Address code review

corona10 · corona10 · commit 290864a38afe · 2025-12-06T08:01:35.000+09:00
diff --git a/Include/internal/pycore_mmap.h b/Include/internal/pycore_mmap.h
@@ -26,10 +26,11 @@ _PyAnnotateMemoryMap(void *addr, size_t size, const char *name)
     }
 #endif
     assert(strlen(name) < 80);
+    int old_errno = errno;
     prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, (unsigned long)(addr), size, name);
     /* Ignore errno from prctl */
     /* See: https://bugzilla.redhat.com/show_bug.cgi?id=2302746 */
-    errno = 0;
+    errno = old_errno;
 }
 #else
 static inline void

Original file line number	Diff line number	Diff line change
`@@ -26,10 +26,11 @@ _PyAnnotateMemoryMap(void addr, size_t size, const char name)`
`26`	`26`	`}`
`27`	`27`	`#endif`
`28`	`28`	`assert(strlen(name) < 80);`
	`29`	`+ int old_errno = errno;`
`29`	`30`	`prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, (unsigned long)(addr), size, name);`
`30`	`31`	`/* Ignore errno from prctl */`
`31`	`32`	`/* See: https://bugzilla.redhat.com/show_bug.cgi?id=2302746 */`
`32`		`- errno = 0;`
	`33`	`+ errno = old_errno;`
`33`	`34`	`}`
`34`	`35`	`#else`
`35`	`36`	`static inline void`