X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/994ed2bc552f4114b1f0c8dd3fd8aefaec6beeae..2753acf1d642628d01de0d2a477c5d905fb761bc:/deps/jemalloc/src/huge.c?ds=sidebyside

diff --git a/deps/jemalloc/src/huge.c b/deps/jemalloc/src/huge.c
index ac3f3a0d..a4f9b054 100644
--- a/deps/jemalloc/src/huge.c
+++ b/deps/jemalloc/src/huge.c
@@ -110,12 +110,12 @@ huge_palloc(size_t size, size_t alignment, bool zero)
 	if (offset == 0) {
 		/* Trim trailing space. */
 		chunk_dealloc((void *)((uintptr_t)ret + chunk_size), alloc_size
-		    - chunk_size);
+		    - chunk_size, true);
 	} else {
 		size_t trailsize;
 
 		/* Trim leading space. */
-		chunk_dealloc(ret, alignment - offset);
+		chunk_dealloc(ret, alignment - offset, true);
 
 		ret = (void *)((uintptr_t)ret + (alignment - offset));
 
@@ -124,7 +124,7 @@ huge_palloc(size_t size, size_t alignment, bool zero)
 		    /* Trim trailing space. */
 		    assert(trailsize < alloc_size);
 		    chunk_dealloc((void *)((uintptr_t)ret + chunk_size),
-			trailsize);
+			trailsize, true);
 		}
 	}
 
@@ -234,6 +234,13 @@ huge_ralloc(void *ptr, size_t oldsize, size_t size, size_t extra,
 	    ) {
 		size_t newsize = huge_salloc(ret);
 
+		/*
+		 * Remove ptr from the tree of huge allocations before
+		 * performing the remap operation, in order to avoid the
+		 * possibility of another thread acquiring that mapping before
+		 * this one removes it from the tree.
+		 */
+		huge_dalloc(ptr, false);
 		if (mremap(ptr, oldsize, newsize, MREMAP_MAYMOVE|MREMAP_FIXED,
 		    ret) == MAP_FAILED) {
 			/*
@@ -253,9 +260,8 @@ huge_ralloc(void *ptr, size_t oldsize, size_t size, size_t extra,
 			if (opt_abort)
 				abort();
 			memcpy(ret, ptr, copysize);
-			idalloc(ptr);
-		} else
-			huge_dalloc(ptr, false);
+			chunk_dealloc_mmap(ptr, oldsize);
+		}
 	} else
 #endif
 	{
@@ -295,9 +301,10 @@ huge_dalloc(void *ptr, bool unmap)
 			memset(node->addr, 0x5a, node->size);
 #endif
 #endif
-		chunk_dealloc(node->addr, node->size);
 	}
 
+	chunk_dealloc(node->addr, node->size, unmap);
+
 	base_node_dealloc(node);
 }