diff options
| author | Greg Kroah-Hartman | 2020-06-26 16:51:14 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2020-06-26 16:51:14 +0200 |
| commit | 603ea288dc53dfabf823bf7d38e401a945309492 (patch) | |
| tree | 6260717cd4254283d71f5e671b02cb89305f768d /arch/riscv/mm/pageattr.c | |
| parent | ea0efd687b01355cd799c8643d0c636ba4859ffc (diff) | |
| parent | 48778464bb7d346b47157d21ffde2af6b2d39110 (diff) | |
Merge 5.8-rc2 into usb-linus
Felipe has based his patches on that tag, so update my usb-linus branch
to it as well so that I can pull his patches in here easier.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/riscv/mm/pageattr.c')
| -rw-r--r-- | arch/riscv/mm/pageattr.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/riscv/mm/pageattr.c b/arch/riscv/mm/pageattr.c index ec2c70f84994..289a9a5ea5b5 100644 --- a/arch/riscv/mm/pageattr.c +++ b/arch/riscv/mm/pageattr.c @@ -151,6 +151,7 @@ int set_memory_nx(unsigned long addr, int numpages) int set_direct_map_invalid_noflush(struct page *page) { + int ret; unsigned long start = (unsigned long)page_address(page); unsigned long end = start + PAGE_SIZE; struct pageattr_masks masks = { @@ -158,11 +159,16 @@ int set_direct_map_invalid_noflush(struct page *page) .clear_mask = __pgprot(_PAGE_PRESENT) }; - return walk_page_range(&init_mm, start, end, &pageattr_ops, &masks); + mmap_read_lock(&init_mm); + ret = walk_page_range(&init_mm, start, end, &pageattr_ops, &masks); + mmap_read_unlock(&init_mm); + + return ret; } int set_direct_map_default_noflush(struct page *page) { + int ret; unsigned long start = (unsigned long)page_address(page); unsigned long end = start + PAGE_SIZE; struct pageattr_masks masks = { @@ -170,7 +176,11 @@ int set_direct_map_default_noflush(struct page *page) .clear_mask = __pgprot(0) }; - return walk_page_range(&init_mm, start, end, &pageattr_ops, &masks); + mmap_read_lock(&init_mm); + ret = walk_page_range(&init_mm, start, end, &pageattr_ops, &masks); + mmap_read_unlock(&init_mm); + + return ret; } void __kernel_map_pages(struct page *page, int numpages, int enable) |