From b9af36933fdf47cbbe139626e98750da72142dce Mon Sep 17 00:00:00 2001
From: Roderick Colenbrander <thunderbird2k@gmail.com>
Date: Sun, 2 Dec 2018 22:53:16 -0800
Subject: [PATCH] ntdll: Fix parsing thread_siblings bitmaps on high core count
 systems.

Linux compiled for a high number of CPU cores, the bitmap is broken
into sections of 32-bit by commas. Handle parsing this.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=45453
Signed-off-by: Roderick Colenbrander <thunderbird2k@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
---
 dlls/ntdll/nt.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/dlls/ntdll/nt.c b/dlls/ntdll/nt.c
index 0e11e0eacdf..db51a988d57 100644
--- a/dlls/ntdll/nt.c
+++ b/dlls/ntdll/nt.c
@@ -1704,13 +1704,8 @@ static NTSTATUS create_logical_proc_info(SYSTEM_LOGICAL_PROCESSOR_INFORMATION **
 
             /* Mask of logical threads sharing same physical core in kernel core numbering. */
             sprintf(name, core_info, i, "thread_siblings");
-            f = fopen(name, "r");
-            if(f)
-            {
-                fscanf(f, "%lx", &thread_mask);
-                fclose(f);
-            }
-            else thread_mask = 1<<i;
+            if(!sysfs_parse_bitmap(name, &thread_mask))
+                thread_mask = 1<<i;
             if(!logical_proc_info_add_by_id(data, dataex, &len, max_len, RelationProcessorCore, phys_core, thread_mask))
             {
                 fclose(fcpu_list);