From 1552256b815709d53e0abbed2285678c8d50a645 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Mon, 30 Mar 2020 14:30:41 +0200
Subject: drm/mm: revert "Break long searches in fragmented address spaces"
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Git-commit: d8a26d8fc37c5b8b9e95f2fa194f287cf8cab3f4
Patch-mainline: v5.7-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
This reverts commit 7be1b9b8e9d1e9ef0342d2e001f44eec4030aa4d.
The drm_mm is supposed to work in atomic context, so calling schedule()
or in this case cond_resched() is illegal.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/359278/
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/drm_mm.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
index bc6e208949e8..8981abe8b7c9 100644
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -45,7 +45,6 @@
#include <linux/export.h>
#include <linux/interval_tree_generic.h>
#include <linux/seq_file.h>
-#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/stacktrace.h>
@@ -367,11 +366,6 @@ next_hole(struct drm_mm *mm,
struct drm_mm_node *node,
enum drm_mm_insert_mode mode)
{
- /* Searching is slow; check if we ran out of time/patience */
- cond_resched();
- if (fatal_signal_pending(current))
- return NULL;
-
switch (mode) {
default:
case DRM_MM_INSERT_BEST:
@@ -563,7 +557,7 @@ int drm_mm_insert_node_in_range(struct drm_mm * const mm,
return 0;
}
- return signal_pending(current) ? -ERESTARTSYS : -ENOSPC;
+ return -ENOSPC;
}
EXPORT_SYMBOL(drm_mm_insert_node_in_range);
--
2.28.0