[PATCH 30/31] nommu: use flush_icache_user_range in brk and mmap
From: Christoph Hellwig <hch@lst.de>
Date: 2020-05-10 07:57:18
Also in:
linux-alpha, linux-arch, linux-arm-kernel, linux-fsdevel, linux-m68k, linux-mips, linux-mm, linux-riscv, linux-sh, linux-um, lkml, sparclinux
Subsystem:
memory management, memory mapping, the rest · Maintainers:
Andrew Morton, Liam R. Howlett, Lorenzo Stoakes, Linus Torvalds
These obviously operate on user addresses. Signed-off-by: Christoph Hellwig <hch@lst.de> --- mm/nommu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/nommu.c b/mm/nommu.c
index 318df4e236c99..aed7acaed2383 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c@@ -443,7 +443,7 @@ SYSCALL_DEFINE1(brk, unsigned long, brk) /* * Ok, looks good - let it rip. */ - flush_icache_range(mm->brk, brk); + flush_icache_user_range(mm->brk, brk); return mm->brk = brk; }
@@ -1287,7 +1287,7 @@ unsigned long do_mmap(struct file *file, /* we flush the region from the icache only when the first executable * mapping of it is made */ if (vma->vm_flags & VM_EXEC && !region->vm_icache_flushed) { - flush_icache_range(region->vm_start, region->vm_end); + flush_icache_user_range(region->vm_start, region->vm_end); region->vm_icache_flushed = true; }
--
2.26.2