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scatterlist: Fix offset in folio calc in extract_xarray_to_sg()

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Fix the calculation of the offset in the folio being extracted in
extract_xarray_to_sg().

Note that in the near future, ITER_XARRAY should be removed.

Fixes: f5f82cd187 ("Move netfs_extract_iter_to_sg() to lib/scatterlist.c")
Link: https://sashiko.dev/#/patchset/20260608145432.681865-1-dhowells%40redhat.com
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://patch.msgid.link/20260625140640.3116900-10-dhowells@redhat.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
cc: Paulo Alcantara <pc@manguebit.org>
cc: Matthew Wilcox <willy@infradead.org>
cc: Christoph Hellwig <hch@infradead.org>
cc: Jens Axboe <axboe@kernel.dk>
cc: Mike Marshall <hubcap@omnibond.com>
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
David Howells
2026-07-01 15:26:29 +02:00
committed by Christian Brauner
parent 0442e23a5f
commit 2bcd3ab372
1 changed files with 1 additions and 0 deletions
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lib/scatterlist.c
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@@ -1366,6 +1366,7 @@ static ssize_t extract_xarray_to_sg(struct iov_iter *iter,
sg_max--; sg_max--;
maxsize -= len; maxsize -= len;
start += len;
ret += len; ret += len;
if (maxsize <= 0 || sg_max == 0) if (maxsize <= 0 || sg_max == 0)
break; break;