linux.git/block/blktrace.c, branch v2.6.22

[PATCH] mark struct file_operations const 3

2007-02-12T17:48:45+00:00

Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Relay: add CPU hotplug support

2007-02-11T18:51:28+00:00

Mathieu originally needed to add this for tracing Xen, but it's something
that's needed for any application that can be tracing while cpus are added.

unplug isn't supported by this patch.  The thought was that at minumum a new
buffer needs to be added when a cpu comes up, but it wasn't worth the effort
to remove buffers on cpu down since they'd be freed soon anyway when the
channel was closed.

[zanussi@us.ibm.com: avoid lock_cpu_hotplug deadlock]
Signed-off-by: Mathieu Desnoyers 
Cc: Tom Zanussi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Allow NULL pointers in percpu_free

2006-12-07T16:39:22+00:00

The patch (as824b) makes percpu_free() ignore NULL arguments, as one would
expect for a deallocation routine.  (Note that free_percpu is #defined as
percpu_free in include/linux/percpu.h.) A few callers are updated to remove
now-unneeded tests for NULL.  A few other callers already seem to assume
that passing a NULL pointer to percpu_free() is okay!

The patch also removes an unnecessary NULL check in percpu_depopulate().

Signed-off-by: Alan Stern 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] blktrace: don't return blktrace_seq from trace_note()

2006-12-04T08:30:58+00:00

Only the process notifier needs it, and it can set it manually.

Signed-off-by: Jens Axboe

[PATCH] blktrace: uninline trace_note()

2006-12-04T08:27:41+00:00

It's too large to inline. Additionally clean it up, by fast pathing
the likely path.

Signed-off-by: Jens Axboe

[PATCH] blktrace: add timestamp message

2006-12-01T09:39:12+00:00

This adds a new timestamp message to blktrace, giving the timeofday when
we starting tracing. This helps user space correlate block trace events
with eg an application strace.

This requires a (compatible) update to blkparse. The changed blkparse
is still able to process traces generated by older kernels, and older
versions of blkparse should silently ignore the new records (because
they have a pid of 0).

Signed-off-by: Olaf Kirch 
Signed-off-by: Jens Axboe

[PATCH] Update axboe@suse.de email address

2006-09-30T18:52:34+00:00

As people often look for the copyright in files to see who to mail,
update the link to a neutral one.

Signed-off-by: Jens Axboe

[PATCH] blktrace: cleanup using on_each_cpu

2006-09-30T18:31:19+00:00

This patch kills a few lines of code in blktrace by making use of
on_each_cpu().

Signed-off-by: Martin Peschke 
Signed-off-by: Jens Axboe

[PATCH] blktrace: support for logging metadata reads

2006-09-30T18:29:43+00:00

Signed-off-by: Jens Axboe

[PATCH] ifdef blktrace debugging fields

2006-09-29T16:18:09+00:00

Signed-off-by: Alexey Dobriyan 
Acked-by: Jens Axboe 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds