From: David Sterba Date: Mon, 12 Jun 2017 17:50:41 +0000 (+0200) Subject: btrfs: document more parameters of submit_extent_page X-Git-Tag: v4.17-rc1~137^2~67 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=b8b3d625ce67e4d4b994ae8d09308b3ab4f651d8;p=users%2Fjedix%2Flinux-maple.git btrfs: document more parameters of submit_extent_page Signed-off-by: David Sterba --- diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index fecf1e5c4f97f..f27bad003f8e2 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2746,7 +2746,19 @@ static int __must_check submit_one_bio(struct bio *bio, int mirror_num, /* * @opf: bio REQ_OP_* and REQ_* flags as one value + * @tree: tree so we can call our merge_bio hook + * @wbc: optional writeback control for io accounting + * @page: page to add to the bio + * @pg_offset: offset of the new bio or to check whether we are adding + * a contiguous page to the previous one + * @size: portion of page that we want to write + * @offset: starting offset in the page + * @bdev: attach newly created bios to this bdev * @bio_ret: must be valid pointer, newly allocated bio will be stored there + * @end_io_func: end_io callback for new bio + * @mirror_num: desired mirror to read/write + * @prev_bio_flags: flags of previous bio to see if we can merge the current one + * @bio_flags: flags of the current bio to see if we can merge them */ static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree, struct writeback_control *wbc,