mirrors/ladybird
0
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-09-14 21:42:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 9

Kernel: Purging a page should point it back to the shared zero page

Browse source 
Anonymous VM objects should never have null entries in their physical
page list. Instead, "empty" or untouched pages should refer to the
shared zero page.

Fixes #1237.
This commit is contained in:
Andreas Kling 2020-02-18 09:54:34 +01:00
commit 4b16ac0034
Notes: sideshowbarker 2024-07-19 09:15:11 +09:00
1 changed files with 1 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
Kernel/VM/PurgeableVMObject.cpp
View file

@ -76,7 +76,7 @@ int PurgeableVMObject::purge_impl()
for (size_t i = 0; i < m_physical_pages.size(); ++i) {
if (m_physical_pages[i])
++purged_page_count;
m_physical_pages[i] = nullptr;
m_physical_pages[i] = MM.shared_zero_page();
}
m_was_purged = true;