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| author |   Tycho Andersen <tandersen@netflix.com> | 2024-02-07 10:19:29 +0100 |
|---|---|---|
| committer |   Christian Brauner <brauner@kernel.org> | 2024-02-07 12:09:44 +0100 |
| commit | 0c9bd6bc4bb2ecfe8ce12e9a77ccd762dabe18b4 (patch) | |
| tree | 1dbd5b043ffe82884c4e95b1c7aa9bd8afef273e /scripts/generate_rust_analyzer.py | |
| parent | pidfd: clone: allow CLONE_THREAD | CLONE_PIDFD together (diff) | |
| download | linux-rng-0c9bd6bc4bb2ecfe8ce12e9a77ccd762dabe18b4.tar.xz linux-rng-0c9bd6bc4bb2ecfe8ce12e9a77ccd762dabe18b4.zip | |
pidfd: getfd should always report ESRCH if a task is exiting
We can get EBADF from pidfd_getfd() if a task is currently exiting,
which might be confusing. Let's check PF_EXITING, and just report ESRCH
if so.
I chose PF_EXITING, because it is set in exit_signals(), which is called
before exit_files(). Since ->exit_status is mostly set after
exit_files() in exit_notify(), using that still leaves a window open for
the race.
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Tycho Andersen <tandersen@netflix.com>
Link: https://lore.kernel.org/r/20240206192357.81942-1-tycho@tycho.pizza
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'scripts/generate_rust_analyzer.py')
0 files changed, 0 insertions, 0 deletions