Steven Rostedt (Red Hat) e57cbaf0eb tracing: Do not have 'comm' filter override event 'comm' field ... Commit 9f61668073 "tracing: Allow triggers to filter for CPU ids and process names" added a 'comm' filter that will filter events based on the current tasks struct 'comm'. But this now hides the ability to filter events that have a 'comm' field too. For example, sched_migrate_task trace event. That has a 'comm' field of the task to be migrated. echo 'comm == "bash"' > events/sched_migrate_task/filter will now filter all sched_migrate_task events for tasks named "bash" that migrates other tasks (in interrupt context), instead of seeing when "bash" itself gets migrated. This fix requires a couple of changes. 1) Change the look up order for filter predicates to look at the events fields before looking at the generic filters. 2) Instead of basing the filter function off of the "comm" name, have the generic "comm" filter have its own filter_type (FILTER_COMM). Test against the type instead of the name to assign the filter function. 3) Add a new "COMM" filter that works just like "comm" but will filter based on the current task, even if the trace event contains a "comm" field. Do the same for "cpu" field, adding a FILTER_CPU and a filter "CPU". Cc: stable@vger.kernel.org # v4.3+ Fixes: 9f61668073 "tracing: Allow triggers to filter for CPU ids and process names" Reported-by: Matt Fleming <matt@codeblueprint.co.uk> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>		2016-03-04 09:57:10 -05:00
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acpi	ACPI / CPPC: remove redundant mbox_send_message() declaration	2016-02-03 01:09:52 +01:00
asm-generic	cputime: Prevent 32bit overflow in time[val|spec]_to_cputime()	2016-02-02 15:24:38 +01:00
clocksource	…
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2016-01-22 11:58:43 -08:00
drm	Merge branch 'drm-fixes-mst' of git://people.freedesktop.org/~airlied/linux into drm-fixes	2016-02-05 15:24:17 +10:00
dt-bindings	ARM: SoC driver updates for v4.5	2016-01-20 18:42:30 -08:00
keys	…
kvm	…
linux	tracing: Do not have 'comm' filter override event 'comm' field	2016-03-04 09:57:10 -05:00
math-emu	…
media	[media] vb2: fix nasty vb2_thread regression	2016-02-04 09:13:46 -02:00
memory	…
misc	…
net	vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices	2016-02-10 05:50:03 -05:00
pcmcia	…
ras	…
rdma	…
rxrpc	…
scsi	Initial roundup of 4.5 merge window patches	2016-01-23 18:45:06 -08:00
soc	ARM: SoC driver updates for v4.5	2016-01-20 18:42:30 -08:00
sound	ALSA: rawmidi: Make snd_rawmidi_transmit() race-free	2016-02-03 14:51:28 +01:00
target	target/transport: add flag to indicate CPU Affinity is observed	2016-02-10 23:08:55 -08:00
trace	This includes three minor fixes, mostly due to cut-and-paste issues.	2016-01-28 17:00:50 -08:00
uapi	Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm	2016-02-01 15:21:20 -08:00
video	…
xen	Merge branch 'for-4.5/drivers' of git://git.kernel.dk/linux-block	2016-01-21 18:19:38 -08:00
Kbuild	…