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[src/ad-namecache]: src/sys/sys Regen.



details:   https://anonhg.NetBSD.org/src/rev/7cfce7703fb3
branches:  ad-namecache
changeset: 982999:7cfce7703fb3
user:      ad <ad%NetBSD.org@localhost>
date:      Sun Jan 19 21:24:01 2020 +0000

description:
Regen.

diffstat:

 sys/sys/namei.h |  54 ++++++++++++++++++++++++++++++++++++------------------
 1 files changed, 36 insertions(+), 18 deletions(-)

diffs (140 lines):

diff -r 081392be94f9 -r 7cfce7703fb3 sys/sys/namei.h
--- a/sys/sys/namei.h   Sun Jan 19 21:23:36 2020 +0000
+++ b/sys/sys/namei.h   Sun Jan 19 21:24:01 2020 +0000
@@ -1,11 +1,11 @@
-/*     $NetBSD: namei.h,v 1.103.2.3 2020/01/17 21:47:37 ad Exp $       */
+/*     $NetBSD: namei.h,v 1.103.2.4 2020/01/19 21:24:01 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 1.47.2.3 2020/01/14 11:07:40 ad Exp 
+ *   from: NetBSD: namei.src,v 1.47.2.5 2020/01/19 21:19:25 ad Exp 
  */
 
 /*
@@ -47,6 +47,7 @@
 
 #ifdef _KERNEL
 #include <sys/kauth.h>
+#include <sys/rwlock.h>
 
 /*
  * Abstraction for a single pathname.
@@ -159,13 +160,14 @@
                                           (pseudo) */
 #define        EMULROOTSET     0x00000080      /* emulation root already
                                           in ni_erootdir */
+#define        LOCKSHARED      0x00000100      /* want shared locks if possible */
 #define        NOCHROOT        0x01000000      /* no chroot on abs path lookups */
-#define        MODMASK         0x010000fc      /* mask of operational modifiers */
+#define        MODMASK         0x010001fc      /* mask of operational modifiers */
 /*
  * Namei parameter descriptors.
  */
-#define        NOCROSSMOUNT    0x0000100       /* do not cross mount points */
-#define        RDONLY          0x0000200       /* lookup with read-only semantics */
+#define        NOCROSSMOUNT    0x0000800       /* do not cross mount points */
+#define        RDONLY          0x0001000       /* lookup with read-only semantics */
 #define        ISDOTDOT        0x0002000       /* current component name is .. */
 #define        MAKEENTRY       0x0004000       /* entry is to be added to name cache */
 #define        ISLASTCN        0x0008000       /* this is last component of pathname */
@@ -173,7 +175,7 @@
 #define        DOWHITEOUT      0x0040000       /* do whiteouts */
 #define        REQUIREDIR      0x0080000       /* must be a directory */
 #define        CREATEDIR       0x0200000       /* trailing slashes are ok */
-#define        PARAMASK        0x02ee300       /* mask of parameter descriptors */
+#define        PARAMASK        0x02ef800       /* mask of parameter descriptors */
 
 /*
  * Initialization of a nameidata structure.
@@ -209,7 +211,8 @@
  *
  * 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.
+ * good use of space and the CPU caches; nc_name is aligned on an 8-byte
+ * boundary to make string comparisons cheaper.
  *
  * Field markings and their corresponding locks:
  *
@@ -219,16 +222,19 @@
  * l  protected by cache_lru_lock
  * u  accesses are unlocked, no serialization applied
  */
+struct nchnode;
 struct namecache {
-       struct rb_node nc_node;         /* d  red-black tree node */
+       struct  rb_node nc_tree;        /* d  red-black tree, must be first */
+       TAILQ_ENTRY(namecache) nc_list; /* v  vp's list of cache entries */
        TAILQ_ENTRY(namecache) nc_lru;  /* l  pseudo-lru chain */
-       TAILQ_ENTRY(namecache) nc_vlist;/* v  vp's list of cache entries */
-       struct  vnode *nc_dvp;          /* -  vnode of parent of name */
+       struct  nchnode *nc_dnn;        /* -  nchnode of parent of name */
+       struct  nchnode *nc_nn;         /* -  nchnode the name refers to */
        struct  vnode *nc_vp;           /* -  vnode the name refers to */
+       int64_t nc_key;                 /* -  hash key */
        int     nc_lrulist;             /* l  which LRU list its on */
-       u_short nc_nlen;                /* -  length of name */
-       bool    nc_whiteout;            /* -  true if a whiteout */
-       char    nc_name[49];            /* -  segment name */
+       short   nc_nlen;                /* -  length of the name */
+       char    nc_whiteout;            /* -  true if a whiteout */
+       char    nc_name[33];            /* -  segment name */
 };
 #endif
 
@@ -292,9 +298,16 @@
                        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_set_id(struct vnode *, mode_t, uid_t, gid_t);
+void   cache_update_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 *);
@@ -326,6 +339,10 @@
        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_active;     /* active cache entries */              \
+       type    ncs_inactive;   /* inactive cache entries */            \
+       type    ncs_denied;     /* access denied */                     \
 }
 
 /*
@@ -349,10 +366,11 @@
 #define NAMEI_FOLLOW   0x00000040
 #define NAMEI_NOFOLLOW 0x00000000
 #define NAMEI_EMULROOTSET      0x00000080
+#define NAMEI_LOCKSHARED       0x00000100
 #define NAMEI_NOCHROOT 0x01000000
-#define NAMEI_MODMASK  0x010000fc
-#define NAMEI_NOCROSSMOUNT     0x0000100
-#define NAMEI_RDONLY   0x0000200
+#define NAMEI_MODMASK  0x010001fc
+#define NAMEI_NOCROSSMOUNT     0x0000800
+#define NAMEI_RDONLY   0x0001000
 #define NAMEI_ISDOTDOT 0x0002000
 #define NAMEI_MAKEENTRY        0x0004000
 #define NAMEI_ISLASTCN 0x0008000
@@ -360,6 +378,6 @@
 #define NAMEI_DOWHITEOUT       0x0040000
 #define NAMEI_REQUIREDIR       0x0080000
 #define NAMEI_CREATEDIR        0x0200000
-#define NAMEI_PARAMASK 0x02ee300
+#define NAMEI_PARAMASK 0x02ef800
 
 #endif /* !_SYS_NAMEI_H_ */



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