* Does nilfs2 checksum all data?
@ 2011-11-19 14:08 bl4
2011-11-19 15:10 ` Ryusuke Konishi
0 siblings, 1 reply; 2+ messages in thread
From: bl4 @ 2011-11-19 14:08 UTC (permalink / raw)
To: linux-nilfs-u79uwXL29TY76Z2rM5mHXA
Hi,
Does nilfs2 store checksums of all data and verify them when reading?
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bl4
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* Re: Does nilfs2 checksum all data?
2011-11-19 14:08 Does nilfs2 checksum all data? bl4
@ 2011-11-19 15:10 ` Ryusuke Konishi
0 siblings, 0 replies; 2+ messages in thread
From: Ryusuke Konishi @ 2011-11-19 15:10 UTC (permalink / raw)
To: bl4.929b-36pCxkIrkqeZuzBka8ofvg; +Cc: linux-nilfs-u79uwXL29TY76Z2rM5mHXA
Hi,
On Sat, 19 Nov 2011 15:08:54 +0100, bl4 wrote:
> Hi,
> Does nilfs2 store checksums of all data and verify them when reading?
nilfs2 store checksums for all data. However, at least the current
implementation does not verify it when reading.
Actually, the main purpose of the checksums is recovery after
unexpected reboot; it does not suit for per-file data verification
because the checksums are given per ``log''.
Regards,
Ryusuke Konishi
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