[glibc] - Replace patch for 789238 with official version from upstream.

Jeffrey Law law at fedoraproject.org
Fri Aug 10 15:44:50 UTC 2012


commit 49bbcdd4a054a68ea966c4eebbe926bbff94fdeb
Author: Jeff Law <law at redhat.com>
Date:   Fri Aug 10 09:44:26 2012 -0600

      - Replace patch for 789238 with official version from upstream.

 glibc-rh789238-2.patch |  111 --------------------------------------
 glibc-rh789238.patch   |  139 +++++++++++++++++++++++++++++++++++++++++-------
 glibc.spec             |   15 ++---
 3 files changed, 126 insertions(+), 139 deletions(-)
---
diff --git a/glibc-rh789238.patch b/glibc-rh789238.patch
index 1801123..403b840 100644
--- a/glibc-rh789238.patch
+++ b/glibc-rh789238.patch
@@ -1,21 +1,116 @@
-Only in b/malloc: arena.c.orig
-Only in b/malloc: hooks.c.orig
-diff -rup a/malloc/malloc.c b/malloc/malloc.c
---- a/malloc/malloc.c	2012-02-14 10:08:22.062534892 -0700
-+++ b/malloc/malloc.c	2012-02-14 10:19:43.088724473 -0700
-@@ -2936,8 +2936,9 @@ public_mALLOc(size_t bytes)
+2012-08-09  Jeff Law <law at redhat.com>
+
+	[BZ #13939]
+	* malloc.c/arena.c (reused_arena): New parameter, avoid_arena.
+	When avoid_arena is set, don't retry in the that arena.  Pick the
+	next one, whatever it might be.
+	(arena_get2): New parameter avoid_arena, pass through to reused_arena.
+	(arena_lock): Pass in new parameter to arena_get2.
+	* malloc/malloc.c (__libc_memalign): Pass in new parameter to
+	arena_get2.
+	(__libc_malloc): Unify retrying after main arena failure with
+	__libc_memalign version.
+	(__libc_valloc, __libc_pvalloc, __libc_calloc): Likewise.
+
+diff --git a/malloc/arena.c b/malloc/arena.c
+index 33c4ff3..7270bbe 100644
+--- a/malloc/arena.c
++++ b/malloc/arena.c
+@@ -120,14 +120,14 @@ int __malloc_initialized = -1;
+   if(ptr) \
+     (void)mutex_lock(&ptr->mutex); \
+   else \
+-    ptr = arena_get2(ptr, (size)); \
++    ptr = arena_get2(ptr, (size), NULL); \
+ } while(0)
+ #else
+ # define arena_lock(ptr, size) do { \
+   if(ptr && !mutex_trylock(&ptr->mutex)) { \
+     THREAD_STAT(++(ptr->stat_lock_direct)); \
+   } else \
+-    ptr = arena_get2(ptr, (size)); \
++    ptr = arena_get2(ptr, (size), NULL); \
+ } while(0)
+ #endif
+ 
+@@ -778,9 +778,11 @@ get_free_list (void)
+   return result;
+ }
+ 
+-
++/* Lock and return an arena that can be reused for memory allocation. 
++   Avoid AVOID_ARENA as we have already failed to allocate memory in
++   it and it is currently locked.  */
+ static mstate
+-reused_arena (void)
++reused_arena (mstate avoid_arena)
+ {
+   mstate result;
+   static mstate next_to_use;
+@@ -797,6 +799,11 @@ reused_arena (void)
+     }
+   while (result != next_to_use);
+ 
++  /* Avoid AVOID_ARENA as we have already failed to allocate memory
++     in that arena and it is currently locked.   */
++  if (result == avoid_arena)
++    result = result->next;
++
+   /* No arena available.  Wait for the next in line.  */
+   (void)mutex_lock(&result->mutex);
+ 
+@@ -811,7 +818,7 @@ reused_arena (void)
+ 
+ static mstate
+ internal_function
+-arena_get2(mstate a_tsd, size_t size)
++arena_get2(mstate a_tsd, size_t size, mstate avoid_arena)
+ {
+   mstate a;
+ 
+@@ -856,7 +863,7 @@ arena_get2(mstate a_tsd, size_t size)
+ 	    catomic_decrement (&narenas);
+ 	}
+       else
+-	a = reused_arena ();
++	a = reused_arena (avoid_arena);
+     }
+ #else
+   if(!a_tsd)
+diff --git a/malloc/malloc.c b/malloc/malloc.c
+index 28039b4..1e4f929 100644
+--- a/malloc/malloc.c
++++ b/malloc/malloc.c
+@@ -2865,9 +2865,11 @@ __libc_malloc(size_t bytes)
+       victim = _int_malloc(ar_ptr, bytes);
        (void)mutex_unlock(&ar_ptr->mutex);
      } else {
-       /* ... or sbrk() has failed and there is still a chance to mmap() */
+-      /* ... or sbrk() has failed and there is still a chance to mmap() */
 -      ar_ptr = arena_get2(ar_ptr->next ? ar_ptr : 0, bytes);
 -      (void)mutex_unlock(&main_arena.mutex);
++      /* ... or sbrk() has failed and there is still a chance to mmap() 
++ 	 Grab ar_ptr->next prior to releasing its lock.  */
 +      mstate prev = ar_ptr->next ? ar_ptr : 0;
 +      (void)mutex_unlock(&ar_ptr->mutex);
-+      ar_ptr = arena_get2(prev, bytes);
++      ar_ptr = arena_get2(prev, bytes, ar_ptr);
        if(ar_ptr) {
  	victim = _int_malloc(ar_ptr, bytes);
  	(void)mutex_unlock(&ar_ptr->mutex);
-@@ -3151,23 +3152,26 @@ public_vALLOc(size_t bytes)
+@@ -3043,10 +3045,11 @@ __libc_memalign(size_t alignment, size_t bytes)
+       p = _int_memalign(ar_ptr, alignment, bytes);
+       (void)mutex_unlock(&ar_ptr->mutex);
+     } else {
+-      /* ... or sbrk() has failed and there is still a chance to mmap() */
++      /* ... or sbrk() has failed and there is still a chance to mmap()
++ 	 Grab ar_ptr->next prior to releasing its lock.  */
+       mstate prev = ar_ptr->next ? ar_ptr : 0;
+       (void)mutex_unlock(&ar_ptr->mutex);
+-      ar_ptr = arena_get2(prev, bytes);
++      ar_ptr = arena_get2(prev, bytes, ar_ptr);
+       if(ar_ptr) {
+ 	p = _int_memalign(ar_ptr, alignment, bytes);
+ 	(void)mutex_unlock(&ar_ptr->mutex);
+@@ -3083,23 +3086,27 @@ __libc_valloc(size_t bytes)
    if(!ar_ptr)
      return 0;
    p = _int_valloc(ar_ptr, bytes);
@@ -29,11 +124,13 @@ diff -rup a/malloc/malloc.c b/malloc/malloc.c
        p = _int_memalign(ar_ptr, pagesz, bytes);
        (void)mutex_unlock(&ar_ptr->mutex);
      } else {
-       /* ... or sbrk() has failed and there is still a chance to mmap() */
+-      /* ... or sbrk() has failed and there is still a chance to mmap() */
 -      ar_ptr = arena_get2(ar_ptr->next ? ar_ptr : 0, bytes);
++      /* ... or sbrk() has failed and there is still a chance to mmap()
++ 	 Grab ar_ptr->next prior to releasing its lock.  */
 +      mstate prev = ar_ptr->next ? ar_ptr : 0;
 +      (void)mutex_unlock(&ar_ptr->mutex);
-+      ar_ptr = arena_get2(prev, bytes);
++      ar_ptr = arena_get2(prev, bytes, ar_ptr);
        if(ar_ptr) {
  	p = _int_memalign(ar_ptr, pagesz, bytes);
  	(void)mutex_unlock(&ar_ptr->mutex);
@@ -41,11 +138,11 @@ diff -rup a/malloc/malloc.c b/malloc/malloc.c
      }
 -  }
 +  } else
-+    (void)mutex_unlock(&ar_ptr->mutex);
++    (void)mutex_unlock (&ar_ptr->mutex);
    assert(!p || chunk_is_mmapped(mem2chunk(p)) ||
  	 ar_ptr == arena_for_chunk(mem2chunk(p)));
  
-@@ -3195,24 +3199,26 @@ public_pVALLOc(size_t bytes)
+@@ -3127,24 +3134,27 @@ __libc_pvalloc(size_t bytes)
  
    arena_get(ar_ptr, bytes + 2*pagesz + MINSIZE);
    p = _int_pvalloc(ar_ptr, bytes);
@@ -59,12 +156,14 @@ diff -rup a/malloc/malloc.c b/malloc/malloc.c
        p = _int_memalign(ar_ptr, pagesz, rounded_bytes);
        (void)mutex_unlock(&ar_ptr->mutex);
      } else {
-       /* ... or sbrk() has failed and there is still a chance to mmap() */
+-      /* ... or sbrk() has failed and there is still a chance to mmap() */
 -      ar_ptr = arena_get2(ar_ptr->next ? ar_ptr : 0,
 -			  bytes + 2*pagesz + MINSIZE);
++      /* ... or sbrk() has failed and there is still a chance to mmap()
++ 	 Grab ar_ptr->next prior to releasing its lock.  */
 +      mstate prev = ar_ptr->next ? ar_ptr : 0;
 +      (void)mutex_unlock(&ar_ptr->mutex);
-+      ar_ptr = arena_get2(prev, bytes + 2*pagesz + MINSIZE);
++      ar_ptr = arena_get2(prev, bytes + 2*pagesz + MINSIZE, ar_ptr);
        if(ar_ptr) {
  	p = _int_memalign(ar_ptr, pagesz, rounded_bytes);
  	(void)mutex_unlock(&ar_ptr->mutex);
@@ -76,7 +175,7 @@ diff -rup a/malloc/malloc.c b/malloc/malloc.c
    assert(!p || chunk_is_mmapped(mem2chunk(p)) ||
  	 ar_ptr == arena_for_chunk(mem2chunk(p)));
  
-@@ -3277,8 +3283,6 @@ public_cALLOc(size_t n, size_t elem_size
+@@ -3209,8 +3219,6 @@ __libc_calloc(size_t n, size_t elem_size)
  #endif
    mem = _int_malloc(av, sz);
  
@@ -85,7 +184,7 @@ diff -rup a/malloc/malloc.c b/malloc/malloc.c
  
    assert(!mem || chunk_is_mmapped(mem2chunk(mem)) ||
  	 av == arena_for_chunk(mem2chunk(mem)));
-@@ -3286,21 +3290,23 @@ public_cALLOc(size_t n, size_t elem_size
+@@ -3218,21 +3226,24 @@ __libc_calloc(size_t n, size_t elem_size)
    if (mem == 0) {
      /* Maybe the failure is due to running out of mmapped areas. */
      if(av != &main_arena) {
@@ -94,13 +193,15 @@ diff -rup a/malloc/malloc.c b/malloc/malloc.c
        mem = _int_malloc(&main_arena, sz);
        (void)mutex_unlock(&main_arena.mutex);
      } else {
-       /* ... or sbrk() has failed and there is still a chance to mmap() */
+-      /* ... or sbrk() has failed and there is still a chance to mmap() */
 -      (void)mutex_lock(&main_arena.mutex);
 -      av = arena_get2(av->next ? av : 0, sz);
 -      (void)mutex_unlock(&main_arena.mutex);
++      /* ... or sbrk() has failed and there is still a chance to mmap()
++ 	 Grab av->next prior to releasing its lock.  */
 +      mstate prev = av->next ? av : 0;
 +      (void)mutex_unlock(&av->mutex);
-+      av = arena_get2(prev, sz);
++      av = arena_get2(prev, sz, av);
        if(av) {
  	mem = _int_malloc(av, sz);
  	(void)mutex_unlock(&av->mutex);
diff --git a/glibc.spec b/glibc.spec
index 3bcf203..751eb68 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -28,7 +28,7 @@
 Summary: The GNU libc libraries
 Name: glibc
 Version: %{glibcversion}
-Release: 7%{?dist}
+Release: 8%{?dist}
 # GPLv2+ is used in a bunch of programs, LGPLv2+ is used for libraries.
 # Things that are linked directly into dynamically linked programs
 # and shared libraries (e.g. crt files, lib*_nonshared.a) have an additional
@@ -109,6 +109,7 @@ Patch0034: %{name}-rh841318.patch
 #
 # Patches from upstream
 #
+Patch1025: %{name}-rh789238.patch
 Patch1035: %{name}-rh845960.patch
 
 
@@ -141,9 +142,6 @@ Patch2022: %{name}-rh791161.patch
 # Upstream BZ 9954
 Patch2024: %{name}-rh739743.patch
 
-# Upstream BZ 13939
-Patch2025: %{name}-rh789238.patch
-
 #Upstream BZ 13818
 Patch2026: %{name}-rh800224.patch
 
@@ -153,9 +151,6 @@ Patch2027: %{name}-rh827510.patch
 Patch2028: %{name}-rh803286.patch
 
 
-# Upstream BZ 13939
-Patch2029: %{name}-rh789238-2.patch
-
 # Upstream BZ 13761
 Patch2030: %{name}-rh788989-2.patch
 
@@ -413,11 +408,10 @@ rm -rf %{glibcportsdir}
 %patch2021 -p1
 %patch2022 -p1
 %patch2024 -p1
-%patch2025 -p1
+%patch1025 -p1
 %patch2026 -p1
 %patch2027 -p1
 %patch2028 -p1
-%patch2029 -p1
 %patch2030 -p1
 %patch2031 -p1
 %patch2032 -p1
@@ -1308,6 +1302,9 @@ rm -f *.filelist*
 %endif
 
 %changelog
+* Fri Aug 10 2012 Jeff Law <law at redhat.com> - 2.16-8
+  - Replace patch for 789238 with official version from upstream.
+
 * Wed Jul 25 2012 Jeff Law <law at redhat.com> - 2.16-7
   - Pack IPv4 servers at the start of nsaddr_list and
     only track the number of IPV4 servers in EXT(statp->nscounti (#808147)


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