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| author | Dave Airlie <airlied@redhat.com> | 2017-06-16 13:58:27 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2017-06-16 13:58:27 +1000 |
| commit | 925344ccc91d7a7fd84cab2dece1c34bbd86fd8c (patch) | |
| tree | bd4110dc5a3b70a5674b9d6d5340cc1889f5d6e8 /kernel/rcu/srcutiny.c | |
| parent | a6821698918a579e7219d706092e83f367f01ba2 (diff) | |
| parent | 32c1431eea4881a6b17bd7c639315010aeefa452 (diff) | |
BackMerge tag 'v4.12-rc5' into drm-next
Linux 4.12-rc5 for nouveau fixes
Diffstat (limited to 'kernel/rcu/srcutiny.c')
| -rw-r--r-- | kernel/rcu/srcutiny.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/kernel/rcu/srcutiny.c b/kernel/rcu/srcutiny.c index 36e1f82faed1..32798eb14853 100644 --- a/kernel/rcu/srcutiny.c +++ b/kernel/rcu/srcutiny.c @@ -97,8 +97,9 @@ EXPORT_SYMBOL_GPL(cleanup_srcu_struct); /* * Counts the new reader in the appropriate per-CPU element of the - * srcu_struct. Must be called from process context. - * Returns an index that must be passed to the matching srcu_read_unlock(). + * srcu_struct. Can be invoked from irq/bh handlers, but the matching + * __srcu_read_unlock() must be in the same handler instance. Returns an + * index that must be passed to the matching srcu_read_unlock(). */ int __srcu_read_lock(struct srcu_struct *sp) { @@ -112,7 +113,7 @@ EXPORT_SYMBOL_GPL(__srcu_read_lock); /* * Removes the count for the old reader from the appropriate element of - * the srcu_struct. Must be called from process context. + * the srcu_struct. */ void __srcu_read_unlock(struct srcu_struct *sp, int idx) { |