From 1391efa952e8b22088f8626fc63ade26767b92d6 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 6 May 2021 18:04:51 -0700 Subject: gcov: use kvmalloc() Using vmalloc() in gcov is really quite wasteful, many of the objects allocated are really small (e.g. I've seen 24 bytes.) Use kvmalloc() to automatically pick the better of kmalloc() or vmalloc() depending on the size. [johannes.berg@intel.com: fix clang-11+ build] Link: https://lkml.kernel.org/r/20210412214210.6e1ecca9cdc5.I24459763acf0591d5e6b31c7e3a59890d802f79c@changeid Link: https://lkml.kernel.org/r/20210315235453.799e7a9d627d.I741d0db096c6f312910f7f1bcdfde0fda20801a4@changeid Signed-off-by: Johannes Berg Reviewed-by: Nick Desaulniers Tested-by: Nick Desaulniers Cc: Peter Oberparleiter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/gcov/fs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'kernel/gcov/fs.c') diff --git a/kernel/gcov/fs.c b/kernel/gcov/fs.c index 40ea81c0475b..5c3086cad8f9 100644 --- a/kernel/gcov/fs.c +++ b/kernel/gcov/fs.c @@ -26,7 +26,7 @@ #include #include #include -#include +#include #include "gcov.h" /** @@ -116,7 +116,7 @@ static struct gcov_iterator *gcov_iter_new(struct gcov_info *info) /* Dry-run to get the actual buffer size. */ size = convert_to_gcda(NULL, info); - iter = vmalloc(struct_size(iter, buffer, size)); + iter = kvmalloc(struct_size(iter, buffer, size), GFP_KERNEL); if (!iter) return NULL; @@ -134,7 +134,7 @@ static struct gcov_iterator *gcov_iter_new(struct gcov_info *info) */ static void gcov_iter_free(struct gcov_iterator *iter) { - vfree(iter); + kvfree(iter); } /** -- cgit v1.2.3