diff options
| author | Peter Xu <peterx@redhat.com> | 2020-08-11 18:39:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-12 10:58:04 -0700 |
| commit | 64019a2e467a288a16b65ab55ddcbf58c1b00187 (patch) | |
| tree | 6c4272bf0188188b63023858edf85786a8f54817 /kernel | |
| parent | a2beb5f1efede6924a4258462a5660572e6ca864 (diff) | |
| download | lwn-64019a2e467a288a16b65ab55ddcbf58c1b00187.tar.gz lwn-64019a2e467a288a16b65ab55ddcbf58c1b00187.zip | |
mm/gup: remove task_struct pointer for all gup code
After the cleanup of page fault accounting, gup does not need to pass
task_struct around any more. Remove that parameter in the whole gup
stack.
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Link: http://lkml.kernel.org/r/20200707225021.200906-26-peterx@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/events/uprobes.c | 6 | ||||
| -rw-r--r-- | kernel/futex.c | 2 |
2 files changed, 4 insertions, 4 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index 49047d479c57..649fd53dc9ad 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -376,7 +376,7 @@ __update_ref_ctr(struct mm_struct *mm, unsigned long vaddr, short d) if (!vaddr || !d) return -EINVAL; - ret = get_user_pages_remote(NULL, mm, vaddr, 1, + ret = get_user_pages_remote(mm, vaddr, 1, FOLL_WRITE, &page, &vma, NULL); if (unlikely(ret <= 0)) { /* @@ -477,7 +477,7 @@ retry: if (is_register) gup_flags |= FOLL_SPLIT_PMD; /* Read the page with vaddr into memory */ - ret = get_user_pages_remote(NULL, mm, vaddr, 1, gup_flags, + ret = get_user_pages_remote(mm, vaddr, 1, gup_flags, &old_page, &vma, NULL); if (ret <= 0) return ret; @@ -2029,7 +2029,7 @@ static int is_trap_at_addr(struct mm_struct *mm, unsigned long vaddr) * but we treat this as a 'remote' access since it is * essentially a kernel access to the memory. */ - result = get_user_pages_remote(NULL, mm, vaddr, 1, FOLL_FORCE, &page, + result = get_user_pages_remote(mm, vaddr, 1, FOLL_FORCE, &page, NULL, NULL); if (result < 0) return result; diff --git a/kernel/futex.c b/kernel/futex.c index 83404124b77b..61e8153e6c76 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -678,7 +678,7 @@ static int fault_in_user_writeable(u32 __user *uaddr) int ret; mmap_read_lock(mm); - ret = fixup_user_fault(current, mm, (unsigned long)uaddr, + ret = fixup_user_fault(mm, (unsigned long)uaddr, FAULT_FLAG_WRITE, NULL); mmap_read_unlock(mm); |