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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-28 00:49:12 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-28 00:49:12 +0200 |
| commit | 9db4f36e82c2394c958d8e42a498fb664684bc22 (patch) | |
| tree | 6b064b9f2b6c593639004c2a8a784a861dbca546 /mm/memory_hotplug.c | |
| parent | Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff) | |
| download | linux-9db4f36e82c2394c958d8e42a498fb664684bc22.tar.xz linux-9db4f36e82c2394c958d8e42a498fb664684bc22.zip | |
mm: remove unused variable in memory hotplug
When I removed the per-zone bitlock hashed waitqueues in commit
9dcb8b685fc3 ("mm: remove per-zone hashtable of bitlock waitqueues"), I
removed all the magic hotplug memory initialization of said waitqueues
too.
But when I actually _tested_ the resulting build, I stupidly assumed
that "allmodconfig" would enable memory hotplug. And it doesn't,
because it enables KASAN instead, which then disables hotplug memory
support.
As a result, my build test of the per-zone waitqueues was totally
broken, and I didn't notice that the compiler warns about the now unused
iterator variable 'i'.
I guess I should be happy that that seems to be the worst breakage from
my clearly horribly failed test coverage.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory_hotplug.c')
| -rw-r--r-- | mm/memory_hotplug.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index b18dab401be6..cad4b9125695 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -2117,7 +2117,6 @@ void try_offline_node(int nid) unsigned long start_pfn = pgdat->node_start_pfn; unsigned long end_pfn = start_pfn + pgdat->node_spanned_pages; unsigned long pfn; - int i; for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) { unsigned long section_nr = pfn_to_section_nr(pfn); |