redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

btrfs: document more parameters of submit_extent_page

Browse source 
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2017-06-12 19:50:41 +02:00
parent 0c8508a6e7
commit b8b3d625ce
1 changed files with 12 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
fs/btrfs/extent_io.c
View file

@ -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,