fscache: Add more tracepoints

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Add more tracepoints to fscache, including:

 (*) fscache_page - Tracks netfs pages known to fscache.

 (*) fscache_check_page - Tracks the netfs querying whether a page is
     pending storage.

 (*) fscache_wake_cookie - Tracks cookies being woken up after a page
     completes/aborts storage in the cache.

 (*) fscache_op - Tracks operations being initialised.

 (*) fscache_wrote_page - Tracks return of the backend write_page op.

 (*) fscache_gang_lookup - Tracks lookup of pages to be stored in the write
     operation.

Signed-off-by: David Howells <dhowells@redhat.com>

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This commit is contained in:

David Howells 2018-04-04 13:41:27 +01:00

parent a18feb5576

commit 08c2e3d087

6 changed files with 330 additions and 8 deletions

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3

include/linux/fscache-cache.h

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252

include/trace/events/fscache.h

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