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mm: gup: remove set but unused local variable major

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Patch series "Cleanups and fixup for gup".

This series contains cleanups to remove unneeded variable, useless BUG_ON
and use helper to improve readability.  Also we fix a potential pgmap
refcnt leak.  More details can be found in the respective changelogs.

This patch (of 5):

Since commit a2beb5f1efed ("mm: clean up the last pieces of page fault
accountings"), the local variable major is unused.  Remove it.

Link: https://lkml.kernel.org/r/20210807093620.21347-1-linmiaohe@huawei.com
Link: https://lkml.kernel.org/r/20210807093620.21347-2-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Miaohe Lin 2021-09-02 14:53:33 -07:00 committed by Linus Torvalds
parent 6de522d166
commit 8fed2f3cd6
1 changed files with 1 additions and 2 deletions
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3
mm/gup.c
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@ -1276,7 +1276,7 @@ int fixup_user_fault(struct mm_struct *mm,
bool *unlocked)
{
struct vm_area_struct *vma;
vm_fault_t ret, major = 0;
vm_fault_t ret;
address = untagged_addr(address);
@ -1296,7 +1296,6 @@ retry:
return -EINTR;
ret = handle_mm_fault(vma, address, fault_flags, NULL);
major |= ret & VM_FAULT_MAJOR;
if (ret & VM_FAULT_ERROR) {
int err = vm_fault_to_errno(ret, 0);