Messages in this thread | | | Subject | Re: [PATCH 18/25] btrfs: Use readahead_batch_length | From | John Hubbard <> | Date | Thu, 17 Dec 2020 11:36:58 -0800 |
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On 12/17/20 5:42 AM, Matthew Wilcox wrote: > On Thu, Dec 17, 2020 at 12:12:46PM +0000, Matthew Wilcox wrote: >> ehh ... probably an off-by-one. Does subtracting 1 from contig_end fix it? >> I'll spool up a test VM shortly and try it out. > > Yes, this fixed it: > > - u64 contig_end = contig_start + readahead_batch_length(rac); > + u64 contig_end = contig_start + readahead_batch_length(rac) - 1; >
Yes, confirmed on my end, too.
thanks, -- John Hubbard NVIDIA
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