[src/trunk]: src/sys/sys Regen.

[ad <ad%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/89bb97f51a4d
branches:  trunk
changeset: 1008416:89bb97f51a4d
user:      ad <ad%NetBSD.org@localhost>
date:      Sun Mar 22 14:39:03 2020 +0000

description:
Regen.

diffstat:

 sys/rump/include/rump/rump_namei.h |   4 +-
 sys/sys/namei.h                    |  72 ++++++++++++++++++++++---------------
 2 files changed, 44 insertions(+), 32 deletions(-)

diffs (146 lines):

diff -r cd8a6f20a42a -r 89bb97f51a4d sys/rump/include/rump/rump_namei.h
--- a/sys/rump/include/rump/rump_namei.h        Sun Mar 22 14:38:37 2020 +0000
+++ b/sys/rump/include/rump/rump_namei.h        Sun Mar 22 14:39:03 2020 +0000
@@ -1,11 +1,11 @@
-/*     $NetBSD: rump_namei.h,v 1.38 2020/01/08 12:06:09 ad Exp $       */
+/*     $NetBSD: rump_namei.h,v 1.39 2020/03/22 14:39:03 ad Exp $       */
 
 
 /*
  * WARNING: GENERATED FILE.  DO NOT EDIT
  * (edit namei.src and run make namei in src/sys/sys)
  *   by:   NetBSD: gennameih.awk,v 1.5 2009/12/23 14:17:19 pooka Exp 
- *   from: NetBSD: namei.src,v 1.48 2020/01/08 12:04:56 ad Exp 
+ *   from: NetBSD: namei.src,v 1.49 2020/03/22 14:38:37 ad Exp 
  */
 
 #ifndef _RUMP_RUMP_NAMEI_H_
diff -r cd8a6f20a42a -r 89bb97f51a4d sys/sys/namei.h
--- a/sys/sys/namei.h   Sun Mar 22 14:38:37 2020 +0000
+++ b/sys/sys/namei.h   Sun Mar 22 14:39:03 2020 +0000
@@ -1,11 +1,11 @@
-/*     $NetBSD: namei.h,v 1.104 2020/01/08 12:06:10 ad Exp $   */
+/*     $NetBSD: namei.h,v 1.105 2020/03/22 14:39:03 ad Exp $   */
 
 
 /*
  * WARNING: GENERATED FILE.  DO NOT EDIT
  * (edit namei.src and run make namei in src/sys/sys)
  *   by:   NetBSD: gennameih.awk,v 1.5 2009/12/23 14:17:19 pooka Exp 
- *   from: NetBSD: namei.src,v 1.48 2020/01/08 12:04:56 ad Exp 
+ *   from: NetBSD: namei.src,v 1.49 2020/03/22 14:38:37 ad Exp 
  */
 
 /*
@@ -47,6 +47,7 @@
 
 #ifdef _KERNEL
 #include <sys/kauth.h>
+#include <sys/rwlock.h>
 
 /*
  * Abstraction for a single pathname.
@@ -196,42 +197,43 @@
 #endif
 
 #ifdef __NAMECACHE_PRIVATE
+#include <sys/rbtree.h>
+
 /*
  * For simplicity (and economy of storage), names longer than
  * a maximum length of NCHNAMLEN are stored in non-pooled storage.
  */
-#define        NCHNAMLEN       32      /* up to this size gets stored in pool */
+#define        NCHNAMLEN       sizeof(((struct namecache *)NULL)->nc_name)
 
 /*
- * Namecache entry.  
- * This structure describes the elements in the cache of recent
- * names looked up by namei.
+ * Namecache entry.
  *
- * Locking rules:
+ * This structure describes the elements in the cache of recent names looked
+ * up by namei.  It's carefully sized to take up 128 bytes on _LP64, to make
+ * good use of space and the CPU caches.  Items used during RB tree lookup
+ * (nc_tree, nc_key) are clustered at the start of the structure.
  *
- *      -       stable after initialization
- *      L       namecache_lock
- *      C       struct nchcpu::cpu_lock
- *      L/C     insert needs L, read needs L or any C,
- *              must hold L and all C after (or during) delete before free
- *      N       struct namecache::nc_lock
+ * Field markings and their corresponding locks:
+ *
+ * -  stable throught the lifetime of the namecache entry
+ * d  protected by nc_dvp->vi_ncdlock
+ * v  protected by nc_dvp->vi_ncvlock
+ * l  protected by cache_lru_lock
+ * u  accesses are unlocked, no serialization applied
  */
+struct nchnode;
 struct namecache {
-       LIST_ENTRY(namecache) nc_hash;  /* L/C hash chain */
-       TAILQ_ENTRY(namecache) nc_lru;  /* L pseudo-lru chain */
-       LIST_ENTRY(namecache) nc_dvlist;/* L dvp's list of cache entries */
-       TAILQ_ENTRY(namecache) nc_vlist;/* L vp's list of cache entries */
-       struct  vnode *nc_dvp;          /* N vnode of parent of name */
-       struct  vnode *nc_vp;           /* N vnode the name refers to */
-       void    *nc_gcqueue;            /* N queue for garbage collection */
-       kmutex_t nc_lock;               /*   lock on this entry */
-       int     nc_hittime;             /* N last time scored a hit */
-       int     nc_flags;               /* - copy of componentname ISWHITEOUT */
-       u_short nc_nlen;                /* - length of name */
-       char    nc_name[0];             /* - segment name */
+       struct  rb_node nc_tree;        /* d  red-black tree, must be first */
+       int64_t nc_key;                 /* -  hash key */
+       TAILQ_ENTRY(namecache) nc_list; /* v  vp's list of cache entries */
+       TAILQ_ENTRY(namecache) nc_lru;  /* l  pseudo-lru chain */
+       struct  vnode *nc_dvp;          /* -  vnode of parent of name */
+       struct  vnode *nc_vp;           /* -  vnode the name refers to */
+       int     nc_lrulist;             /* l  which LRU list its on */
+       short   nc_nlen;                /* -  length of the name */
+       char    nc_whiteout;            /* -  true if a whiteout */
+       char    nc_name[41];            /* -  segment name */
 };
-__CTASSERT((sizeof(struct namecache) + NCHNAMLEN)
-    % __alignof(struct namecache) == 0);
 #endif
 
 #ifdef _KERNEL
@@ -294,14 +296,22 @@
                        int *, struct vnode **);
 bool   cache_lookup_raw(struct vnode *, const char *, size_t, uint32_t,
                        int *, struct vnode **);
-int    cache_revlookup(struct vnode *, struct vnode **, char **, char *);
+bool   cache_lookup_linked(struct vnode *, const char *, size_t,
+                           struct vnode **, krwlock_t **, kauth_cred_t);
+int    cache_revlookup(struct vnode *, struct vnode **, char **, char *,
+                       bool, int);
+int    cache_diraccess(struct vnode *, int);
 void   cache_enter(struct vnode *, struct vnode *,
                        const char *, size_t, uint32_t);
+void   cache_enter_id(struct vnode *, mode_t, uid_t, gid_t);
+bool   cache_have_id(struct vnode *);
+void   cache_vnode_init(struct vnode * );
+void   cache_vnode_fini(struct vnode * );
+void   cache_cpu_init(struct cpu_info *);
+
 void   nchinit(void);
-void   nchreinit(void);
 void   namecache_count_pass2(void);
 void   namecache_count_2passes(void);
-void   cache_cpu_init(struct cpu_info *);
 void   cache_purgevfs(struct mount *);
 void   namecache_print(struct vnode *, void (*)(const char *, ...)
     __printflike(1, 2));
@@ -326,6 +336,8 @@
        type    ncs_2passes;    /* number of times we attempt it (U) */ \
        type    ncs_revhits;    /* reverse-cache hits */                \
        type    ncs_revmiss;    /* reverse-cache misses */              \
+       type    ncs_collisions; /* hash value collisions */             \
+       type    ncs_denied;     /* access denied */                     \
 }
 
 /*