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lib/ref_tracker: add printing to memory buffer

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Similar to stack_(depot|trace)_snprint the patch
adds helper to printing stats to memory buffer.
It will be helpful in case of debugfs.

Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Andrzej Hajda
2023-06-02 12:21:35 +02:00
committed by Jakub Kicinski
parent b6d7c0eb2d
commit 227c6c8323
2 changed files with 56 additions and 8 deletions
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8
include/linux/ref_tracker.h
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@@ -46,6 +46,8 @@ void ref_tracker_dir_print_locked(struct ref_tracker_dir *dir,
void ref_tracker_dir_print(struct ref_tracker_dir *dir,
unsigned int display_limit);
int ref_tracker_dir_snprint(struct ref_tracker_dir *dir, char *buf, size_t size);
int ref_tracker_alloc(struct ref_tracker_dir *dir,
struct ref_tracker **trackerp, gfp_t gfp);
@@ -74,6 +76,12 @@ static inline void ref_tracker_dir_print(struct ref_tracker_dir *dir,
{
}
static inline int ref_tracker_dir_snprint(struct ref_tracker_dir *dir,
char *buf, size_t size)
{
return 0;
}
static inline int ref_tracker_alloc(struct ref_tracker_dir *dir,
struct ref_tracker **trackerp,
gfp_t gfp)