-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#ifndef _LINUX_COMPAT25_H
#define _LINUX_COMPAT25_H
-#ifdef __KERNEL__
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9)
-#error sorry, lustre requires at least linux kernel 2.6.9 or later
-#endif
-
+#include <linux/fs_struct.h>
+#include <linux/namei.h>
#include <libcfs/linux/portals_compat25.h>
#include <linux/lustre_patchless_compat.h>
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14)
-struct ll_iattr {
- struct iattr iattr;
- unsigned int ia_attr_flags;
-};
+#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 ll_iattr iattr
-#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14) */
+# define LOCK_FS_STRUCT(fs) spin_lock(&(fs)->lock)
+# define UNLOCK_FS_STRUCT(fs) spin_unlock(&(fs)->lock)
+#endif
-#ifdef HAVE_FS_STRUCT_USE_PATH
static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
struct dentry *dentry)
{
path.mnt = mnt;
path.dentry = dentry;
- write_lock(&fs->lock);
+ LOCK_FS_STRUCT(fs);
old_pwd = fs->pwd;
path_get(&path);
fs->pwd = path;
- write_unlock(&fs->lock);
+ UNLOCK_FS_STRUCT(fs);
if (old_pwd.dentry)
path_put(&old_pwd);
}
-#else
-
-static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
- struct dentry *dentry)
-{
- struct dentry *old_pwd;
- struct vfsmount *old_pwdmnt;
-
- write_lock(&fs->lock);
- old_pwd = fs->pwd;
- old_pwdmnt = fs->pwdmnt;
- fs->pwdmnt = mntget(mnt);
- fs->pwd = dget(dentry);
- write_unlock(&fs->lock);
-
- if (old_pwd) {
- dput(old_pwd);
- mntput(old_pwdmnt);
- }
-}
-#endif
-
/*
* 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)
-#if HAVE_INODE_I_MUTEX
-#define UNLOCK_INODE_MUTEX(inode) do {mutex_unlock(&(inode)->i_mutex); } while(0)
-#define LOCK_INODE_MUTEX(inode) do {mutex_lock(&(inode)->i_mutex); } while(0)
-#define LOCK_INODE_MUTEX_PARENT(inode) \
-do {mutex_lock_nested(&(inode)->i_mutex, I_MUTEX_PARENT); } while(0)
-#define TRYLOCK_INODE_MUTEX(inode) mutex_trylock(&(inode)->i_mutex)
-#else
-#define UNLOCK_INODE_MUTEX(inode) do {up(&(inode)->i_sem); } while(0)
-#define LOCK_INODE_MUTEX(inode) do {down(&(inode)->i_sem); } while(0)
-#define TRYLOCK_INODE_MUTEX(inode) (!down_trylock(&(inode)->i_sem))
-#define LOCK_INODE_MUTEX_PARENT(inode) LOCK_INODE_MUTEX(inode)
-#endif /* HAVE_INODE_I_MUTEX */
-
-#ifdef HAVE_SEQ_LOCK
-#define LL_SEQ_LOCK(seq) mutex_lock(&(seq)->lock)
-#define LL_SEQ_UNLOCK(seq) mutex_unlock(&(seq)->lock)
-#else
-#define LL_SEQ_LOCK(seq) down(&(seq)->sem)
-#define LL_SEQ_UNLOCK(seq) up(&(seq)->sem)
-#endif
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15)
-#define d_child d_u.d_child
-#define d_rcu d_u.d_rcu
-#endif
-
-#ifdef HAVE_DQUOTOFF_MUTEX
-#define UNLOCK_DQONOFF_MUTEX(dqopt) do {mutex_unlock(&(dqopt)->dqonoff_mutex); } while(0)
-#define LOCK_DQONOFF_MUTEX(dqopt) do {mutex_lock(&(dqopt)->dqonoff_mutex); } while(0)
-#else
-#define UNLOCK_DQONOFF_MUTEX(dqopt) do {up(&(dqopt)->dqonoff_sem); } while(0)
-#define LOCK_DQONOFF_MUTEX(dqopt) do {down(&(dqopt)->dqonoff_sem); } while(0)
-#endif /* HAVE_DQUOTOFF_MUTEX */
-
-#define current_ngroups current->group_info->ngroups
-#define current_groups current->group_info->small_block
-
-#ifndef page_private
-#define page_private(page) ((page)->private)
-#define set_page_private(page, v) ((page)->private = (v))
-#endif
-
-#ifndef HAVE_GFP_T
-#define gfp_t int
-#endif
-
-#define lock_dentry(___dentry) spin_lock(&(___dentry)->d_lock)
-#define unlock_dentry(___dentry) spin_unlock(&(___dentry)->d_lock)
-
-#define ll_kernel_locked() kernel_locked()
+#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
#define module_init(a) late_initcall(a)
#endif
-/* XXX our code should be using the 2.6 calls, not the other way around */
-#ifdef HAVE_TRYLOCK_PAGE
-#define TestSetPageLocked(page) (!trylock_page(page))
-#endif
-
-#define Page_Uptodate(page) PageUptodate(page)
-#define ll_redirty_page(page) set_page_dirty(page)
-
-#define KDEVT_INIT(val) (val)
-
#define LTIME_S(time) (time.tv_sec)
-#define ll_path_lookup path_lookup
-#define ll_permission(inode,mask,nd) permission(inode,mask,nd)
-
-#define ll_pgcache_lock(mapping) spin_lock(&mapping->page_lock)
-#define ll_pgcache_unlock(mapping) spin_unlock(&mapping->page_lock)
-#define ll_call_writepage(inode, page) \
- (inode)->i_mapping->a_ops->writepage(page, NULL)
-#define ll_invalidate_inode_pages(inode) \
- invalidate_inode_pages((inode)->i_mapping)
-#define ll_truncate_complete_page(page) \
- truncate_complete_page(page->mapping, page)
-
-#define ll_vfs_create(a,b,c,d) vfs_create(a,b,c,d)
-#define ll_dev_t dev_t
-#define kdev_t dev_t
-#define to_kdev_t(dev) (dev)
-#define kdev_t_to_nr(dev) (dev)
-#define val_to_kdev(dev) (dev)
-#define ILOOKUP(sb, ino, test, data) ilookup5(sb, ino, test, (void *)(data));
-
-#include <linux/writeback.h>
-
-static inline int cleanup_group_info(void)
-{
- struct group_info *ginfo;
-
- ginfo = groups_alloc(0);
- if (!ginfo)
- return -ENOMEM;
- set_current_groups(ginfo);
- put_group_info(ginfo);
-
- return 0;
-}
-
-#define __set_page_ll_data(page, llap) \
- do { \
- page_cache_get(page); \
- SetPagePrivate(page); \
- set_page_private(page, (unsigned long)llap); \
- } while (0)
-#define __clear_page_ll_data(page) \
- do { \
- ClearPagePrivate(page); \
- set_page_private(page, 0); \
- page_cache_release(page); \
- } while(0)
-
-#define kiobuf bio
-
-#include <linux/proc_fs.h>
-
-#if !defined(HAVE_D_REHASH_COND) && defined(HAVE___D_REHASH)
-#define d_rehash_cond(dentry, lock) __d_rehash(dentry, lock)
-extern void __d_rehash(struct dentry *dentry, int lock);
-#endif
-
-#if !defined(HAVE_D_MOVE_LOCKED) && defined(HAVE___D_MOVE)
-#define d_move_locked(dentry, target) __d_move(dentry, target)
-extern void __d_move(struct dentry *dentry, struct dentry *target);
-#endif
-
-#ifdef HAVE_CAN_SLEEP_ARG
-#define ll_flock_lock_file_wait(file, lock, can_sleep) \
- flock_lock_file_wait(file, lock, can_sleep)
+#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_flock_lock_file_wait(file, lock, can_sleep) \
- flock_lock_file_wait(file, lock)
+# define ll_generic_permission(inode, mask, flags, check_acl) \
+ generic_permission(inode, mask, check_acl)
#endif
-#define CheckWriteback(page, cmd) \
- ((!PageWriteback(page) && (cmd & OBD_BRW_READ)) || \
- (PageWriteback(page) && (cmd & OBD_BRW_WRITE)))
-
-#ifdef HAVE_PAGE_LIST
-static inline int mapping_has_pages(struct address_space *mapping)
-{
- int rc = 1;
-
- ll_pgcache_lock(mapping);
- if (list_empty(&mapping->dirty_pages) &&
- list_empty(&mapping->clean_pages) &&
- list_empty(&mapping->locked_pages)) {
- rc = 0;
- }
- ll_pgcache_unlock(mapping);
-
- return rc;
-}
+#ifdef HAVE_DENTRY_OPEN_USE_PATH
+#define ll_dentry_open(a,b,c) dentry_open(a,b,c)
#else
-static inline int mapping_has_pages(struct address_space *mapping)
+/*
+ * dentry_open handles its own reference counting since Linux v3.6
+ * (commit 765927b2). Callers should free their own references.
+ *
+ * Prior versions expected the caller to increment the references.
+ * The references are retained on success and freed on error.
+ */
+static inline struct file *ll_dentry_open(struct path *path, int flags,
+ const struct cred *cred)
{
- return mapping->nrpages > 0;
+ mntget(path->mnt);
+ dget(path->dentry);
+ return dentry_open(path->dentry, path->mnt, flags, cred);
}
#endif
-#ifdef HAVE_KIOBUF_KIO_BLOCKS
-#define KIOBUF_GET_BLOCKS(k) ((k)->kio_blocks)
-#else
-#define KIOBUF_GET_BLOCKS(k) ((k)->blocks)
-#endif
-
-#ifdef HAVE_SECURITY_PLUG
-#define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
- vfs_symlink(dir, dentry, mnt, path, mode)
-#else
#ifdef HAVE_4ARGS_VFS_SYMLINK
#define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
vfs_symlink(dir, dentry, path, mode)
#define ll_vfs_symlink(dir, dentry, mnt, path, mode) \
vfs_symlink(dir, dentry, path)
#endif
-#endif
-
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,7))
-#define ll_set_dflags(dentry, flags) do { dentry->d_vfs_flags |= flags; } while(0)
-#else
-#define ll_set_dflags(dentry, flags) do { \
- spin_lock(&dentry->d_lock); \
- dentry->d_flags |= flags; \
- spin_unlock(&dentry->d_lock); \
- } while(0)
-#endif
-
-#ifndef container_of
-#define container_of(ptr, type, member) ({ \
- const typeof( ((type *)0)->member ) *__mptr = (ptr); \
- (type *)( (char *)__mptr - offsetof(type,member) );})
-#endif
-
-#define UP_WRITE_I_ALLOC_SEM(i) up_write(&(i)->i_alloc_sem)
-#define DOWN_WRITE_I_ALLOC_SEM(i) down_write(&(i)->i_alloc_sem)
-#define LASSERT_I_ALLOC_SEM_WRITE_LOCKED(i) LASSERT(down_read_trylock(&(i)->i_alloc_sem) == 0)
-
-#define UP_READ_I_ALLOC_SEM(i) up_read(&(i)->i_alloc_sem)
-#define DOWN_READ_I_ALLOC_SEM(i) down_read(&(i)->i_alloc_sem)
-#define LASSERT_I_ALLOC_SEM_READ_LOCKED(i) LASSERT(down_write_trylock(&(i)->i_alloc_sem) == 0)
-
-#ifndef HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP
-#define grab_cache_page_nowait_gfp(x, y, z) grab_cache_page_nowait((x), (y))
-#endif
-
-#include <linux/mpage.h> /* for generic_writepages */
-#ifndef HAVE_FILEMAP_FDATAWRITE_RANGE
-#include <linux/backing-dev.h> /* for mapping->backing_dev_info */
-static inline int filemap_fdatawrite_range(struct address_space *mapping,
- loff_t start, loff_t end)
-{
- int rc;
- struct writeback_control wbc = {
- .sync_mode = WB_SYNC_ALL,
- .nr_to_write = (end - start + PAGE_SIZE - 1) >> PAGE_SHIFT,
- };
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
- wbc.range_start = start;
- wbc.range_end = end;
-#else
- wbc.start = start;
- wbc.end = end;
-#endif
-
-#ifdef HAVE_MAPPING_CAP_WRITEBACK_DIRTY
- if (!mapping_cap_writeback_dirty(mapping))
- rc = 0;
-#else
- if (mapping->backing_dev_info->memory_backed)
- rc = 0;
-#endif
- /* do_writepages() */
- else if (mapping->a_ops->writepages)
- rc = mapping->a_ops->writepages(mapping, &wbc);
- else
- rc = generic_writepages(mapping, &wbc);
- return rc;
-}
-#else
-int filemap_fdatawrite_range(struct address_space *mapping,
- loff_t start, loff_t end);
-#endif /* HAVE_FILEMAP_FDATAWRITE_RANGE */
-
-#ifdef HAVE_VFS_KERN_MOUNT
-static inline struct vfsmount *
-ll_kern_mount(const char *fstype, int flags, const char *name, void *data)
-{
- struct file_system_type *type = get_fs_type(fstype);
- struct vfsmount *mnt;
- if (!type)
- return ERR_PTR(-ENODEV);
- mnt = vfs_kern_mount(type, flags, name, data);
- module_put(type->owner);
- return mnt;
-}
-#else
-#define ll_kern_mount(fstype, flags, name, data) do_kern_mount((fstype), (flags), (name), (data))
-#endif
-
-#ifdef HAVE_STATFS_DENTRY_PARAM
-#define ll_do_statfs(sb, sfs) (sb)->s_op->statfs((sb)->s_root, (sfs))
-#else
-#define ll_do_statfs(sb, sfs) (sb)->s_op->statfs((sb), (sfs))
-#endif
-
-#ifndef HAVE_SB_TIME_GRAN
-#ifndef HAVE_S_TIME_GRAN
-#error Need s_time_gran patch!
-#endif
-static inline u32 get_sb_time_gran(struct super_block *sb)
-{
- return sb->s_time_gran;
-}
-#endif
-
-#ifdef HAVE_RW_TREE_LOCK
-#define TREE_READ_LOCK_IRQ(mapping) read_lock_irq(&(mapping)->tree_lock)
-#define TREE_READ_UNLOCK_IRQ(mapping) read_unlock_irq(&(mapping)->tree_lock)
-#else
-#define TREE_READ_LOCK_IRQ(mapping) spin_lock_irq(&(mapping)->tree_lock)
-#define TREE_READ_UNLOCK_IRQ(mapping) spin_unlock_irq(&(mapping)->tree_lock)
-#endif
-
-#ifdef HAVE_UNREGISTER_BLKDEV_RETURN_INT
-#define ll_unregister_blkdev(a,b) unregister_blkdev((a),(b))
-#else
-static inline
-int ll_unregister_blkdev(unsigned int dev, const char *name)
-{
- unregister_blkdev(dev, name);
- return 0;
-}
-#endif
-#ifdef HAVE_INVALIDATE_BDEV_2ARG
-#define ll_invalidate_bdev(a,b) invalidate_bdev((a),(b))
+#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_invalidate_bdev(a,b) invalidate_bdev((a))
+#define ll_generic_file_llseek_size(file, offset, origin, maxbytes, eof) \
+ generic_file_llseek_size(file, offset, origin, maxbytes);
#endif
-#ifdef HAVE_INODE_BLKSIZE
-#define ll_inode_blksize(a) (a)->i_blksize
+#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 ll_inode_blksize(a) (1<<(a)->i_blkbits)
+# 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
-#ifdef HAVE_FS_RENAME_DOES_D_MOVE
-#define LL_RENAME_DOES_D_MOVE FS_RENAME_DOES_D_MOVE
-#else
-#define LL_RENAME_DOES_D_MOVE FS_ODD_RENAME
+#ifndef FS_HAS_FIEMAP
+#define FS_HAS_FIEMAP (0)
#endif
/* add a lustre compatible layer for crypto API */
#include <linux/crypto.h>
-#ifdef HAVE_ASYNC_BLOCK_CIPHER
#define ll_crypto_hash crypto_hash
#define ll_crypto_cipher crypto_blkcipher
#define ll_crypto_alloc_hash(name, type, mask) crypto_alloc_hash(name, type, mask)
#define ll_crypto_hash_init(desc) crypto_hash_init(desc)
#define ll_crypto_hash_update(desc, sl, bytes) crypto_hash_update(desc, sl, bytes)
#define ll_crypto_hash_final(desc, out) crypto_hash_final(desc, out)
-#define ll_crypto_alloc_blkcipher(name, type, mask) \
- crypto_alloc_blkcipher(name ,type, mask)
#define ll_crypto_blkcipher_setkey(tfm, key, keylen) \
crypto_blkcipher_setkey(tfm, key, keylen)
#define ll_crypto_blkcipher_set_iv(tfm, src, len) \
#define ll_crypto_blkcipher_decrypt_iv(desc, dst, src, bytes) \
crypto_blkcipher_decrypt_iv(desc, dst, src, bytes)
+static inline
+struct ll_crypto_cipher *ll_crypto_alloc_blkcipher(const char *name,
+ u32 type, u32 mask)
+{
+ struct ll_crypto_cipher *rtn = crypto_alloc_blkcipher(name, type, mask);
+
+ return (rtn == NULL ? ERR_PTR(-ENOMEM) : rtn);
+}
+
static inline int ll_crypto_hmac(struct ll_crypto_hash *tfm,
u8 *key, unsigned int *keylen,
struct scatterlist *sg,
#define ll_crypto_blkcipher_blocksize(tfm) crypto_blkcipher_blocksize(tfm)
#define ll_crypto_free_hash(tfm) crypto_free_hash(tfm)
#define ll_crypto_free_blkcipher(tfm) crypto_free_blkcipher(tfm)
-#else /* HAVE_ASYNC_BLOCK_CIPHER */
-#include <linux/scatterlist.h>
-#define ll_crypto_hash crypto_tfm
-#define ll_crypto_cipher crypto_tfm
-#ifndef HAVE_STRUCT_HASH_DESC
-struct hash_desc {
- struct ll_crypto_hash *tfm;
- u32 flags;
-};
-#endif
-#ifndef HAVE_STRUCT_BLKCIPHER_DESC
-struct blkcipher_desc {
- struct ll_crypto_cipher *tfm;
- void *info;
- u32 flags;
-};
-#endif
-#define ll_crypto_blkcipher_setkey(tfm, key, keylen) \
- crypto_cipher_setkey(tfm, key, keylen)
-#define ll_crypto_blkcipher_set_iv(tfm, src, len) \
- crypto_cipher_set_iv(tfm, src, len)
-#define ll_crypto_blkcipher_get_iv(tfm, dst, len) \
- crypto_cipher_get_iv(tfm, dst, len)
-#define ll_crypto_blkcipher_encrypt(desc, dst, src, bytes) \
- crypto_cipher_encrypt((desc)->tfm, dst, src, bytes)
-#define ll_crypto_blkcipher_decrypt(desc, dst, src, bytes) \
- crypto_cipher_decrypt((desc)->tfm, dst, src, bytes)
-#define ll_crypto_blkcipher_decrypt_iv(desc, dst, src, bytes) \
- crypto_cipher_decrypt_iv((desc)->tfm, dst, src, bytes, (desc)->info)
-#define ll_crypto_blkcipher_encrypt_iv(desc, dst, src, bytes) \
- crypto_cipher_encrypt_iv((desc)->tfm, dst, src, bytes, (desc)->info)
-
-static inline
-struct ll_crypto_cipher *ll_crypto_alloc_blkcipher(const char * algname,
- u32 type, u32 mask)
-{
- char buf[CRYPTO_MAX_ALG_NAME + 1];
- const char *pan = algname;
- u32 flag = 0;
-
- if (strncmp("cbc(", algname, 4) == 0)
- flag |= CRYPTO_TFM_MODE_CBC;
- else if (strncmp("ecb(", algname, 4) == 0)
- flag |= CRYPTO_TFM_MODE_ECB;
- if (flag) {
- char *vp = strnchr(algname, CRYPTO_MAX_ALG_NAME, ')');
- if (vp) {
- memcpy(buf, algname + 4, vp - algname - 4);
- buf[vp - algname - 4] = '\0';
- pan = buf;
- } else {
- flag = 0;
- }
- }
- return crypto_alloc_tfm(pan, flag);
-}
-static inline
-struct ll_crypto_hash *ll_crypto_alloc_hash(const char *alg, u32 type, u32 mask)
-{
- char buf[CRYPTO_MAX_ALG_NAME + 1];
- const char *pan = alg;
-
- if (strncmp("hmac(", alg, 5) == 0) {
- char *vp = strnchr(alg, CRYPTO_MAX_ALG_NAME, ')');
- if (vp) {
- memcpy(buf, alg+ 5, vp - alg- 5);
- buf[vp - alg - 5] = 0x00;
- pan = buf;
- }
- }
- return crypto_alloc_tfm(pan, 0);
-}
-static inline int ll_crypto_hash_init(struct hash_desc *desc)
-{
- crypto_digest_init(desc->tfm); return 0;
-}
-static inline int ll_crypto_hash_update(struct hash_desc *desc,
- struct scatterlist *sg,
- unsigned int nbytes)
-{
- struct scatterlist *sl = sg;
- unsigned int count;
- /*
- * This way is very weakness. We must ensure that
- * the sum of sg[0..i]->length isn't greater than nbytes.
- * In the upstream kernel the crypto_hash_update() also
- * via the nbytes computed the count of sg[...].
- * The old style is more safely. but it gone.
- */
- for (count = 0; nbytes > 0; count ++, sl ++) {
- nbytes -= sl->length;
- }
- crypto_digest_update(desc->tfm, sg, count); return 0;
-}
-static inline int ll_crypto_hash_final(struct hash_desc *desc, u8 *out)
-{
- crypto_digest_final(desc->tfm, out); return 0;
-}
-static inline int ll_crypto_hmac(struct crypto_tfm *tfm,
- u8 *key, unsigned int *keylen,
- struct scatterlist *sg,
- unsigned int nbytes,
- u8 *out)
-{
- struct scatterlist *sl = sg;
- int count;
- for (count = 0; nbytes > 0; count ++, sl ++) {
- nbytes -= sl->length;
- }
- crypto_hmac(tfm, key, keylen, sg, count, out);
- return 0;
-}
-
-#define ll_crypto_hash_setkey(tfm, key, keylen) crypto_digest_setkey(tfm, key, keylen)
-#define ll_crypto_blkcipher_blocksize(tfm) crypto_tfm_alg_blocksize(tfm)
-#define ll_crypto_blkcipher_ivsize(tfm) crypto_tfm_alg_ivsize(tfm)
-#define ll_crypto_hash_digestsize(tfm) crypto_tfm_alg_digestsize(tfm)
-#define ll_crypto_hash_blocksize(tfm) crypto_tfm_alg_blocksize(tfm)
-#define ll_crypto_free_hash(tfm) crypto_free_tfm(tfm)
-#define ll_crypto_free_blkcipher(tfm) crypto_free_tfm(tfm)
-#define ll_crypto_tfm_alg_min_keysize crypto_tfm_alg_min_keysize
-#define ll_crypto_tfm_alg_max_keysize crypto_tfm_alg_max_keysize
-#endif /* HAVE_ASYNC_BLOCK_CIPHER */
-
-#ifndef HAVE_SYNCHRONIZE_RCU
-#define synchronize_rcu() synchronize_kernel()
+#ifdef for_each_possible_cpu
+#define cfs_for_each_possible_cpu(cpu) for_each_possible_cpu(cpu)
+#elif defined(for_each_cpu)
+#define cfs_for_each_possible_cpu(cpu) for_each_cpu(cpu)
#endif
-#ifdef HAVE_FILE_REMOVE_SUID
-# define ll_remove_suid(file, mnt) file_remove_suid(file)
-#else
-# ifdef HAVE_SECURITY_PLUG
-# define ll_remove_suid(file,mnt) remove_suid(file->f_dentry,mnt)
-# else
-# define ll_remove_suid(file,mnt) remove_suid(file->f_dentry)
-# endif
-#endif
-
-#ifdef HAVE_SECURITY_PLUG
-#define ll_vfs_rmdir(dir,entry,mnt) vfs_rmdir(dir,entry,mnt)
-#define ll_vfs_mkdir(inode,dir,mnt,mode) vfs_mkdir(inode,dir,mnt,mode)
-#define ll_vfs_link(old,mnt,dir,new,mnt1) vfs_link(old,mnt,dir,new,mnt1)
-#define ll_vfs_unlink(inode,entry,mnt) vfs_unlink(inode,entry,mnt)
-#define ll_vfs_mknod(dir,entry,mnt,mode,dev) \
- vfs_mknod(dir,entry,mnt,mode,dev)
-#define ll_security_inode_unlink(dir,entry,mnt) \
- security_inode_unlink(dir,entry,mnt)
-#define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) \
- vfs_rename(old,old_dir,mnt,new,new_dir,mnt1)
+#ifdef HAVE_BIO_ENDIO_2ARG
+#define cfs_bio_io_error(a,b) bio_io_error((a))
+#define cfs_bio_endio(a,b,c) bio_endio((a),(c))
#else
-#define ll_vfs_rmdir(dir,entry,mnt) vfs_rmdir(dir,entry)
-#define ll_vfs_mkdir(inode,dir,mnt,mode) vfs_mkdir(inode,dir,mode)
-#define ll_vfs_link(old,mnt,dir,new,mnt1) vfs_link(old,dir,new)
-#define ll_vfs_unlink(inode,entry,mnt) vfs_unlink(inode,entry)
-#define ll_vfs_mknod(dir,entry,mnt,mode,dev) vfs_mknod(dir,entry,mode,dev)
-#define ll_security_inode_unlink(dir,entry,mnt) security_inode_unlink(dir,entry)
-#define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) \
- vfs_rename(old,old_dir,new,new_dir)
-#endif /* HAVE_SECURITY_PLUG */
-
-#ifndef for_each_possible_cpu
-#define for_each_possible_cpu(i) for_each_cpu(i)
+#define cfs_bio_io_error(a,b) bio_io_error((a),(b))
+#define cfs_bio_endio(a,b,c) bio_endio((a),(b),(c))
#endif
-#ifndef cpu_to_node
-#define cpu_to_node(cpu) 0
+#ifndef HAVE_SIMPLE_SETATTR
+#define simple_setattr(dentry, ops) inode_setattr((dentry)->d_inode, ops)
#endif
-#ifdef HAVE_REGISTER_SHRINKER
-typedef int (*shrinker_t)(int nr_to_scan, gfp_t gfp_mask);
-
-static inline
-struct shrinker *set_shrinker(int seek, shrinker_t func)
-{
- struct shrinker *s;
-
- s = kmalloc(sizeof(*s), GFP_KERNEL);
- if (s == NULL)
- return (NULL);
+#ifndef SLAB_DESTROY_BY_RCU
+#define SLAB_DESTROY_BY_RCU 0
+#endif
- s->shrink = func;
- s->seeks = seek;
+#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
- register_shrinker(s);
+#ifndef HAVE_BLKDEV_GET_BY_DEV
+# define blkdev_get_by_dev(dev, mode, holder) open_by_devnum(dev, mode)
+#endif
- return s;
-}
+#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
-static inline
-void remove_shrinker(struct shrinker *shrinker)
-{
- if (shrinker == NULL)
- return;
+#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
- unregister_shrinker(shrinker);
- kfree(shrinker);
-}
+#ifndef HAVE_CLEAR_INODE
+#define clear_inode(i) end_writeback(i)
#endif
-#ifdef HAVE_BIO_ENDIO_2ARG
-#define cfs_bio_io_error(a,b) bio_io_error((a))
-#define cfs_bio_endio(a,b,c) bio_endio((a),(c))
+#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 cfs_bio_io_error(a,b) bio_io_error((a),(b))
-#define cfs_bio_endio(a,b,c) bio_endio((a),(b),(c))
+#define ll_d_hlist_for_each_entry(dentry, p, i_dentry, alias) \
+ hlist_for_each_entry(dentry, p, i_dentry, alias)
#endif
-
-#ifdef HAVE_FS_STRUCT_USE_PATH
-#define cfs_fs_pwd(fs) ((fs)->pwd.dentry)
-#define cfs_fs_mnt(fs) ((fs)->pwd.mnt)
-#define cfs_path_put(nd) path_put(&(nd)->path)
+#define DECLARE_LL_D_HLIST_NODE_PTR(name) struct ll_d_hlist_node *name
#else
-#define cfs_fs_pwd(fs) ((fs)->pwd)
-#define cfs_fs_mnt(fs) ((fs)->pwdmnt)
-#define cfs_path_put(nd) path_release(nd)
+#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 abs
-static inline int abs(int x)
-{
- return (x < 0) ? -x : x;
-}
+#ifndef QUOTA_OK
+# define QUOTA_OK 0
+#endif
+#ifndef NO_QUOTA
+# define NO_QUOTA (-EDQUOT)
#endif
-#ifndef labs
-static inline long labs(long x)
-{
- return (x < 0) ? -x : x;
-}
-#endif /* HAVE_REGISTER_SHRINKER */
+#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
-/* Using kernel fls(). Userspace will use one defined in user-bitops.h. */
-#ifndef __fls
-#define __fls fls
+#ifndef FMODE_UNSIGNED_OFFSET
+#define FMODE_UNSIGNED_OFFSET ((__force fmode_t)0x2000)
#endif
-#ifdef HAVE_INVALIDATE_INODE_PAGES
-#define invalidate_mapping_pages(mapping,s,e) invalidate_inode_pages(mapping)
+#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 HAVE_INODE_IPRIVATE
-#define INODE_PRIVATE_DATA(inode) ((inode)->i_private)
+#ifdef ATTR_TIMES_SET
+# define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)
#else
-#define INODE_PRIVATE_DATA(inode) ((inode)->u.generic_ip)
+# define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET)
#endif
-#ifndef SLAB_DESTROY_BY_RCU
-#define SLAB_DESTROY_BY_RCU 0
+#ifndef HAVE_LM_XXX_LOCK_MANAGER_OPS
+# define lm_compare_owner fl_compare_owner
#endif
-#ifdef HAVE_SB_HAS_QUOTA_ACTIVE
-#define ll_sb_has_quota_active(sb, type) sb_has_quota_active(sb, type)
-#else
-#define ll_sb_has_quota_active(sb, type) sb_has_quota_enabled(sb, type)
+/*
+ * 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_SB_ANY_QUOTA_ACTIVE
-#define ll_sb_any_quota_active(sb) sb_any_quota_active(sb)
+#ifdef HAVE_VOID_MAKE_REQUEST_FN
+# define ll_mrf_ret void
+# define LL_MRF_RETURN(rc)
#else
-#define ll_sb_any_quota_active(sb) sb_any_quota_enabled(sb)
+# define ll_mrf_ret int
+# define LL_MRF_RETURN(rc) RETURN(rc)
#endif
-static inline int
-ll_quota_on(struct super_block *sb, int off, int ver, char *name, int remount)
+#include <linux/fs.h>
+#ifndef HAVE_PROTECT_I_NLINK
+static inline void set_nlink(struct inode *inode, unsigned int nlink)
{
- if (sb->s_qcop->quota_on) {
- return sb->s_qcop->quota_on(sb, off, ver, name
-#ifdef HAVE_QUOTA_ON_5ARGS
- , remount
-#endif
- );
- }
- else
- return -ENOSYS;
+ inode->i_nlink = nlink;
}
+#endif
-static inline int ll_quota_off(struct super_block *sb, int off, int remount)
-{
- if (sb->s_qcop->quota_off) {
- return sb->s_qcop->quota_off(sb, off
-#ifdef HAVE_QUOTA_OFF_3ARGS
- , remount
+#ifdef HAVE_INODEOPS_USE_UMODE_T
+# define ll_umode_t umode_t
+#else
+# define ll_umode_t int
#endif
- );
- }
- else
- return -ENOSYS;
-}
+#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_VFS_RENAME_MUTEX
-#define VFS_RENAME_LOCK(inode) mutex_lock(&((inode)->i_sb->s_vfs_rename_mutex))
-#define VFS_RENAME_UNLOCK(inode) mutex_unlock(&((inode)->i_sb->s_vfs_rename_mutex))
+#ifdef HAVE_DIRTY_INODE_HAS_FLAG
+# define ll_dirty_inode(inode, flag) (inode)->i_sb->s_op->dirty_inode((inode), flag)
#else
-#define VFS_RENAME_LOCK(inode) down(&((inode)->i_sb->s_vfs_rename_sem))
-#define VFS_RENAME_UNLOCK(inode) up(&((inode)->i_sb->s_vfs_rename_sem))
+# define ll_dirty_inode(inode, flag) (inode)->i_sb->s_op->dirty_inode((inode))
#endif
-#endif /* __KERNEL__ */
#endif /* _COMPAT25_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff