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From: Al Viro <viro@zeniv.linux.org.uk>
To: Shuah Khan <skhan@linuxfoundation.org>
Cc: axboe@kernel.dk, zohar@linux.vnet.ibm.com, mcgrof@kernel.org,
	keescook@chromium.org, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] fs: avoid fdput() after failed fdget() in ksys_sync_file_range()
Date: Fri, 8 May 2020 01:05:09 +0100	[thread overview]
Message-ID: <20200508000509.GK23230@ZenIV.linux.org.uk> (raw)
In-Reply-To: <31be6e0896eba59c06eb9d3d137b214f7220cc53.1588894359.git.skhan@linuxfoundation.org>

On Thu, May 07, 2020 at 05:57:09PM -0600, Shuah Khan wrote:
> Fix ksys_sync_file_range() to avoid fdput() after a failed fdget().
> fdput() doesn't do fput() on this file since FDPUT_FPUT isn't set
> in fd.flags. Fix it anyway since failed fdget() doesn't require
> a fdput().
> 
> This was introdcued in a commit to add sync_file_range() helper.

Er...  What's the point microoptimizing the slow path here?

  reply	other threads:[~2020-05-08  0:05 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-07 23:57 [PATCH 0/2] fs: avoid fdput() after failed fdget() Shuah Khan
2020-05-07 23:57 ` [PATCH 1/2] fs: avoid fdput() after failed fdget() in ksys_sync_file_range() Shuah Khan
2020-05-08  0:05   ` Al Viro [this message]
2020-05-08  0:24     ` Al Viro
2020-05-08  2:21       ` Luis Chamberlain
2020-05-08 15:07         ` Shuah Khan
2020-05-07 23:57 ` [PATCH 2/2] fs: avoid fdput() after failed fdget() in kernel_read_file_from_fd() Shuah Khan

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