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| author |   Steven Rostedt (VMware) <rostedt@goodmis.org> | 2019-10-11 17:56:57 -0400 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2019-10-12 20:40:21 -0400 |
| commit | 9ef16693aff8137faa21d16ffe65bb9832d24d71 (patch) | |
| tree | 7e23890397b42a49853612a91c2edb9f48f489f2 /scripts/gdb/linux/utils.py | |
| parent | tracefs: Revert ccbd54ff54e8 ("tracefs: Restrict tracefs when the kernel is locked down") (diff) | |
| download | wireguard-linux-9ef16693aff8137faa21d16ffe65bb9832d24d71.tar.xz wireguard-linux-9ef16693aff8137faa21d16ffe65bb9832d24d71.zip | |
ftrace: Get a reference counter for the trace_array on filter files
The ftrace set_ftrace_filter and set_ftrace_notrace files are specific for
an instance now. They need to take a reference to the instance otherwise
there could be a race between accessing the files and deleting the instance.
It wasn't until the :mod: caching where these file operations started
referencing the trace_array directly.
Cc: stable@vger.kernel.org
Fixes: 673feb9d76ab3 ("ftrace: Add :mod: caching infrastructure to trace_array")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'scripts/gdb/linux/utils.py')
0 files changed, 0 insertions, 0 deletions