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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-02 15:21:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-02 15:21:48 -0700 |
| commit | ac438771ccb4479528594c7e19f2c39cf1814a86 (patch) | |
| tree | d0579433dc73c12d188c40494040c45d85660dea /lib | |
| parent | Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm (diff) | |
| parent | percpu: update copyright emails to dennis@kernel.org (diff) | |
| download | wireguard-linux-ac438771ccb4479528594c7e19f2c39cf1814a86.tar.xz wireguard-linux-ac438771ccb4479528594c7e19f2c39cf1814a86.zip | |
Merge branch 'for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu
Pull percpu updates from Dennis Zhou:
"This is just a few documentation fixes for percpu refcount and bitmap
helpers that went in v5.6, and moving my emails to all be at korg"
* 'for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu:
percpu: update copyright emails to dennis@kernel.org
include/bitmap.h: add new functions to documentation
include/bitmap.h: add missing parameter in docs
percpu_ref: Fix comment regarding percpu_ref_init flags
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/percpu-refcount.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/percpu-refcount.c b/lib/percpu-refcount.c index 4f6c6ebbbbde..8d092609928e 100644 --- a/lib/percpu-refcount.c +++ b/lib/percpu-refcount.c @@ -50,9 +50,10 @@ static unsigned long __percpu *percpu_count_ptr(struct percpu_ref *ref) * @flags: PERCPU_REF_INIT_* flags * @gfp: allocation mask to use * - * Initializes @ref. If @flags is zero, @ref starts in percpu mode with a - * refcount of 1; analagous to atomic_long_set(ref, 1). See the - * definitions of PERCPU_REF_INIT_* flags for flag behaviors. + * Initializes @ref. @ref starts out in percpu mode with a refcount of 1 unless + * @flags contains PERCPU_REF_INIT_ATOMIC or PERCPU_REF_INIT_DEAD. These flags + * change the start state to atomic with the latter setting the initial refcount + * to 0. See the definitions of PERCPU_REF_INIT_* flags for flag behaviors. * * Note that @release must not sleep - it may potentially be called from RCU * callback context by percpu_ref_kill(). |