| Age | Commit message (Collapse) | Author | Files | Lines | |
|---|---|---|---|---|---|
| 2017-06-28 | locking/refcount: Create unchecked atomic_t implementation | Kees Cook | 1 | -0/+3 | |
| Many subsystems will not use refcount_t unless there is a way to build the kernel so that there is no regression in speed compared to atomic_t. This adds CONFIG_REFCOUNT_FULL to enable the full refcount_t implementation which has the validation but is slightly slower. When not enabled, refcount_t uses the basic unchecked atomic_t routines, which results in no code changes compared to just using atomic_t directly. Signed-off-by: Kees Cook <[email protected]> Acked-by: Greg Kroah-Hartman <[email protected]> Cc: Alexey Dobriyan <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: David S. Miller <[email protected]> Cc: David Windsor <[email protected]> Cc: Davidlohr Bueso <[email protected]> Cc: Elena Reshetova <[email protected]> Cc: Eric Biggers <[email protected]> Cc: Eric W. Biederman <[email protected]> Cc: Hans Liljestrand <[email protected]> Cc: James Bottomley <[email protected]> Cc: Jann Horn <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Manfred Spraul <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Rik van Riel <[email protected]> Cc: Serge E. Hallyn <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Cc: linux-arch <[email protected]> Link: http://lkml.kernel.org/r/20170621200026.GA115679@beast Signed-off-by: Ingo Molnar <[email protected]> | |||||
| 2017-05-06 | refcount: change EXPORT_SYMBOL markings | Greg Kroah-Hartman | 1 | -11/+11 | |
| Now that kref is using the refcount apis, the _GPL markings are getting exported to places that it previously wasn't. Now kref.h is GPLv2 licensed, so any non-GPL code using it better be talking to some lawyers, but changing api markings isn't considered "nice", so let's fix this up. Signed-off-by: Greg Kroah-Hartman <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> | |||||
| 2017-03-23 | locking/refcounts: Use atomic_try_cmpxchg() | Peter Zijlstra | 1 | -32/+15 | |
| Generates better code (GCC-6.2.1): text filename 1576 defconfig-build/lib/refcount.o.pre 1488 defconfig-build/lib/refcount.o.post Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Brian Gerst <[email protected]> Cc: Denys Vlasenko <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Josh Poimboeuf <[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]> | |||||
| 2017-03-13 | locking/refcount: Add refcount_t API kernel-doc comments | David Windsor | 1 | -12/+110 | |
| Signed-off-by: David Windsor <[email protected]> Acked-by: Peter Zijlstra <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Paul E. McKenney <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> | |||||
| 2017-03-01 | locking/refcounts: Change WARN() to WARN_ONCE() | Ingo Molnar | 1 | -7/+7 | |
| Linus noticed that the new refcount.h APIs used WARN(), which would turn into a dmesg DoS if it triggers frequently on some buggy driver. So make sure we only warn once. These warnings are never supposed to happen, so it's typically not a problem to lose subsequent warnings. Suggested-by: Linus Torvalds <[email protected]> Cc: Peter Zijlstra (Intel) <[email protected]> Cc: Elena Reshetova <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Link: http://lkml.kernel.org/r/CA+55aFzbYUTZ=oqZ2YgDjY0C2_n6ODhTfqj6V+m5xWmDxsuB0w@mail.gmail.com Signed-off-by: Ingo Molnar <[email protected]> | |||||
| 2017-02-24 | locking/refcounts: Out-of-line everything | Peter Zijlstra | 1 | -0/+267 | |
| Linus asked to please make this real C code. And since size then isn't an issue what so ever anymore, remove the debug knob and make all WARN()s unconditional. Suggested-by: Linus Torvalds <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Signed-off-by: Ingo Molnar <[email protected]> | |||||