cifs: Ratelimit kernel log messages

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commit ec7147a99e upstream.

Under some conditions, CIFS can repeatedly call the cifs_dbg() logging
wrapper. If done rapidly enough, the console framebuffer can softlockup
or "rcu_sched self-detected stall". Apply the built-in log ratelimiters
to prevent such hangs.

Signed-off-by: Jamie Bainbridge <jamie.bainbridge@gmail.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jamie Bainbridge 2015-11-07 22:13:49 +10:00 • committed by Greg Kroah-Hartman

parent 224f259d93

commit 88413fceab

2 changed files with 5 additions and 6 deletions

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2

fs/cifs/cifs_debug.c

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9

fs/cifs/cifs_debug.h

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