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From: Andreas Schwab <schwab@linux-m68k.org>
To: xuyang2018.jy@fujitsu.com
Cc: Theodore Ts'o <tytso@mit.edu>,
	 "fweimer@redhat.com" <fweimer@redhat.com>,
	 "fstests@vger.kernel.org" <fstests@vger.kernel.org>,
	 "libc-alpha@sourceware.org" <libc-alpha@sourceware.org>
Subject: Re: [PATCH] src/ext4_resize.c: set errno to 0 before the strtoull call
Date: Tue, 18 Jan 2022 15:22:35 +0100	[thread overview]
Message-ID: <87fspl6s44.fsf@igel.home> (raw)
In-Reply-To: <61E64FED.2010906@fujitsu.com> (xuyang2018.'s message of "Tue, 18 Jan 2022 05:27:10 +0000")

On Jan 18 2022, xuyang2018.jy@fujitsu.com wrote:

> Now, I use glibc-2.34 and run the following program[1] but the errno is 
> not 0 in the beginning. So is this a known bug on glibc-2.34(Theodore 
> doesn't meet this problem on glicb-2.31)?
>
> [1]https://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git/tree/src/ext4_resize.c

Note that there is a call to open preceding the strtoull call, so no
guarantees can be made about the value of errno before the latter.

-- 
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
"And now for something completely different."

  parent reply	other threads:[~2022-01-18 14:22 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1642405014-3287-1-git-send-email-xuyang2018.jy@fujitsu.com>
     [not found] ` <YeYmzJG5M0y9BcMc@mit.edu>
     [not found]   ` <61E6298D.80006@fujitsu.com>
     [not found]     ` <YeY6Uh8I7RlsCicw@mit.edu>
2022-01-18  5:27       ` xuyang2018.jy
2022-01-18 11:23         ` Adhemerval Zanella
2022-01-18 11:26           ` Florian Weimer
2022-01-18 11:49             ` Adhemerval Zanella
2022-01-18 12:00               ` Florian Weimer
2022-01-18 12:04               ` Andreas Schwab
2022-01-18 12:26                 ` Adhemerval Zanella
2022-01-18 14:02         ` Florian Weimer
2022-01-19  6:14           ` xuyang2018.jy
2022-01-19  7:19             ` xuyang2018.jy
2022-01-19 13:57               ` Cristian Rodríguez
2022-01-19 14:07                 ` Cristian Rodríguez
2022-01-19 14:50                   ` Andrew G. Morgan
2022-01-19 20:13                     ` Theodore Ts'o
2022-01-18 14:22         ` Andreas Schwab [this message]
2022-01-18 14:29           ` H.J. Lu
2022-01-18 14:43             ` Yann Droneaud
2022-01-18 14:54               ` H.J. Lu
2022-01-18 15:30                 ` Andreas Schwab
2022-01-19  2:07           ` xuyang2018.jy
2022-01-19  8:23             ` Andreas Schwab

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