Update.

2004-09-10  Ulrich Drepper  <drepper@redhat.com>

	* nscd/nscd.c (pagesize_m1): New variable.
	(main): Initialize it.
	* nscd/nscd.h: Declare pagesize_m1.
	* nscd/hstcache.c: Pass correctly aligned address to msync.
	* nscd/grpcache.c: Likewise.
	* nscd/pwdcache.c: Likewise.

diff --git a/ChangeLog b/ChangeLog
index 8d3e98e..f0c91e3 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2004-09-10  Ulrich Drepper  <drepper@redhat.com>
+
+       * nscd/nscd.c (pagesize_m1): New variable.
+       (main): Initialize it.
+       * nscd/nscd.h: Declare pagesize_m1.
+       * nscd/hstcache.c: Pass correctly aligned address to msync.
+       * nscd/grpcache.c: Likewise.
+       * nscd/pwdcache.c: Likewise.
+
 2004-09-10  Kaz Kojima  <kkojima@rr.iij4u.or.jp>
 
        * sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S: Decrement

diff --git a/nscd/grpcache.c b/nscd/grpcache.c
index 7315eec..d07693f 100644 (file)
--- a/nscd/grpcache.c
+++ b/nscd/grpcache.c
@@ -291,8 +291,13 @@ cache_addgr (struct database_dyn *db, int fd, request_header *req,
        {
          /* If necessary, we also propagate the data to disk.  */
          if (db->persistent)
-           // XXX async OK?
-           msync (dataset, total + n, MS_ASYNC);
+           {
+             // XXX async OK?
+             uintptr_t pval = (uintptr_t) dataset & ~pagesize_m1;
+             msync ((void *) pval,
+                    ((uintptr_t) dataset & pagesize_m1) + total + n,
+                    MS_ASYNC);
+           }
 
          /* Now get the lock to safely insert the records.  */
          pthread_rwlock_rdlock (&db->lock);

diff --git a/nscd/hstcache.c b/nscd/hstcache.c
index 94568d0..78e29fb 100644 (file)
--- a/nscd/hstcache.c
+++ b/nscd/hstcache.c
@@ -332,8 +332,13 @@ cache_addhst (struct database_dyn *db, int fd, request_header *req,
        {
          /* If necessary, we also propagate the data to disk.  */
          if (db->persistent)
-           // XXX async OK?
-           msync (dataset, total + req->key_len, MS_ASYNC);
+           {
+             // XXX async OK?
+             uintptr_t pval = (uintptr_t) dataset & ~pagesize_m1;
+             msync ((void *) pval,
+                    ((uintptr_t) dataset & pagesize_m1)
+                    + total + req->key_len, MS_ASYNC);
+           }
 
          addr_list_type = (hst->h_length == NS_INADDRSZ
                            ? GETHOSTBYADDR : GETHOSTBYADDRv6);

diff --git a/nscd/nscd.c b/nscd/nscd.c
index f6b22d4..5c5c155 100644 (file)
--- a/nscd/nscd.c
+++ b/nscd/nscd.c
@@ -76,6 +76,8 @@ static const char *conffile = _PATH_NSCDCONF;
 
 time_t start_time;
 
+uintptr_t pagesize_m1;
+
 static int check_pid (const char *file);
 static int write_pid (const char *file);
 
@@ -155,6 +157,9 @@ main (int argc, char **argv)
   /* Remember when we started.  */
   start_time = time (NULL);
 
+  /* Determine page size.  */
+  pagesize_m1 = getpagesize () - 1;
+
   /* Behave like a daemon.  */
   if (go_background)
     {

diff --git a/nscd/nscd.h b/nscd/nscd.h
index 910fba3..d32f5fe 100644 (file)
--- a/nscd/nscd.h
+++ b/nscd/nscd.h
@@ -124,6 +124,9 @@ extern const size_t block_align;
    means unlimited.  */
 extern unsigned int reload_count;
 
+/* Pagesize minus one.  */
+extern uintptr_t pagesize_m1;
+
 /* Prototypes for global functions.  */
 
 /* nscd.c */

diff --git a/nscd/pwdcache.c b/nscd/pwdcache.c
index b322778..2354b6d 100644 (file)
--- a/nscd/pwdcache.c
+++ b/nscd/pwdcache.c
@@ -287,8 +287,13 @@ cache_addpw (struct database_dyn *db, int fd, request_header *req,
        {
          /* If necessary, we also propagate the data to disk.  */
          if (db->persistent)
-           // XXX async OK?
-           msync (dataset, total + n, MS_ASYNC);
+           {
+             // XXX async OK?
+             uintptr_t pval = (uintptr_t) dataset & ~pagesize_m1;
+             msync ((void *) pval,
+                    ((uintptr_t) dataset & pagesize_m1) + total + n,
+                    MS_ASYNC);
+           }
 
          /* Now get the lock to safely insert the records.  */
          pthread_rwlock_rdlock (&db->lock);