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fscache: add tracepoint when failing cookie

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Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
Jeff Layton 2022-08-05 06:43:48 -04:00 committed by David Howells
parent fb24771faf
commit 1a1e3aca9d
2 changed files with 4 additions and 0 deletions
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2
fs/fscache/cookie.c
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@ -263,6 +263,8 @@ void fscache_caching_failed(struct fscache_cookie *cookie)
{ {
clear_bit(FSCACHE_COOKIE_IS_CACHING, &cookie->flags); clear_bit(FSCACHE_COOKIE_IS_CACHING, &cookie->flags);
fscache_set_cookie_state(cookie, FSCACHE_COOKIE_STATE_FAILED); 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); EXPORT_SYMBOL(fscache_caching_failed);

2
include/trace/events/fscache.h
View File

@ -49,6 +49,7 @@ enum fscache_volume_trace {
enum fscache_cookie_trace { enum fscache_cookie_trace {
fscache_cookie_collision, fscache_cookie_collision,
fscache_cookie_discard, fscache_cookie_discard,
fscache_cookie_failed,
fscache_cookie_get_attach_object, fscache_cookie_get_attach_object,
fscache_cookie_get_end_access, fscache_cookie_get_end_access,
fscache_cookie_get_hash_collision, fscache_cookie_get_hash_collision,
@ -131,6 +132,7 @@ enum fscache_access_trace {
#define fscache_cookie_traces \ #define fscache_cookie_traces \
EM(fscache_cookie_collision, "*COLLIDE*") \ EM(fscache_cookie_collision, "*COLLIDE*") \
EM(fscache_cookie_discard, "DISCARD ") \ EM(fscache_cookie_discard, "DISCARD ") \
EM(fscache_cookie_failed, "FAILED ") \
EM(fscache_cookie_get_attach_object, "GET attch") \ EM(fscache_cookie_get_attach_object, "GET attch") \
EM(fscache_cookie_get_hash_collision, "GET hcoll") \ EM(fscache_cookie_get_hash_collision, "GET hcoll") \
EM(fscache_cookie_get_end_access, "GQ endac") \ EM(fscache_cookie_get_end_access, "GQ endac") \