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From: Sunil Bhargo <sunil.bhargo@broadcom.com>
To: linux-nfs@vger.kernel.org
Subject: PNFS block layouts
Date: Mon, 13 Apr 2026 09:37:04 +0530	[thread overview]
Message-ID: <CABKB_79e89d3Yq8YpT2iQT8=kH3Eyz4pA1rY6_=eRTHvaG-KLA@mail.gmail.com> (raw)


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Hi,

I hope this is the proper forum for NFS PNFS related questions, if not can
you please point to the proper mailing list.

I have couple of questions regarding PNFS block layouts:-

1) Is there any limitation in Linux client regarding number of segments in
layoutget that it can handle for block layouts? By segments I mean any
limit on number of entries in blo_extents on client side

/// struct pnfs_block_layout4 {


 /// pnfs_block_extent4 blo_extents<>;


/// /* extents which make up this /// layout. */

 /// }; ///



2) I see that the Linux server recalls(RECALLCONFLICT) the layouts for
clients if there are more than one client requesting for iomode of
even READ for an overlapping range ? Any reason why iomode of READ should
result in conflict ?

Any pointers would be helpful.

Thanks,
Sunil Bhargo

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                 reply	other threads:[~2026-04-13  4:07 UTC|newest]

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