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| author | Michal Nazarewicz <mina86@mina86.com> | 2014-11-13 15:19:27 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-11-13 16:17:05 -0800 |
| commit | dae803e165a11bc88ca8dbc07a11077caf97bbcb (patch) | |
| tree | 88d384e3f07e1c5f78208482cbc1164edc5bf0b8 /mm | |
| parent | 95069ac8da4975120ba76e968fc72948582c3509 (diff) | |
| download | linux-dae803e165a11bc88ca8dbc07a11077caf97bbcb.tar.gz linux-dae803e165a11bc88ca8dbc07a11077caf97bbcb.tar.bz2 linux-dae803e165a11bc88ca8dbc07a11077caf97bbcb.zip | |
mm: alloc_contig_range: demote pages busy message from warn to info
Having test_pages_isolated failure message as a warning confuses users
into thinking that it is more serious than it really is. In reality, if
called via CMA, allocation will be retried so a single
test_pages_isolated failure does not prevent allocation from succeeding.
Demote the warning message to an info message and reformat it such that
the text "failed" does not appear and instead a less worrying "PFNS
busy" is used.
This message is trivially reproducible on a 10GB x86 machine on 3.16.y
kernels configured with CONFIG_DMA_CMA.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/page_alloc.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index fd11b913779e..181dc593962b 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -6397,13 +6397,12 @@ int alloc_contig_range(unsigned long start, unsigned long end, /* Make sure the range is really isolated. */ if (test_pages_isolated(outer_start, end, false)) { - pr_warn("alloc_contig_range test_pages_isolated(%lx, %lx) failed\n", - outer_start, end); + pr_info("%s: [%lx, %lx) PFNs busy\n", + __func__, outer_start, end); ret = -EBUSY; goto done; } - /* Grab isolated pages from freelists. */ outer_end = isolate_freepages_range(&cc, outer_start, end); if (!outer_end) { |