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authorArnd Bergmann <arnd@arndb.de>2011-01-25 22:52:22 +0100
committerArnd Bergmann <arnd@arndb.de>2011-03-05 10:56:00 +0100
commit4ba8216cd90560bc402f52076f64d8546e8aefcb (patch)
treef64c272085c833b36755b5552a726f21eed3d142 /include/linux/hardirq.h
parentae7eb8979ccfa5e9e888101b9c940f20bd0f4115 (diff)
downloadop-kernel-dev-4ba8216cd90560bc402f52076f64d8546e8aefcb.zip
op-kernel-dev-4ba8216cd90560bc402f52076f64d8546e8aefcb.tar.gz
BKL: That's all, folks
This removes the implementation of the big kernel lock, at last. A lot of people have worked on this in the past, I so the credit for this patch should be with everyone who participated in the hunt. The names on the Cc list are the people that were the most active in this, according to the recorded git history, in alphabetical order. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Alan Cox <alan@linux.intel.com> Cc: Alessio Igor Bogani <abogani@texware.it> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrew Hendry <andrew.hendry@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Christoph Hellwig <hch@infradead.org> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Hans Verkuil <hverkuil@xs4all.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Jan Blunck <jblunck@infradead.org> Cc: John Kacur <jkacur@redhat.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Oliver Neukum <oliver@neukum.org> Cc: Paul Menage <menage@google.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/hardirq.h')
-rw-r--r--include/linux/hardirq.h9
1 files changed, 1 insertions, 8 deletions
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index 32f9fd6..ba36217 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -93,13 +93,6 @@
*/
#define in_nmi() (preempt_count() & NMI_MASK)
-#if defined(CONFIG_PREEMPT) && defined(CONFIG_BKL)
-# include <linux/sched.h>
-# define PREEMPT_INATOMIC_BASE (current->lock_depth >= 0)
-#else
-# define PREEMPT_INATOMIC_BASE 0
-#endif
-
#if defined(CONFIG_PREEMPT)
# define PREEMPT_CHECK_OFFSET 1
#else
@@ -113,7 +106,7 @@
* used in the general case to determine whether sleeping is possible.
* Do not use in_atomic() in driver code.
*/
-#define in_atomic() ((preempt_count() & ~PREEMPT_ACTIVE) != PREEMPT_INATOMIC_BASE)
+#define in_atomic() ((preempt_count() & ~PREEMPT_ACTIVE) != 0)
/*
* Check whether we were atomic before we did preempt_disable():
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