Messages in this thread | | | Date | Tue, 8 Nov 2022 11:09:29 +0800 | Subject | Re: [PATCH 2/2] erofs: get correct count for unmapped range in fscache mode | From | Chao Yu <> |
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On 2022/11/4 13:40, Jingbo Xu wrote: > For unmapped range, the returned map.m_llen is zero, and thus the > calculated count is unexpected zero. > > Prior to the refactoring introduced by commit 1ae9470c3e14 ("erofs: > clean up .read_folio() and .readahead() in fscache mode"), only the > readahead routine suffers from this. With the refactoring of making > .read_folio() and .readahead() calling one common routine, both > read_folio and readahead have this issue now. > > Fix this by calculating count separately in unmapped condition. > > Fixes: c665b394b9e8 ("erofs: implement fscache-based data readahead") > Fixes: 1ae9470c3e14 ("erofs: clean up .read_folio() and .readahead() in fscache mode") > Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Thanks,
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