From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: [for-linus][PATCH 0/4] tracing: Fixes for v6.6-rc3
Date: Sat, 30 Sep 2023 16:32:13 -0400 [thread overview]
Message-ID: <20230930203213.826737400@goodmis.org> (raw)
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Tracing fixes for v6.6-rc3:
- Make sure 32 bit applications using user events have aligned access when
running on a 64 bit kernel.
- Add cond_resched in the loop that handles converting enums in print_fmt
string is trace events.
- Fix premature wake ups of polling processes in the tracing ring buffer. When
a task polls waiting for a percentage of the ring buffer to be filled, the
writer still will wake it up at every event. Add the polling's percentage to
the "shortest_full" list to tell the writer when to wake it up.
- For eventfs dir lookups on dynamic events, an event system's only event could
be removed, leaving its dentry with no children. This is totally legitimate.
But on eventfs_release() it must not access the children array, as it is only
allocated when the dentry has children.
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git
trace/urgent
Head SHA1: 2598bd3ca8dcf5bbca1161ee5b271b432398da37
Beau Belgrave (1):
tracing/user_events: Align set_bit() address for all archs
Clément Léger (1):
tracing: relax trace_event_eval_update() execution with cond_resched()
Steven Rostedt (Google) (2):
ring-buffer: Update "shortest_full" in polling
eventfs: Test for dentries array allocated in eventfs_release()
----
fs/tracefs/event_inode.c | 2 +-
kernel/trace/ring_buffer.c | 3 +++
kernel/trace/trace_events.c | 1 +
kernel/trace/trace_events_user.c | 58 +++++++++++++++++++++++++++++++++++-----
4 files changed, 56 insertions(+), 8 deletions(-)
next reply other threads:[~2023-09-30 20:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-30 20:32 Steven Rostedt [this message]
2023-09-30 20:32 ` [for-linus][PATCH 1/4] ring-buffer: Update "shortest_full" in polling Steven Rostedt
2023-09-30 20:32 ` [for-linus][PATCH 4/4] eventfs: Test for dentries array allocated in eventfs_release() Steven Rostedt
[not found] ` <20230930203821.632661639@goodmis.org>
2023-09-30 20:41 ` [for-linus][PATCH 2/4] tracing: relax trace_event_eval_update() execution with cond_resched() Steven Rostedt
[not found] ` <20230930203821.843544914@goodmis.org>
2023-09-30 20:41 ` [for-linus][PATCH 3/4] tracing/user_events: Align set_bit() address for all archs Steven Rostedt
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