diff options
| author | Lorenzo Stoakes <lstoakes@gmail.com> | 2016-10-13 01:20:16 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-17 21:55:16 +0100 |
| commit | 8e50b8b07f462ab4b91bc1491b1c91bd75e4ad40 (patch) | |
| tree | 8d8e4110fcbdad29416f5fa7ad3a512a6ff8cec8 /kernel | |
| parent | 3ec22a6bce3f06aa3b8a399ea456fb1cb3792584 (diff) | |
mm: replace get_user_pages() write/force parameters with gup_flags
commit 768ae309a96103ed02eb1e111e838c87854d8b51 upstream.
This removes the 'write' and 'force' from get_user_pages() and replaces
them with 'gup_flags' to make the use of FOLL_FORCE explicit in callers
as use of this flag can result in surprising behaviour (and hence bugs)
within the mm subsystem.
Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[bwh: Backported to 4.4:
- Drop changes in rapidio, vchiq, goldfish
- Keep the "write" variable in amdgpu_ttm_tt_pin_userptr() as it's still
needed
- Also update calls from various other places that now use
get_user_pages_remote() upstream, which were updated there by commit
9beae1ea8930 "mm: replace get_user_pages_remote() write/force ..."
- Also update calls from hfi1 and ipath
- Adjust context]
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/events/uprobes.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index 7108097fa2f2..aad43c88a668 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -299,7 +299,7 @@ int uprobe_write_opcode(struct mm_struct *mm, unsigned long vaddr, retry: /* Read the page with vaddr into memory */ - ret = get_user_pages(NULL, mm, vaddr, 1, 0, 1, &old_page, &vma); + ret = get_user_pages(NULL, mm, vaddr, 1, FOLL_FORCE, &old_page, &vma); if (ret <= 0) return ret; @@ -1700,7 +1700,7 @@ static int is_trap_at_addr(struct mm_struct *mm, unsigned long vaddr) if (likely(result == 0)) goto out; - result = get_user_pages(NULL, mm, vaddr, 1, 0, 1, &page, NULL); + result = get_user_pages(NULL, mm, vaddr, 1, FOLL_FORCE, &page, NULL); if (result < 0) return result; |