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fscache fixes

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Merge tag 'fscache-fixes-20220809' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

Pull fscache updates from David Howells:

 - Fix a cookie access ref leak if a cookie is invalidated a second time
   before the first invalidation is actually processed.

 - Add a tracepoint to log cookie lookup failure

* tag 'fscache-fixes-20220809' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  fscache: add tracepoint when failing cookie
  fscache: don't leak cookie access refs if invalidation is in progress or failed
This commit is contained in:
Linus Torvalds 2022-08-09 10:11:56 -07:00
commit 15205c2829
2 changed files with 9 additions and 2 deletions
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2
include/trace/events/fscache.h
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@ -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") \