diff options
| author | J. R. Okajima | 2017-02-02 17:38:17 +0100 |
|---|---|---|
| committer | Ingo Molnar | 2017-03-16 09:57:07 +0100 |
| commit | 6419c4af777a773a45a1b1af735de0fcd9a7dcc7 (patch) | |
| tree | 0f7d44f45b63043b15904ac5f755bbb0abddb7bc /mm/percpu.c | |
| parent | locking/lockdep: Factor out the validate_held_lock() helper function (diff) | |
| download | kernel-qcow2-linux-6419c4af777a773a45a1b1af735de0fcd9a7dcc7.tar.gz kernel-qcow2-linux-6419c4af777a773a45a1b1af735de0fcd9a7dcc7.tar.xz kernel-qcow2-linux-6419c4af777a773a45a1b1af735de0fcd9a7dcc7.zip | |
locking/lockdep: Add new check to lock_downgrade()
Commit:
f8319483f57f ("locking/lockdep: Provide a type check for lock_is_held")
didn't fully cover rwsems as downgrade_write() was left out.
Introduce lock_downgrade() and use it to add new checks.
See-also: http://marc.info/?l=linux-kernel&m=148581164003149&w=2
Originally-written-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.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>
Link: http://lkml.kernel.org/r/1486053497-9948-3-git-send-email-hooanon05g@gmail.com
[ Rewrote the changelog. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/percpu.c')
0 files changed, 0 insertions, 0 deletions