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| author | Baolin Wang <baolin.wang@linux.alibaba.com> | 2021-04-21 14:44:11 +1000 |
|---|---|---|
| committer | Seung-Woo Kim <sw0312.kim@samsung.com> | 2021-08-19 02:48:56 +0000 |
| commit | e97da7ed64f52e05db52b50523e05db77970d312 (patch) | |
| tree | 3c63abc36e9cbebfb71b25a2981aad79ccb70637 /mm | |
| parent | 72e99a1c8712c4ac92ddbb3b17c1074ebfcbb49e (diff) | |
| download | linux-rpi-e97da7ed64f52e05db52b50523e05db77970d312.tar.gz linux-rpi-e97da7ed64f52e05db52b50523e05db77970d312.tar.bz2 linux-rpi-e97da7ed64f52e05db52b50523e05db77970d312.zip | |
mm: cma: use pr_err_ratelimited for CMA warning
If we did not reserve extra CMA memory, the log buffer can be easily
filled up by CMA failure warning when the devices calling
dmam_alloc_coherent() to alloc DMA memory. Thus we can use
pr_err_ratelimited() instead to reduce the duplicate CMA warning.
Link: https://lkml.kernel.org/r/ce2251ef49e1727a9a40531d1996660b05462bd2.1615279825.git.baolin.wang@linux.alibaba.com
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Origin: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=63f83b31f4f36d933e13bd8b9a25d6d9a0cf89dd
Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
Change-Id: I24e03acb8288fc60e22dddfd409d56b50f3ac12f
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/cma.c | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -486,8 +486,8 @@ struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align, } if (ret && !no_warn) { - pr_err("%s: %s: alloc failed, req-size: %zu pages, ret: %d\n", - __func__, cma->name, count, ret); + pr_err_ratelimited("%s: %s: alloc failed, req-size: %zu pages, ret: %d\n", + __func__, cma->name, count, ret); cma_debug_show_areas(cma); } |