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909d3b571e
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZzcg9wAKCRCRxhvAZXjc ou7GAQDtQ75C+DFjrL4alXjYG7uly0BWgrlRJ4SgNu1I0uUYdgD/UHH2fAkQeKGy xTGT4z0abiELZw9RQ7F6qbiBhA0nIw8= =Plww -----END PGP SIGNATURE----- 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 |
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