From: Petr Mladek <pmladek@suse.com>
To: Jason Wessel <jason.wessel@windriver.com>
Cc: Daniel Thompson <daniel.thompson@linaro.org>,
Peter Zijlstra <peterz@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
linux-kernel@vger.kernel.org, Petr Mladek <pmladek@suse.com>
Subject: [PATCH v2 0/3] kdb: Fix locking in vkdb_printf()
Date: Tue, 29 Nov 2016 10:37:53 +0100 [thread overview]
Message-ID: <1480412276-16690-1-git-send-email-pmladek@suse.com> (raw)
This patchset fixes some races that I noticed when looked
over the kdbd_printf() code. v2 is based on the feedback
from Daniel Thompson and Sergey Senozhatsky.
Changes agaist v1:
+ Completely remove kdb_event (Daniel)
+ Avoid using smp_processor_id() (Sergey)
+ Better describe the whole situation in 3rd patch (Daniel)
Petr Mladek (3):
kdb: Remove unused kdb_event handling
kdb: Properly synchronize vkdb_printf() calls with other CPUs
kdb: Call vkdb_printf() from vprintk_default() only when wanted
include/linux/kdb.h | 2 +-
kernel/debug/kdb/kdb_io.c | 37 +++++++++++++------------------------
kernel/debug/kdb/kdb_main.c | 1 -
kernel/debug/kdb/kdb_private.h | 1 -
kernel/printk/printk.c | 3 ++-
5 files changed, 16 insertions(+), 28 deletions(-)
--
1.8.5.6
next reply other threads:[~2016-11-29 9:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-29 9:37 Petr Mladek [this message]
2016-11-29 9:37 ` [PATCH v2 1/3] kdb: Remove unused kdb_event handling Petr Mladek
2016-11-29 9:37 ` [PATCH v2 2/3] kdb: Properly synchronize vkdb_printf() calls with other CPUs Petr Mladek
2016-11-29 9:37 ` [PATCH v2 3/3] kdb: Call vkdb_printf() from vprintk_default() only when wanted Petr Mladek
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