leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mm: cma: use pr_err_ratelimited for CMA warning

Browse Source 
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>
This commit is contained in:
Baolin Wang 2021-05-04 18:37:22 -07:00 committed by Linus Torvalds
parent bbb269206f
commit 63f83b31f4
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
mm/cma.c
View File

@ -500,8 +500,8 @@ 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);
}