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| author |  David Howells <dhowells@redhat.com>
| 2021-03-29 13:53:50 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com>
| 2021-08-27 13:34:03 +0100 |
| commit | 20ec197bfa13c5b799fc9527790ea7b5374fc8f2 (patch) | |
| tree | 77224ac38587572748156ae6bf02835a74585afb /fs/fscache/internal.h | |
| parent | fscache: Fix fscache_cookie_put() to not deref after dec (diff) | |
| download | linux-20ec197bfa13c5b799fc9527790ea7b5374fc8f2.tar.gz linux-20ec197bfa13c5b799fc9527790ea7b5374fc8f2.tar.bz2 linux-20ec197bfa13c5b799fc9527790ea7b5374fc8f2.zip | |
fscache: Use refcount_t for the cookie refcount instead of atomic_t
Use refcount_t for the fscache_cookie refcount instead of atomic_t and
rename the 'usage' member to 'ref' in such cases. The tracepoints that
reference it change from showing "u=%d" to "r=%d".
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
cc: linux-cachefs@redhat.com
Link: https://lore.kernel.org/r/162431204358.2908479.8006938388213098079.stgit@warthog.procyon.org.uk/
Diffstat (limited to 'fs/fscache/internal.h')
| -rw-r--r-- | fs/fscache/internal.h | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h index 345105dbbfd1..c3e4804b8fcb 100644 --- a/fs/fscache/internal.h +++ b/fs/fscache/internal.h @@ -54,9 +54,18 @@ extern struct fscache_cookie *fscache_alloc_cookie(struct fscache_cookie *, const void *, size_t, void *, loff_t); extern struct fscache_cookie *fscache_hash_cookie(struct fscache_cookie *); +extern struct fscache_cookie *fscache_cookie_get(struct fscache_cookie *, + enum fscache_cookie_trace); extern void fscache_cookie_put(struct fscache_cookie *, enum fscache_cookie_trace); +static inline void fscache_cookie_see(struct fscache_cookie *cookie, + enum fscache_cookie_trace where) +{ + trace_fscache_cookie(cookie->debug_id, refcount_read(&cookie->ref), + where); +} + /* * fsdef.c */ @@ -286,14 +295,6 @@ static inline void fscache_raise_event(struct fscache_object *object, fscache_enqueue_object(object); } -static inline void fscache_cookie_get(struct fscache_cookie *cookie, - enum fscache_cookie_trace where) -{ - int usage = atomic_inc_return(&cookie->usage); - - trace_fscache_cookie(cookie->debug_id, usage, where); -} - /* * get an extra reference to a netfs retrieval context */ |