merge(3p/git): Merge git subtree at v2.29.2 r/1890

This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because
there is some breakage in the git build related to the netrc
credentials helper which someone has taken care of in nixpkgs.

The stable channel is not used for anything other than git, so this
should be fine.

Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb

1 files changed, 6 insertions, 6 deletions

diff --git a/third_party/git/compat/nedmalloc/malloc.c.h b/third_party/git/compat/nedmalloc/malloc.c.h
index b833ff9225e7..814845d4b33f 100644
--- a/third_party/git/compat/nedmalloc/malloc.c.h
+++ b/third_party/git/compat/nedmalloc/malloc.c.h
@@ -1564,7 +1564,7 @@ static FORCEINLINE void* win32direct_mmap(size_t size) {
   return (ptr != 0)? ptr: MFAIL;
 }
 
-/* This function supports releasing coalesed segments */
+/* This function supports releasing coalesced segments */
 static FORCEINLINE int win32munmap(void* ptr, size_t size) {
   MEMORY_BASIC_INFORMATION minfo;
   char* cptr = (char*)ptr;
@@ -1655,7 +1655,7 @@ static FORCEINLINE int win32munmap(void* ptr, size_t size) {
     #define CALL_MREMAP(addr, osz, nsz, mv)     MFAIL
 #endif /* HAVE_MMAP && HAVE_MREMAP */
 
-/* mstate bit set if continguous morecore disabled or failed */
+/* mstate bit set if contiguous morecore disabled or failed */
 #define USE_NONCONTIGUOUS_BIT (4U)
 
 /* segment bit set in create_mspace_with_base */
@@ -1755,10 +1755,10 @@ static FORCEINLINE void pthread_release_lock (MLOCK_T *sl) {
   assert(sl->l != 0);
   assert(sl->threadid == CURRENT_THREAD);
   if (--sl->c == 0) {
-    sl->threadid = 0;
     volatile unsigned int* lp = &sl->l;
     int prev = 0;
     int ret;
+    sl->threadid = 0;
     __asm__ __volatile__ ("lock; xchgl %0, %1"
 			  : "=r" (ret)
 			  : "m" (*(lp)), "0"(prev)
@@ -2485,7 +2485,7 @@ typedef struct malloc_segment* msegmentptr;
 
   Trim support
     Fields holding the amount of unused topmost memory that should trigger
-    timming, and a counter to force periodic scanning to release unused
+    timing, and a counter to force periodic scanning to release unused
     non-topmost segments.
 
   Locking
@@ -3066,7 +3066,7 @@ static int init_mparams(void) {
 #if !ONLY_MSPACES
     /* Set up lock for main malloc area */
     gm->mflags = mparams.default_mflags;
-    INITIAL_LOCK(&gm->mutex);
+    (void)INITIAL_LOCK(&gm->mutex);
 #endif
 
 #if (FOOTERS && !INSECURE)
@@ -5017,7 +5017,7 @@ static mstate init_user_mstate(char* tbase, size_t tsize) {
   mchunkptr msp = align_as_chunk(tbase);
   mstate m = (mstate)(chunk2mem(msp));
   memset(m, 0, msize);
-  INITIAL_LOCK(&m->mutex);
+  (void)INITIAL_LOCK(&m->mutex);
   msp->head = (msize|PINUSE_BIT|CINUSE_BIT);
   m->seg.base = m->least_addr = tbase;
   m->seg.size = m->footprint = m->max_footprint = tsize;