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authorByungchul Park <byungchul.park@lge.com>2017-08-07 16:12:51 +0900
committerIngo Molnar <mingo@kernel.org>2017-08-10 12:29:06 +0200
commitce07a9415f266e181a0a33033a5f7138760240a4 (patch)
tree29cb6ed4f40bd89847c0884c2178766704a68fdc /lib/parman.c
parent70911fdc9576f4eeb3986689a1c9a778a4a4aacb (diff)
downloadlinux-ce07a9415f266e181a0a33033a5f7138760240a4.tar.bz2
locking/lockdep: Make check_prev_add() able to handle external stack_trace
Currently, a space for stack_trace is pinned in check_prev_add(), that makes us not able to use external stack_trace. The simplest way to achieve it is to pass an external stack_trace as an argument. A more suitable solution is to pass a callback additionally along with a stack_trace so that callers can decide the way to save or whether to save. Actually crossrelease needs to do other than saving a stack_trace. So pass a stack_trace and callback to handle it, to check_prev_add(). Signed-off-by: Byungchul Park <byungchul.park@lge.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: akpm@linux-foundation.org Cc: boqun.feng@gmail.com Cc: kernel-team@lge.com Cc: kirill@shutemov.name Cc: npiggin@gmail.com Cc: walken@google.com Cc: willy@infradead.org Link: http://lkml.kernel.org/r/1502089981-21272-5-git-send-email-byungchul.park@lge.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'lib/parman.c')
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