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Date: Wed, 22 Nov 2023 20:32:44 +0000
From: Al Viro <>
To: Gabriel Krisman Bertazi <>
	Gabriel Krisman Bertazi <>
Subject: Re: [PATCH v6 4/9] fs: Add DCACHE_CASEFOLDED_NAME flag

On Wed, Aug 16, 2023 at 01:07:58AM -0400, Gabriel Krisman Bertazi wrote:
> From: Gabriel Krisman Bertazi <>
> This flag marks a negative or positive dentry as being created after a
> case-insensitive lookup operation.  It is useful to differentiate
> dentries this way to detect whether the negative dentry can be trusted
> during a case-insensitive lookup.

What should happen to that flag when d_splice_alias() picks an existing
alias?  AFAICS, you set it in ->lookup() for the dentry passed to ->lookup(),
but the alias picked by that sucker won't see anything of that sort, will

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