Author: Mathieu Desnoyers
Author Date: 2024-05-13 18:51:11 UTC

Version 2.13.13

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: Ia4f3e6f2686278cfdd4aea5389c63072e0fe42cb

Author: Michael Jeanson
Author Date: 2024-05-08 18:20:30 UTC

fix: Add missing 'pselect6_time32' and 'ppoll_time32' syscall overrides

The instrumentation currently has overrides to the generated syscall
tracepoints of 'ppoll' and 'pselect6' to extract additional information
from the parameters.

On arm-32 and x86-32 these 2 syscalls were renamed to 'ppoll_time32' and
'pselect6_time32' and new syscalls using 64-bit time_t were introduced
with the old names. This results in missing overrides on these
architectures for the 32-bit variants that were renamed.

Add the '_time32' overrides to restore the previous behavior.

Change-Id: I81e3a3ddc3f3cea58d86edcdf4a1fc9b600637c2
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

Author: Mathieu Desnoyers
Author Date: 2024-05-09 18:43:05 UTC

page alloc wrapper: Fix get_pfnblock_flags_mask prototype

The canary __canary__get_pfnblock_flags_mask has never done its job of
detecting changes to the prototype of get_pfnblock_flags_mask because
it was actually calling the wrapper, because the wrapper/page_alloc.h
header maps get_pfnblock_flags_mask to wrapper_get_pfnblock_flags_mask.

Unfortunately, this wrapper is included by page_alloc.c only _after_ the
linux/pageblock-flags.h header is included, which means the
get_pfnblock_flags_mask prototype does _not_ have the wrapper prefix,
which prevents it from being useful for any kind of type validation.

This has been detected by a compiler warning stating that
wrapper_get_pfnblock_flags_mask() does not have a prior declaration.

Move the wrapper/page_alloc.h include _before_ including
pageblock-flags.h. This ensures the declaration has the wrapper_ prefix,
and therefore the compiler compares the declaration with the definition
of wrapper_get_pfnblock_flags_mask within page_alloc.c. The canary
function can be removed because it is redundant with this type check.

With this proper type check in place, we notice the following two
changes upstream:

commit 535b81e209219 ("mm/page_alloc.c: remove unnecessary end_bitidx for [set|get]_pfnblock_flags_mask()")
introduced in v5.9 removes the end_bitidx argument.

commit ca891f41c4c79 ("mm: constify get_pfnblock_flags_mask and get_pfnblock_migratetype")
introduced in v5.14 adds a const qualifier to the struct page pointer.

Adapt the code to match the evolution of this prototype.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I51b7871edfbff0f74ba1cf4d0ad988eb8d642b4e

Author: Michael Jeanson
Author Date: 2021-10-13 17:47:23 UTC

Document last supported kernel version for stable-2.11 branch

Change-Id: Ic8be9aa878a8381051da204c8fca2fd73087bec2
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

Author: Mathieu Desnoyers
Author Date: 2021-02-16 18:49:00 UTC

Document last supported kernel version for stable-2.10 branch

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: Ie554bb04840f799c34b0f28657cf982969991797

Author: Mathieu Desnoyers
Author Date: 2019-10-17 19:14:20 UTC

Version 2.9.15

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

Author: Mathieu Desnoyers
Author Date: 2017-08-02 16:38:43 UTC

Version 2.8.7

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

Author: Mathieu Desnoyers
Author Date: 2016-10-13 14:12:32 UTC

Version 2.7.7

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

Author: Mathieu Desnoyers
Author Date: 2016-05-20 21:50:22 UTC

Version 2.6.6

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

Author: Mathieu Desnoyers
Author Date: 2015-09-09 20:38:21 UTC

Version 2.5.6

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

Author: Mathieu Desnoyers
Author Date: 2015-01-26 20:21:45 UTC

Version 2.4.4

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

Author: Mathieu Desnoyers
Author Date: 2014-03-15 18:19:18 UTC

Fix file permissions for lttng-statedump-impl.c

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

Author: Mathieu Desnoyers
Author Date: 2014-02-28 17:33:30 UTC

Version 2.2.4

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

Author: Mathieu Desnoyers
Author Date: 2013-07-11 20:30:31 UTC

Version 2.1.3

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

Author: Mathieu Desnoyers
Author Date: 2013-07-11 20:26:34 UTC

Version 2.0.8

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

Author: Juha Niskanen
Author Date: 2011-11-25 21:59:56 UTC

lttng-modules v0.19-stable: setup_trace_write: Fix recursive locking

lttng-modules: ltt_trace_destroy calls ltt_lock_traces internally so
this non-recursive mutex must be first unlocked when executing error
handling code.

Signed-off-by: Juha Niskanen <juha_niskanen@mentor.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>