndef HAVE_RADIX_EXCEPTION_ENTRY
-static inline int radix_tree_exceptional_entry(void *arg)
-{
- return 0;
-}
-#endif
-
-#ifndef HAVE_TRUNCATE_INODE_PAGES_FINAL
-static inline void truncate_inode_pages_final(struct address_space *map)
-{
- truncate_inode_pages(map, 0);
- /* Workaround for LU-118 */
- if (map->nrpages) {
- spin_lock_irq(&map->tree_lock);
- spin_unlock_irq(&map->tree_lock);
- } /* Workaround end */
-}
-#endif
-
-#ifndef SIZE_MAX
-#define SIZE_MAX (~(size_t)0)
-#endif
-
-#endif /* _COMPAT25_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff