From: Patrick Daly <pdaly@xxxxxxxxxxxxxx> Subject: mm: cma: print region name on failure Print the name of the CMA region for convenience. This is useful information to have when cma_alloc() fails. [pdaly@xxxxxxxxxxxxxx: print the "count" variable] Link: https://lkml.kernel.org/r/20210209142414.12768-1-georgi.djakov@xxxxxxxxxx Link: https://lkml.kernel.org/r/20210208115200.20286-1-georgi.djakov@xxxxxxxxxx Signed-off-by: Patrick Daly <pdaly@xxxxxxxxxxxxxx> Signed-off-by: Georgi Djakov <georgi.djakov@xxxxxxxxxx> Acked-by: Minchan Kim <minchan@xxxxxxxxxx> Reviewed-by: David Hildenbrand <david@xxxxxxxxxx> Reviewed-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Cc: Minchan Kim <minchan@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/cma.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/mm/cma.c~mm-cma-print-region-name-on-failure +++ a/mm/cma.c @@ -500,8 +500,8 @@ struct page *cma_alloc(struct cma *cma, } if (ret && !no_warn) { - pr_err("%s: alloc failed, req-size: %zu pages, ret: %d\n", - __func__, count, ret); + pr_err("%s: %s: alloc failed, req-size: %zu pages, ret: %d\n", + __func__, cma->name, count, ret); cma_debug_show_areas(cma); } _
