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Kirill Smelkov
linux
Commits
b8b3d625
Commit
b8b3d625
authored
Jun 12, 2017
by
David Sterba
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btrfs: document more parameters of submit_extent_page
Signed-off-by:
David Sterba
<
dsterba@suse.com
>
parent
0c8508a6
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fs/btrfs/extent_io.c
fs/btrfs/extent_io.c
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fs/btrfs/extent_io.c
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b8b3d625
...
...
@@ -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
,
...
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