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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:39:57 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:39:57 +0000
commitdc50eab76b709d68175a358d6e23a5a3890764d3 (patch)
treec754d0390db060af0213ff994f0ac310e4cfd6e9 /arch/arc/mm/tlb.c
parentAdding debian version 6.6.15-2. (diff)
downloadlinux-dc50eab76b709d68175a358d6e23a5a3890764d3.tar.xz
linux-dc50eab76b709d68175a358d6e23a5a3890764d3.zip
Merging upstream version 6.7.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arc/mm/tlb.c')
-rw-r--r--arch/arc/mm/tlb.c16
1 files changed, 5 insertions, 11 deletions
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index e536b2dcd4..ad702b49ae 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -478,21 +478,15 @@ void update_mmu_cache_range(struct vm_fault *vmf, struct vm_area_struct *vma,
create_tlb(vma, vaddr, ptep);
- if (page == ZERO_PAGE(0)) {
+ if (page == ZERO_PAGE(0))
return;
- }
/*
- * Exec page : Independent of aliasing/page-color considerations,
- * since icache doesn't snoop dcache on ARC, any dirty
- * K-mapping of a code page needs to be wback+inv so that
- * icache fetch by userspace sees code correctly.
- * !EXEC page: If K-mapping is NOT congruent to U-mapping, flush it
- * so userspace sees the right data.
- * (Avoids the flush for Non-exec + congruent mapping case)
+ * For executable pages, since icache doesn't snoop dcache, any
+ * dirty K-mapping of a code page needs to be wback+inv so that
+ * icache fetch by userspace sees code correctly.
*/
- if ((vma->vm_flags & VM_EXEC) ||
- addr_not_cache_congruent(paddr, vaddr)) {
+ if (vma->vm_flags & VM_EXEC) {
struct folio *folio = page_folio(page);
int dirty = !test_and_set_bit(PG_dc_clean, &folio->flags);
if (dirty) {