LU-10092 llite: Add persistent cache on client

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

diff --git a/lustre/llite/llite_internal.h b/lustre/llite/llite_internal.h
index 1315c5f..5f7aea2 100644 (file)
--- a/lustre/llite/llite_internal.h
+++ b/lustre/llite/llite_internal.h
@@ -48,6 +48,7 @@
 
 #include "vvp_internal.h"
 #include "range_lock.h"
+#include "pcc.h"
 
 #ifndef FMODE_EXEC
 #define FMODE_EXEC 0
@@ -213,6 +214,9 @@ struct ll_inode_info {
                         * accurate if the file is shared by different jobs.
                         */
                        char                    lli_jobid[LUSTRE_JOBID_SIZE];
+
+                       struct mutex             lli_pcc_lock;
+                       struct pcc_inode        *lli_pcc_inode;
                };
        };
 
@@ -343,6 +347,11 @@ static inline struct ll_inode_info *ll_i2info(struct inode *inode)
        return container_of(inode, struct ll_inode_info, lli_vfs_inode);
 }
 
+static inline struct pcc_inode *ll_i2pcci(struct inode *inode)
+{
+       return ll_i2info(inode)->lli_pcc_inode;
+}
+
 /* default to about 64M of readahead on a given system. */
 #define SBI_DEFAULT_READAHEAD_MAX              MiB_TO_PAGES(64UL)
 
@@ -583,6 +592,9 @@ struct ll_sb_info {
 
        /* filesystem fsname */
        char                      ll_fsname[LUSTRE_MAXFSNAME + 1];
+
+       /* Persistent Client Cache */
+       struct pcc_super          ll_pcc_super;
 };
 
 #define SBI_DEFAULT_HEAT_DECAY_WEIGHT  ((80 * 256 + 50) / 100)
@@ -698,6 +710,7 @@ struct ll_file_data {
        /* The layout version when resync starts. Resync I/O should carry this
         * layout version for verification to OST objects */
        __u32 fd_layout_version;
+       struct pcc_file fd_pcc_file;
 };
 
 void llite_tunables_unregister(void);
@@ -882,6 +895,7 @@ int ll_getattr(const struct path *path, struct kstat *stat,
 #else
 int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat);
 #endif
+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
@@ -1477,6 +1491,18 @@ static inline void d_lustre_revalidate(struct dentry *dentry)
        spin_unlock(&dentry->d_lock);
 }
 
+static inline dev_t ll_compat_encode_dev(dev_t dev)
+{
+       /* The compat_sys_*stat*() syscalls will fail unless the
+        * device majors and minors are both less than 256. Note that
+        * the value returned here will be passed through
+        * old_encode_dev() in cp_compat_stat(). And so we are not
+        * trying to return a valid compat (u16) device number, just
+        * one that will pass the old_valid_dev() check. */
+
+       return MKDEV(MAJOR(dev) & 0xff, MINOR(dev) & 0xff);
+}
+
 int ll_layout_conf(struct inode *inode, const struct cl_object_conf *conf);
 int ll_layout_refresh(struct inode *inode, __u32 *gen);
 int ll_layout_restore(struct inode *inode, loff_t start, __u64 length);