LU-11656 llite: fetch default layout for a directory

[fs/lustre-release.git] / lustre / llite / llite_internal.h

diff --git a/lustre/llite/llite_internal.h b/lustre/llite/llite_internal.h
index 7e4ac79..1649f11 100644 (file)
--- a/lustre/llite/llite_internal.h
+++ b/lustre/llite/llite_internal.h
@@ -134,10 +134,6 @@ struct ll_inode_info {
        s64                             lli_ctime;
        spinlock_t                      lli_agl_lock;
 
-       /* update atime from MDS no matter if it's older than
-        * local inode atime. */
-       unsigned int    lli_update_atime:1;
-
        /* Try to make the d::member and f::member are aligned. Before using
         * these members, make clear whether it is directory or not. */
        union {
@@ -210,10 +206,26 @@ struct ll_inode_info {
 
                        struct mutex             lli_pcc_lock;
                        enum lu_pcc_state_flags  lli_pcc_state;
+                       /*
+                        * @lli_pcc_generation saves the gobal PCC generation
+                        * when the file was successfully attached into PCC.
+                        * The flags of the PCC dataset are saved in
+                        * @lli_pcc_dsflags.
+                        * The gobal PCC generation will be increased when add
+                        * or delete a PCC backend, or change the configuration
+                        * parameters for PCC.
+                        * If @lli_pcc_generation is same as the gobal PCC
+                        * generation, we can use the saved flags of the PCC
+                        * dataset to determine whether need to try auto attach
+                        * safely.
+                        */
+                       __u64                    lli_pcc_generation;
+                       enum pcc_dataset_flags   lli_pcc_dsflags;
                        struct pcc_inode        *lli_pcc_inode;
-                       struct mutex                    lli_group_mutex;
-                       __u64                           lli_group_users;
-                       unsigned long                   lli_group_gid;
+
+                       struct mutex             lli_group_mutex;
+                       __u64                    lli_group_users;
+                       unsigned long            lli_group_gid;
                };
        };
 
@@ -269,6 +281,9 @@ enum ll_file_flags {
        LLIF_XATTR_CACHE        = 2,
        /* Project inherit */
        LLIF_PROJECT_INHERIT    = 3,
+       /* update atime from MDS even if it's older than local inode atime. */
+       LLIF_UPDATE_ATIME       = 4,
+
 };
 
 static inline void ll_file_set_flag(struct ll_inode_info *lli,
@@ -665,11 +680,6 @@ struct ll_readahead_state {
          */
        unsigned long ras_requests;
         /*
-         * Page index with respect to the current request, these value
-         * will not be accurate when dealing with reads issued via mmap.
-         */
-       unsigned long ras_request_index;
-        /*
          * The following 3 items are used for detecting the stride I/O
          * mode.
          * In stride I/O mode,
@@ -692,6 +702,10 @@ struct ll_readahead_state {
        unsigned long ras_consecutive_stride_requests;
        /* index of the last page that async readahead starts */
        pgoff_t ras_async_last_readpage;
+       /* whether we should increase readahead window */
+       bool ras_need_increase_window;
+       /* whether ra miss check should be skipped */
+       bool ras_no_miss_check;
 };
 
 struct ll_readahead_work {
@@ -784,7 +798,7 @@ static inline bool ll_sbi_has_file_heat(struct ll_sb_info *sbi)
        return !!(sbi->ll_flags & LL_SBI_FILE_HEAT);
 }
 
-void ll_ras_enter(struct file *f);
+void ll_ras_enter(struct file *f, unsigned long pos, unsigned long count);
 
 /* llite/lcommon_misc.c */
 int cl_ocd_update(struct obd_device *host, struct obd_device *watched,
@@ -796,15 +810,17 @@ void cl_put_grouplock(struct ll_grouplock *lg);
 /* llite/lproc_llite.c */
 int ll_debugfs_register_super(struct super_block *sb, const char *name);
 void ll_debugfs_unregister_super(struct super_block *sb);
-void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count);
+void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, long count);
 
 enum {
        LPROC_LL_READ_BYTES,
        LPROC_LL_WRITE_BYTES,
+       LPROC_LL_READ,
+       LPROC_LL_WRITE,
        LPROC_LL_IOCTL,
        LPROC_LL_OPEN,
        LPROC_LL_RELEASE,
-       LPROC_LL_MAP,
+       LPROC_LL_MMAP,
        LPROC_LL_FAULT,
        LPROC_LL_MKWRITE,
        LPROC_LL_LLSEEK,
@@ -823,7 +839,6 @@ enum {
        LPROC_LL_MKNOD,
        LPROC_LL_RENAME,
        LPROC_LL_STATFS,
-       LPROC_LL_ALLOC_INODE,
        LPROC_LL_SETXATTR,
        LPROC_LL_GETXATTR,
        LPROC_LL_GETXATTR_HITS,
@@ -834,6 +849,10 @@ enum {
 };
 
 /* llite/dir.c */
+enum get_default_layout_type {
+       GET_DEFAULT_LAYOUT_ROOT = 1,
+};
+
 struct ll_dir_chain {
 };
 
@@ -916,11 +935,11 @@ int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat);
 int ll_getattr_dentry(struct dentry *de, struct kstat *stat);
 struct posix_acl *ll_get_acl(struct inode *inode, int type);
 #ifdef HAVE_IOP_SET_ACL
-#ifdef CONFIG_FS_POSIX_ACL
+#ifdef CONFIG_LUSTRE_FS_POSIX_ACL
 int ll_set_acl(struct inode *inode, struct posix_acl *acl, int type);
-#else  /* !CONFIG_FS_POSIX_ACL */
+#else  /* !CONFIG_LUSTRE_FS_POSIX_ACL */
 #define ll_set_acl NULL
-#endif /* CONFIG_FS_POSIX_ACL */
+#endif /* CONFIG_LUSTRE_FS_POSIX_ACL */
 
 #endif
 int ll_migrate(struct inode *parent, struct file *file,
@@ -942,9 +961,11 @@ int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename,
                              struct ptlrpc_request **request);
 int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
                      int set_default);
-int ll_dir_getstripe(struct inode *inode, void **lmmp,
-                    int *lmm_size, struct ptlrpc_request **request,
-                    u64 valid);
+int ll_dir_getstripe_default(struct inode *inode, void **lmmp,
+                            int *lmm_size, struct ptlrpc_request **request,
+                            struct ptlrpc_request **root_request, u64 valid);
+int ll_dir_getstripe(struct inode *inode, void **plmm, int *plmm_size,
+                    struct ptlrpc_request **request, u64 valid);
 int ll_fsync(struct file *file, loff_t start, loff_t end, int data);
 int ll_merge_attr(const struct lu_env *env, struct inode *inode);
 int ll_fid2path(struct inode *inode, void __user *arg);
@@ -968,7 +989,7 @@ int ll_revalidate_it_finish(struct ptlrpc_request *request,
 extern struct super_operations lustre_super_operations;
 
 void ll_lli_init(struct ll_inode_info *lli);
-int ll_fill_super(struct super_block *sb, struct vfsmount *mnt);
+int ll_fill_super(struct super_block *sb);
 void ll_put_super(struct super_block *sb);
 void ll_kill_super(struct super_block *sb);
 struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock);
@@ -1501,4 +1522,14 @@ void cl_inode_fini(struct inode *inode);
 u64 cl_fid_build_ino(const struct lu_fid *fid, int api32);
 u32 cl_fid_build_gen(const struct lu_fid *fid);
 
+static inline struct pcc_super *ll_i2pccs(struct inode *inode)
+{
+       return &ll_i2sbi(inode)->ll_pcc_super;
+}
+
+static inline struct pcc_super *ll_info2pccs(struct ll_inode_info *lli)
+{
+       return ll_i2pccs(ll_info2i(lli));
+}
+
 #endif /* LLITE_INTERNAL_H */