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From: Jeff King <peff@peff.net>
To: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Cc: git@vger.kernel.org
Subject: Re: [PATCH 2/9] fsck_tree(): fix shadowed variable
Date: Mon, 3 May 2021 16:13:22 -0400	[thread overview]
Message-ID: <YJBZYt8ivlTDHpRM@coredump.intra.peff.net> (raw)
In-Reply-To: <87y2cwvz9e.fsf@evledraar.gmail.com>

On Mon, May 03, 2021 at 01:15:03PM +0200, Ævar Arnfjörð Bjarmason wrote:

> > Commit b2f2039c2b (fsck: accept an oid instead of a "struct tree" for
> > fsck_tree(), 2019-10-18) introduced a new "oid" parameter to
> > fsck_tree(), and we pass it to the report() function when we find
> [...]
> 
> Have you considered just passing down the "obj" instead of the "oid"?
> It's a bit of a bigger change, but seems to be worth it in this case as
> the below diff (on top of master) shows. We spend quite a bit of effort
> peeling an "obj" just to pass oid/type further down the stack.

That would be undoing the point of the referenced commit above. More
discussion in this thread:

  https://lore.kernel.org/git/20191018044103.GA17625@sigill.intra.peff.net/

but the gist is:

  - there were bugs caused by looking at the object structs; not having
    it make sure we can't introduce similar bugs

  - using oids and buffers makes it possible for code to avoid having
    object structs at all. index-pack could take advantage of this (to
    reduce memory usage), but nobody has yet written that patch.

-Peff

  reply	other threads:[~2021-05-03 20:13 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-01 15:40 [PATCH 0/9] leftover bits from symlinked gitattributes, etc topics Jeff King
2021-05-01 15:41 ` [PATCH 1/9] t7415: remove out-dated comment about translation Jeff King
2021-05-03  9:46   ` Ævar Arnfjörð Bjarmason
2021-05-03 20:29     ` Jeff King
2021-05-01 15:41 ` [PATCH 2/9] fsck_tree(): fix shadowed variable Jeff King
2021-05-03 11:15   ` Ævar Arnfjörð Bjarmason
2021-05-03 20:13     ` Jeff King [this message]
2021-05-04 10:10       ` Ævar Arnfjörð Bjarmason
2021-05-01 15:41 ` [PATCH 3/9] fsck_tree(): wrap some long lines Jeff King
2021-05-03 11:22   ` Ævar Arnfjörð Bjarmason
2021-05-03 20:23     ` Jeff King
2021-05-01 15:42 ` [PATCH 4/9] t7415: rename to expand scope Jeff King
2021-05-01 15:42 ` [PATCH 5/9] t7450: test verify_path() handling of gitmodules Jeff King
2021-05-01 18:55   ` Eric Sunshine
2021-05-01 19:03     ` Eric Sunshine
2021-05-03 19:39       ` Jeff King
2021-05-03 10:12   ` Ævar Arnfjörð Bjarmason
2021-05-03 20:32     ` Jeff King
2021-05-01 15:42 ` [PATCH 6/9] t7450: test .gitmodules symlink matching against obscured names Jeff King
2021-05-01 15:42 ` [PATCH 7/9] t0060: test ntfs/hfs-obscured dotfiles Jeff King
2021-05-01 15:43 ` [PATCH 8/9] fsck: warn about symlinked dotfiles we'll open with O_NOFOLLOW Jeff King
2021-05-01 15:43 ` [PATCH 9/9] docs: document symlink restrictions for dot-files Jeff King
2021-05-01 19:16   ` Eric Sunshine
2021-05-03 20:33     ` Jeff King
2021-05-03  5:36 ` [PATCH 0/9] leftover bits from symlinked gitattributes, etc topics Junio C Hamano
2021-05-03 20:42 ` [PATCH v2 " Jeff King
2021-05-03 20:43   ` [PATCH v2 1/9] t7415: remove out-dated comment about translation Jeff King
2021-05-03 20:43   ` [PATCH v2 2/9] fsck_tree(): fix shadowed variable Jeff King
2021-05-03 20:43   ` [PATCH v2 3/9] fsck_tree(): wrap some long lines Jeff King
2021-05-03 20:43   ` [PATCH v2 4/9] t7415: rename to expand scope Jeff King
2021-05-03 20:43   ` [PATCH v2 5/9] t7450: test verify_path() handling of gitmodules Jeff King
2021-05-03 20:43   ` [PATCH v2 6/9] t7450: test .gitmodules symlink matching against obscured names Jeff King
2021-05-03 20:43   ` [PATCH v2 7/9] t0060: test ntfs/hfs-obscured dotfiles Jeff King
2021-05-03 20:43   ` [PATCH v2 8/9] fsck: warn about symlinked dotfiles we'll open with O_NOFOLLOW Jeff King
2021-05-03 20:43   ` [PATCH v2 9/9] docs: document symlink restrictions for dot-files Jeff King

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