The patch titled
Subject: proc: avoid unused variable warning in pagemap_pmd_range()
has been added to the -mm tree. Its filename is
proc-avoid-unused-variable-warning-in-pagemap_pmd_range.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/proc-avoid-unused-variable-warning-in-pagemap_pmd_range.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/proc-avoid-unused-variable-warning-in-pagemap_pmd_range.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Nathan Chancellor <nathan@xxxxxxxxxx>
Subject: proc: avoid unused variable warning in pagemap_pmd_range()
When building with CONFIG_TRANSPARENT_HUGEPAGE=n, there is a warning about
migration being unused:
fs/proc/task_mmu.c:1444:7: warning: unused variable 'migration' [-Wunused-variable]
bool migration = false;
^
1 warning generated.
Move the ifdef preprocessor directive up to include migration so it is
only included in the file when it is used.
Link: https://lkml.kernel.org/r/20220207171049.1102239-1-nathan@xxxxxxxxxx
Signed-off-by: Nathan Chancellor <nathan@xxxxxxxxxx>
Cc: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/task_mmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/proc/task_mmu.c~proc-avoid-unused-variable-warning-in-pagemap_pmd_range
+++ a/fs/proc/task_mmu.c
@@ -1441,9 +1441,9 @@ static int pagemap_pmd_range(pmd_t *pmdp
spinlock_t *ptl;
pte_t *pte, *orig_pte;
int err = 0;
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
bool migration = false;
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
ptl = pmd_trans_huge_lock(pmdp, vma);
if (ptl) {
u64 flags = 0, frame = 0;
_
Patches currently in -mm which might be from nathan@xxxxxxxxxx are
proc-avoid-unused-variable-warning-in-pagemap_pmd_range.patch
