From: Linus Torvalds <torvalds@linux-foundation.org>
To: Jens Axboe <axboe@kernel.dk>
Cc: Matthew Wilcox <willy@infradead.org>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
Al Viro <viro@zeniv.linux.org.uk>
Subject: Re: [PATCH 2/4] fs: add support for LOOKUP_NONBLOCK
Date: Tue, 15 Dec 2020 11:32:16 -0800 [thread overview]
Message-ID: <CAHk-=wgdcShySTmDbpwDiDQvDifLNN9XPjqw7BPij0YT4-z6sw@mail.gmail.com> (raw)
In-Reply-To: <5e9f9121-68dd-81a1-38b7-8e1b4fd0cf0f@kernel.dk>
On Tue, Dec 15, 2020 at 11:03 AM Jens Axboe <axboe@kernel.dk> wrote:
>
> And for comparison, doing the same thing with the regular openat2()
> system call takes 867,897 usec.
Well, you could always thread it. That's what git does for its
'stat()' loop for 'git diff' and friends (the whole "check that the
index is up-to-date with all the files in the working tree" is
basically just a lot of lstat() calls).
Linus
next prev parent reply other threads:[~2020-12-15 19:32 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-14 19:13 [PATCHSET v3 0/4] fs: Support for LOOKUP_NONBLOCK / RESOLVE_NONBLOCK Jens Axboe
2020-12-14 19:13 ` [PATCH 1/4] fs: make unlazy_walk() error handling consistent Jens Axboe
2020-12-14 19:13 ` [PATCH 2/4] fs: add support for LOOKUP_NONBLOCK Jens Axboe
2020-12-15 12:24 ` Matthew Wilcox
2020-12-15 15:29 ` Jens Axboe
2020-12-15 15:33 ` Matthew Wilcox
2020-12-15 15:37 ` Jens Axboe
2020-12-15 16:08 ` Jens Axboe
2020-12-15 16:14 ` Jens Axboe
2020-12-15 18:29 ` Linus Torvalds
2020-12-15 18:44 ` Jens Axboe
2020-12-15 18:47 ` Linus Torvalds
2020-12-15 19:03 ` Jens Axboe
2020-12-15 19:32 ` Linus Torvalds [this message]
2020-12-15 19:38 ` Jens Axboe
2020-12-16 2:36 ` Al Viro
2020-12-16 3:30 ` Jens Axboe
2020-12-16 2:43 ` Al Viro
2020-12-16 3:32 ` Jens Axboe
2020-12-14 19:13 ` [PATCH 3/4] fs: expose LOOKUP_NONBLOCK through openat2() RESOLVE_NONBLOCK Jens Axboe
2020-12-15 22:25 ` Dave Chinner
2020-12-15 22:31 ` Linus Torvalds
2020-12-15 23:25 ` Jens Axboe
2020-12-16 2:37 ` Al Viro
2020-12-16 3:39 ` Linus Torvalds
2020-12-14 19:13 ` [PATCH 4/4] io_uring: enable LOOKUP_NONBLOCK path resolution for filename lookups Jens Axboe
2020-12-15 3:06 ` [PATCHSET v3 0/4] fs: Support for LOOKUP_NONBLOCK / RESOLVE_NONBLOCK Linus Torvalds
2020-12-15 3:18 ` Jens Axboe
2020-12-15 6:11 ` Al Viro
2020-12-15 15:29 ` Jens Axboe
2021-01-04 5:31 ` Al Viro
2021-01-04 14:43 ` Jens Axboe
2021-01-04 16:54 ` Al Viro
2021-01-04 17:03 ` Jens Axboe
[not found] ` <m1lfbrwrgq.fsf@fess.ebiederm.org>
2021-02-14 16:38 ` [PATCHSET v3 0/4] fs: Support for LOOKUP_NONBLOCK / RESOLVE_NONBLOCK (Insufficiently faking current?) Jens Axboe
2021-02-14 20:30 ` Linus Torvalds
2021-02-14 21:24 ` Al Viro
2021-02-15 18:07 ` Eric W. Biederman
2021-02-15 18:24 ` Jens Axboe
2021-02-15 21:09 ` Jens Axboe
2021-02-15 22:41 ` Eric W. Biederman
2021-02-16 2:41 ` Jens Axboe
2021-02-17 1:18 ` Jens Axboe
2021-02-17 1:26 ` Jens Axboe
2021-02-17 3:11 ` Jens Axboe
2021-02-15 17:56 ` Eric W. Biederman
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