Re: [PATCH v5 0/3] fs/file.c: optimize the critical section of file_lock in

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On Mon, Jul 22, 2024 at 05:02:04PM +0200, Christian Brauner wrote:

> Applied to the vfs.misc branch of the vfs/vfs.git tree.
> Patches in the vfs.misc branch should appear in linux-next soon.
> 
> Please report any outstanding bugs that were missed during review in a
> new review to the original patch series allowing us to drop it.
> 
> It's encouraged to provide Acked-bys and Reviewed-bys even though the
> patch has now been applied. If possible patch trailers will be updated.
> 
> Note that commit hashes shown below are subject to change due to rebase,
> trailer updates or similar. If in doubt, please check the listed branch.
> 
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git
> branch: vfs.misc
> 
> [1/3] fs/file.c: remove sanity_check and add likely/unlikely in alloc_fd()
>       https://git.kernel.org/vfs/vfs/c/19f4a3f5712a
> [2/3] fs/file.c: conditionally clear full_fds
>       https://git.kernel.org/vfs/vfs/c/b483266658a8
> [3/3] fs/file.c: add fast path in find_next_fd()
>       https://git.kernel.org/vfs/vfs/c/3603a42c8c03

Hmm...   Something fishy's going on - those are not reachable by any branches.
As the matter of fact, none of the branches contain _anything_ recent in
fs/file.c or include/linux/fdtable.h; the only thing I see for include/linux/file.h
is (dubious, IMO) DEFINE_FREE(fput,...) - this IS_ERR_OR_NULL in there needs
a review of potential users.

I'm putting together (in viro/vfs.git) a branch for that area (#work.fdtable)
and I'm going to apply those 3 unless anyone objects.




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