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authorGao Xiang <gaoxiang25@huawei.com>2019-09-04 10:09:02 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-09-05 20:10:08 +0200
commita5c0b7802cc9631e0dee67abd30c2f022621ae7c (patch)
tree8d12f4baf75cde72c03cd3fceb73f1f09dd9ed4c /fs/erofs/zdata.c
parent688a5f2ed486914c28e17062139c07897307ee01 (diff)
downloadlinux-a5c0b7802cc9631e0dee67abd30c2f022621ae7c.tar.gz
erofs: localize erofs_grab_bio()
As Christoph pointed out [1], "erofs_grab_bio tries to
handle a bio_alloc failure, except that the function will
not actually fail due the mempool backing it."

Sorry about useless code, fix it now and
localize erofs_grab_bio [2].

[1] https://lore.kernel.org/r/20190830162812.GA10694@infradead.org/
[2] https://lore.kernel.org/r/20190902122016.GL15931@infradead.org/
Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Link: https://lore.kernel.org/r/20190904020912.63925-16-gaoxiang25@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/erofs/zdata.c')
-rw-r--r--fs/erofs/zdata.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index f06a2fad7af2..21ade322cc81 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -1263,9 +1263,13 @@ submit_bio_retry:
 		}
 
 		if (!bio) {
-			bio = erofs_grab_bio(sb, first_index + i,
-					     BIO_MAX_PAGES, bi_private,
-					     z_erofs_vle_read_endio, true);
+			bio = bio_alloc(GFP_NOIO, BIO_MAX_PAGES);
+
+			bio->bi_end_io = z_erofs_vle_read_endio;
+			bio_set_dev(bio, sb->s_bdev);
+			bio->bi_iter.bi_sector = (sector_t)(first_index + i) <<
+				LOG_SECTORS_PER_BLOCK;
+			bio->bi_private = bi_private;
 			++nr_bios;
 		}