From 3f2812afe3e85e788a66523bdc37d55eaef3ab94 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Fri, 5 Aug 2022 06:43:48 -0400 Subject: [PATCH] fscache: add tracepoint when failing cookie Signed-off-by: Jeff Layton Signed-off-by: David Howells --- fs/fscache/cookie.c | 2 ++ include/trace/events/fscache.h | 2 ++ 2 files changed, 4 insertions(+) diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c index 26a6d395737a6..451d8a077e125 100644 --- a/fs/fscache/cookie.c +++ b/fs/fscache/cookie.c @@ -263,6 +263,8 @@ void fscache_caching_failed(struct fscache_cookie *cookie) { clear_bit(FSCACHE_COOKIE_IS_CACHING, &cookie->flags); fscache_set_cookie_state(cookie, FSCACHE_COOKIE_STATE_FAILED); + trace_fscache_cookie(cookie->debug_id, refcount_read(&cookie->ref), + fscache_cookie_failed); } EXPORT_SYMBOL(fscache_caching_failed); diff --git a/include/trace/events/fscache.h b/include/trace/events/fscache.h index cb3fb337e8807..c078c48a8e6d3 100644 --- a/include/trace/events/fscache.h +++ b/include/trace/events/fscache.h @@ -49,6 +49,7 @@ enum fscache_volume_trace { enum fscache_cookie_trace { fscache_cookie_collision, fscache_cookie_discard, + fscache_cookie_failed, fscache_cookie_get_attach_object, fscache_cookie_get_end_access, fscache_cookie_get_hash_collision, @@ -131,6 +132,7 @@ enum fscache_access_trace { #define fscache_cookie_traces \ EM(fscache_cookie_collision, "*COLLIDE*") \ EM(fscache_cookie_discard, "DISCARD ") \ + EM(fscache_cookie_failed, "FAILED ") \ EM(fscache_cookie_get_attach_object, "GET attch") \ EM(fscache_cookie_get_hash_collision, "GET hcoll") \ EM(fscache_cookie_get_end_access, "GQ endac") \ -- 2.39.5