[PATCH RFC v2 0/2] pidfs: use maple tree

[Christian Brauner <brauner@kernel.org>]

Hey,

Ok, I wanted to give this another try as I'd really like to rely on the
maple tree supporting ULONG_MAX when BITS_PER_LONG is 64 as it makes
things a lot simpler overall.

As Willy didn't want additional users relying on an external lock I made
it so that we don't have to and can just use the mtree lock.

However, I need an irq safe variant which is why I added support for
this into the maple tree.

This is pullable from
https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git work.pidfs.maple_tree

Thanks!
Christian

---
Christian Brauner (2):
      maple_tree: make MT_FLAGS_LOCK_IRQ do something
      pidfs: use maple tree

 fs/pidfs.c                 | 52 +++++++++++++++++++++++++++-------------------
 include/linux/maple_tree.h | 16 ++++++++++++--
 kernel/pid.c               | 34 +++++++++++++++---------------
 3 files changed, 62 insertions(+), 40 deletions(-)
---
base-commit: 963c8e506c6d4769d04fcb64d4bf783e4ef6093e
change-id: 20241206-work-pidfs-maple_tree-b322ff5399b7