LU-10092 llite: Add persistent cache on client

[fs/lustre-release.git] / lustre / include / lustre_compat.h

diff --git a/lustre/include/lustre_compat.h b/lustre/include/lustre_compat.h
index 66a5bb7..284f4ee 100644 (file)
--- a/lustre/include/lustre_compat.h
+++ b/lustre/include/lustre_compat.h
@@ -99,8 +99,6 @@ static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
 #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)
@@ -144,8 +142,12 @@ static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
 #define simple_setattr(dentry, ops) inode_setattr((dentry)->d_inode, ops)
 #endif
 
-#ifndef SLAB_DESTROY_BY_RCU
-#define SLAB_DESTROY_BY_RCU 0
+#ifndef HAVE_INIT_LIST_HEAD_RCU
+static inline void INIT_LIST_HEAD_RCU(struct list_head *list)
+{
+       WRITE_ONCE(list->next, list);
+       WRITE_ONCE(list->prev, list);
+}
 #endif
 
 #ifndef HAVE_DQUOT_SUSPEND
@@ -244,6 +246,13 @@ static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
 #define DECLARE_LL_D_HLIST_NODE_PTR(name) /* nothing */
 #endif /* !DATA_FOR_LLITE_IS_LIST */
 
+#ifndef HAVE_D_IN_LOOKUP
+static inline int d_in_lookup(struct dentry *dentry)
+{
+       return false;
+}
+#endif
+
 #ifndef QUOTA_OK
 # define QUOTA_OK 0
 #endif
@@ -369,6 +378,37 @@ static inline struct inode *file_inode(const struct file *file)
 #define ll_vfs_unlink(a, b) vfs_unlink(a, b)
 #endif
 
+#ifndef HAVE_INODE_OWNER_OR_CAPABLE
+#define inode_owner_or_capable(inode) is_owner_or_cap(inode)
+#endif
+
+static inline int ll_vfs_getattr(struct path *path, struct kstat *st)
+{
+       int rc;
+
+#ifdef HAVE_INODEOPS_ENHANCED_GETATTR
+       rc = vfs_getattr(path, st, STATX_BASIC_STATS, AT_STATX_SYNC_AS_STAT);
+#elif defined HAVE_VFS_GETATTR_2ARGS
+       rc = vfs_getattr(path, st);
+#else
+       rc = vfs_getattr(path->mnt, path->dentry, st);
+#endif
+       return rc;
+}
+
+#ifndef HAVE_D_IS_POSITIVE
+static inline bool d_is_positive(const struct dentry *dentry)
+{
+       return dentry->d_inode != NULL;
+}
+#endif
+
+#ifdef HAVE_VFS_CREATE_USE_NAMEIDATA
+# define LL_VFS_CREATE_FALSE NULL
+#else
+# define LL_VFS_CREATE_FALSE false
+#endif
+
 #ifndef HAVE_INODE_LOCK
 # define inode_lock(inode) mutex_lock(&(inode)->i_mutex)
 # define inode_unlock(inode) mutex_unlock(&(inode)->i_mutex)
@@ -386,11 +426,6 @@ static inline int radix_tree_exceptional_entry(void *arg)
 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
 
@@ -694,11 +729,15 @@ static inline struct timespec current_time(struct inode *inode)
 #define alloc_workqueue(name, flags, max_active) create_workqueue(name)
 #endif
 
+#ifndef smp_store_mb
+#define smp_store_mb(var, value)       set_mb(var, value)
+#endif
+
 #ifndef READ_ONCE
 #define READ_ONCE ACCESS_ONCE
 #endif
 
-#ifdef HAVE_BLK_INTEGRITY_ENABLED
+#if IS_ENABLED(CONFIG_BLK_DEV_INTEGRITY)
 static inline unsigned short blk_integrity_interval(struct blk_integrity *bi)
 {
 #ifdef HAVE_INTERVAL_EXP_BLK_INTEGRITY
@@ -707,7 +746,7 @@ static inline unsigned short blk_integrity_interval(struct blk_integrity *bi)
        return bi->interval;
 #else
        return bi->sector_size;
-#endif
+#endif /* !HAVE_INTERVAL_EXP_BLK_INTEGRITY */
 }
 
 static inline const char *blk_integrity_name(struct blk_integrity *bi)
@@ -718,7 +757,16 @@ static inline const char *blk_integrity_name(struct blk_integrity *bi)
        return bi->name;
 #endif
 }
+
+static inline unsigned int bip_size(struct bio_integrity_payload *bip)
+{
+#ifdef HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD
+       return bip->bip_iter.bi_size;
 #else
+       return bip->bip_size;
+#endif
+}
+#else /* !CONFIG_BLK_DEV_INTEGRITY */
 static inline unsigned short blk_integrity_interval(struct blk_integrity *bi)
 {
        return 0;
@@ -728,16 +776,7 @@ static inline const char *blk_integrity_name(struct blk_integrity *bi)
        /* gcc8 dislikes when strcmp() is called against NULL */
        return "";
 }
-#endif
-
-static inline unsigned int bip_size(struct bio_integrity_payload *bip)
-{
-#ifdef HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD
-       return bip->bip_iter.bi_size;
-#else
-       return bip->bip_size;
-#endif
-}
+#endif /* !CONFIG_BLK_DEV_INTEGRITY */
 
 #ifndef INTEGRITY_FLAG_READ
 #define INTEGRITY_FLAG_READ BLK_INTEGRITY_VERIFY
@@ -749,6 +788,7 @@ static inline unsigned int bip_size(struct bio_integrity_payload *bip)
 
 static inline bool bdev_integrity_enabled(struct block_device *bdev, int rw)
 {
+#if IS_ENABLED(CONFIG_BLK_DEV_INTEGRITY)
        struct blk_integrity *bi = bdev_get_integrity(bdev);
 
        if (bi == NULL)
@@ -770,9 +810,24 @@ static inline bool bdev_integrity_enabled(struct block_device *bdev, int rw)
        if (rw == 1 && bi->generate_fn != NULL &&
            (bi->flags & INTEGRITY_FLAG_WRITE))
                return true;
-#endif
+#endif /* !HAVE_INTERVAL_EXP_BLK_INTEGRITY */
+#endif /* !CONFIG_BLK_DEV_INTEGRITY */
 
        return false;
 }
 
+#ifdef HAVE_PAGEVEC_INIT_ONE_PARAM
+#define ll_pagevec_init(pvec, n) pagevec_init(pvec)
+#else
+#define ll_pagevec_init(pvec, n) pagevec_init(pvec, n)
+#endif
+
+#ifdef HAVE_I_PAGES
+#define page_tree i_pages
+#else
+#define i_pages tree_lock
+#define xa_lock_irq(lockp) spin_lock_irq(lockp)
+#define xa_unlock_irq(lockp) spin_unlock_irq(lockp)
+#endif
+
 #endif /* _LUSTRE_COMPAT_H */