diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-11-18 10:47:46 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-11-18 10:47:46 -0800 |
commit | 909d3b571e5a77aef0949818de1efda129dcddbd (patch) | |
tree | a6e34ed57a730fe06d9209e472f779743d1acc26 /arch/arm64/include | |
parent | a29835c9d0ba5365d64b56883692d0e8675fb615 (diff) | |
parent | cdda1f26e74bac732eca537a69f19f6a37b641be (diff) |
Merge tag 'vfs-6.13.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull pidfs update from Christian Brauner:
"This adds a new ioctl to retrieve information about a pidfd.
A common pattern when using pidfds is having to get information about
the process, which currently requires /proc being mounted, resolving
the fd to a pid, and then do manual string parsing of /proc/N/status
and friends. This needs to be reimplemented over and over in all
userspace projects (e.g.: it has been reimplemented in systemd, dbus,
dbus-daemon, polkit so far), and requires additional care in checking
that the fd is still valid after having parsed the data, to avoid
races.
Having a programmatic API that can be used directly removes all these
requirements, including having /proc mounted.
As discussed at LPC24, add an ioctl with an extensible struct so that
more parameters can be added later if needed. Start with returning
pid/tgid/ppid and some creds unconditionally, and cgroupid optionally"
* tag 'vfs-6.13.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
pidfd: add ioctl to retrieve pid info
Diffstat (limited to 'arch/arm64/include')
0 files changed, 0 insertions, 0 deletions