Re: [f2fs-dev] [PATCH v4 2/2] f2fs: fix to zero post-EOF data when extending file size

Chao Yu via Linux-f2fs-devel <[email protected]> Tue, 11 Aug 2026 15:17:20 +0800
Newsgroups net.sourceforge.lists.linux-f2fs-devel,org.kernel.vger.linux-kernel
Message-ID <[email protected]>
On 8/10/26 16:52, Zhiguo Niu wrote:
> Chao Yu via Linux-f2fs-devel <[email protected]>
>> When extending file size (e.g. via truncate, fallocate, or write) across an
>> unaligned EOF boundary, we need to ensure that post-EOF data in the partial
>> page is zeroed out in pagecache and marked dirty, meanwhile, tagging the inode
>> with FI_ZERO_POST_EOF, so that following checkpoint() and fsync() can persist
> Hi Chao,
> It looks like this version doesn't have this flag "FI_ZERO_POST_EOF"?

Thanks for catching this, fixed in v5.

Thanks,

> thanks!


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