summaryrefslogtreecommitdiff
path: root/mm/huge_memory.c
diff options
context:
space:
mode:
authorAndrew Morton <akpm@linux-foundation.org>2022-12-01 01:58:42 +0300
committerAndrew Morton <akpm@linux-foundation.org>2022-12-01 01:58:42 +0300
commita38358c934f66bdff12db762998b88038d7bc44b (patch)
tree72747f34cde18a9e2188b6bccb865c14d423b986 /mm/huge_memory.c
parentea0ffd0c08d0fef1f6e93eb07badbeeabf6b43d6 (diff)
parent1d351f1894342c378b96bb9ed89f8debb1e24e9f (diff)
downloadlinux-a38358c934f66bdff12db762998b88038d7bc44b.tar.xz
Merge branch 'mm-hotfixes-stable' into mm-stable
Diffstat (limited to 'mm/huge_memory.c')
-rw-r--r--mm/huge_memory.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index a00e9c335e69..b26998d1845f 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2206,9 +2206,12 @@ static void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd,
entry = pte_wrprotect(entry);
if (!young)
entry = pte_mkold(entry);
- /* NOTE: this may set soft-dirty too on some archs */
- if (dirty)
- entry = pte_mkdirty(entry);
+ /*
+ * NOTE: we don't do pte_mkdirty when dirty==true
+ * because it breaks sparc64 which can sigsegv
+ * random process. Need to revisit when we figure
+ * out what is special with sparc64.
+ */
if (soft_dirty)
entry = pte_mksoft_dirty(entry);
if (uffd_wp)