diff options
| author | Peter Zijlstra <[email protected]> | 2016-11-14 16:29:48 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2017-01-14 10:37:18 +0000 |
| commit | 2c935bc57221cc2edc787c72ea0e2d30cdcd3d5e (patch) | |
| tree | 4ccb975ac9142887b4e7e7bf1c0cca5c53d4cf99 /net/sunrpc/cache.c | |
| parent | locking/atomic, kref: Add KREF_INIT() (diff) | |
| download | kernel-2c935bc57221cc2edc787c72ea0e2d30cdcd3d5e.tar.gz kernel-2c935bc57221cc2edc787c72ea0e2d30cdcd3d5e.zip | |
locking/atomic, kref: Add kref_read()
Since we need to change the implementation, stop exposing internals.
Provide kref_read() to read the current reference count; typically
used for debug messages.
Kills two anti-patterns:
atomic_read(&kref->refcount)
kref->refcount.counter
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Paul E. McKenney <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'net/sunrpc/cache.c')
| -rw-r--r-- | net/sunrpc/cache.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c index 8147e8d56eb2..f39e3e11f9aa 100644 --- a/net/sunrpc/cache.c +++ b/net/sunrpc/cache.c @@ -1358,7 +1358,7 @@ static int c_show(struct seq_file *m, void *p) ifdebug(CACHE) seq_printf(m, "# expiry=%ld refcnt=%d flags=%lx\n", convert_to_wallclock(cp->expiry_time), - atomic_read(&cp->ref.refcount), cp->flags); + kref_read(&cp->ref), cp->flags); cache_get(cp); if (cache_check(cd, cp, NULL)) /* cache_check does a cache_put on failure */ |