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| author | Davidlohr Bueso <dave@stgolabs.net> | 2017-01-03 13:43:12 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-01-14 11:14:13 +0100 |
| commit | 5376f2e722026e91cb46384bda8d8b3e9f88217c (patch) | |
| tree | c3f73f7179ff9e118e73068923119562689f31ac /kernel/locking | |
| parent | 0039962a1473f07fd5c8355bd8264be1eb87eb3e (diff) | |
| download | linux-5376f2e722026e91cb46384bda8d8b3e9f88217c.tar.gz linux-5376f2e722026e91cb46384bda8d8b3e9f88217c.tar.xz | |
drivers/tty: Compute 'current' directly
This patch effectively replaces the tsk pointer dereference
(which is obviously == current), to directly use get_current()
macro. This is to make the removal of setting foreign task
states smoother and painfully obvious. Performance win on some
archs such as x86-64 and ppc64 -- arm64 is no longer an issue.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: mark.rutland@arm.com
Link: http://lkml.kernel.org/r/1483479794-14013-3-git-send-email-dave@stgolabs.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/locking')
0 files changed, 0 insertions, 0 deletions