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Date: Wed, 1 Nov 2017 11:49:42 -0600 From: Greg Edwards <gedwards@....com> To: <linux-fsdevel@...r.kernel.org> CC: Christoph Hellwig <hch@....de>, Al Viro <viro@...iv.linux.org.uk>, "Jens Axboe" <axboe@...nel.dk>, <linux-kernel@...r.kernel.org> Subject: Re: [PATCH v2] fs: guard_bio_eod() needs to consider partitions On Tue, Oct 24, 2017 at 11:21:48AM -0600, Greg Edwards wrote: > guard_bio_eod() needs to look at the partition capacity, not just the > capacity of the whole device, when determining if truncation is > necessary. > > [ 60.268688] attempt to access beyond end of device > [ 60.268690] unknown-block(9,1): rw=0, want=67103509, limit=67103506 > [ 60.268693] buffer_io_error: 2 callbacks suppressed > [ 60.268696] Buffer I/O error on dev md1p7, logical block 4524305, async page read > > Fixes: 74d46992e0d9 ("block: replace bi_bdev with a gendisk pointer and partitions index") > Signed-off-by: Greg Edwards <gedwards@....com> > --- > Changes from v1: > * use __disk_get_part instead of disk_get_part, similar to what > blk_partition_remap does Al, Christoph, Any thoughts on this version? It would be nice to get this fixed before 4.14 goes out, as this is a regression from previous releases. Greg
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