Commit d3fac6ba authored by Nikolay Borisov's avatar Nikolay Borisov Committed by David Sterba
Browse files

btrfs: Remove redundant mirror_num arg 



The following callpath is always invoked with mirror_num set to 0, so
let's remove it as an argument and directly pass 0 to __do_redpage. No
functional change.

extent_readpages
  __extent_readpages
    __do_contiguous_readpages
      __do_readpage

Signed-off-by: default avatarNikolay Borisov <nborisov@suse.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent ac244ef1

fs/btrfs/extent_io.c

+7 −9
Original line number Diff line number Diff line
@@ -3094,7 +3094,7 @@ static inline void __do_contiguous_readpages(struct extent_io_tree *tree, 
					     u64 start, u64 end,

					     get_extent_t *get_extent,

					     struct extent_map **em_cached,

					     struct bio **bio, int mirror_num,

					     struct bio **bio,

					     unsigned long *bio_flags,

					     u64 *prev_em_start)

{
@@ -3116,7 +3116,7 @@ static inline void __do_contiguous_readpages(struct extent_io_tree *tree, 


	for (index = 0; index < nr_pages; index++) {

		__do_readpage(tree, pages[index], get_extent, em_cached, bio,

			      mirror_num, bio_flags, 0, prev_em_start);

			      0, bio_flags, 0, prev_em_start);

		put_page(pages[index]);

	}

}
@@ -3125,8 +3125,7 @@ static void __extent_readpages(struct extent_io_tree *tree, 
			       struct page *pages[],

			       int nr_pages, get_extent_t *get_extent,

			       struct extent_map **em_cached,

			       struct bio **bio, int mirror_num,

			       unsigned long *bio_flags,

			       struct bio **bio, unsigned long *bio_flags,

			       u64 *prev_em_start)

{

	u64 start = 0;
@@ -3147,7 +3146,7 @@ static void __extent_readpages(struct extent_io_tree *tree, 
			__do_contiguous_readpages(tree, &pages[first_index],

						  index - first_index, start,

						  end, get_extent, em_cached,

						  bio, mirror_num, bio_flags,

						  bio, bio_flags,

						  prev_em_start);

			start = page_start;

			end = start + PAGE_SIZE - 1;
@@ -3159,8 +3158,7 @@ static void __extent_readpages(struct extent_io_tree *tree, 
		__do_contiguous_readpages(tree, &pages[first_index],

					  index - first_index, start,

					  end, get_extent, em_cached, bio,

					  mirror_num, bio_flags,

					  prev_em_start);

					  bio_flags, prev_em_start);

}



static int __extent_read_full_page(struct extent_io_tree *tree,
@@ -4171,12 +4169,12 @@ int extent_readpages(struct extent_io_tree *tree, 
		if (nr < ARRAY_SIZE(pagepool))

			continue;

		__extent_readpages(tree, pagepool, nr, get_extent, &em_cached,

				   &bio, 0, &bio_flags, &prev_em_start);

				   &bio, &bio_flags, &prev_em_start);

		nr = 0;

	}

	if (nr)

		__extent_readpages(tree, pagepool, nr, get_extent, &em_cached,

				   &bio, 0, &bio_flags, &prev_em_start);

				   &bio, &bio_flags, &prev_em_start);



	if (em_cached)

		free_extent_map(em_cached);

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