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Commit 57bbddd7 authored by Chris Mason's avatar Chris Mason
Browse files

Merge branch 'cleanup/blocksize-diet-part2' of... 

Merge branch 'cleanup/blocksize-diet-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus
parents d3541834 ce3e6984

fs/btrfs/ctree.c

+5 −8
Original line number Diff line number Diff line
@@ -1371,8 +1371,7 @@ tree_mod_log_rewind(struct btrfs_fs_info *fs_info, struct btrfs_path *path, 


	if (tm->op == MOD_LOG_KEY_REMOVE_WHILE_FREEING) {

		BUG_ON(tm->slot != 0);

		eb_rewin = alloc_dummy_extent_buffer(eb->start,

						fs_info->tree_root->nodesize);

		eb_rewin = alloc_dummy_extent_buffer(fs_info, eb->start);

		if (!eb_rewin) {

			btrfs_tree_read_unlock_blocking(eb);

			free_extent_buffer(eb);
@@ -1452,7 +1451,7 @@ get_old_root(struct btrfs_root *root, u64 time_seq) 
	} else if (old_root) {

		btrfs_tree_read_unlock(eb_root);

		free_extent_buffer(eb_root);

		eb = alloc_dummy_extent_buffer(logical, root->nodesize);

		eb = alloc_dummy_extent_buffer(root->fs_info, logical);

	} else {

		btrfs_set_lock_blocking_rw(eb_root, BTRFS_READ_LOCK);

		eb = btrfs_clone_extent_buffer(eb_root);
@@ -2290,7 +2289,7 @@ static void reada_for_search(struct btrfs_root *root, 
		if ((search <= target && target - search <= 65536) ||

		    (search > target && search - target <= 65536)) {

			gen = btrfs_node_ptr_generation(node, nr);

			readahead_tree_block(root, search, blocksize);

			readahead_tree_block(root, search);

			nread += blocksize;

		}

		nscan++;
@@ -2309,7 +2308,6 @@ static noinline void reada_for_balance(struct btrfs_root *root, 
	u64 gen;

	u64 block1 = 0;

	u64 block2 = 0;

	int blocksize;



	parent = path->nodes[level + 1];

	if (!parent)
@@ -2317,7 +2315,6 @@ static noinline void reada_for_balance(struct btrfs_root *root, 


	nritems = btrfs_header_nritems(parent);

	slot = path->slots[level + 1];

	blocksize = root->nodesize;



	if (slot > 0) {

		block1 = btrfs_node_blockptr(parent, slot - 1);
@@ -2342,9 +2339,9 @@ static noinline void reada_for_balance(struct btrfs_root *root, 
	}



	if (block1)

		readahead_tree_block(root, block1, blocksize);

		readahead_tree_block(root, block1);

	if (block2)

		readahead_tree_block(root, block2, blocksize);

		readahead_tree_block(root, block2);

}

fs/btrfs/disk-io.c

+8 −9
Original line number Diff line number Diff line
@@ -1073,12 +1073,12 @@ static const struct address_space_operations btree_aops = { 
	.set_page_dirty = btree_set_page_dirty,

};



void readahead_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize)

void readahead_tree_block(struct btrfs_root *root, u64 bytenr)

{

	struct extent_buffer *buf = NULL;

	struct inode *btree_inode = root->fs_info->btree_inode;



	buf = btrfs_find_create_tree_block(root, bytenr, blocksize);

	buf = btrfs_find_create_tree_block(root, bytenr);

	if (!buf)

		return;

	read_extent_buffer_pages(&BTRFS_I(btree_inode)->io_tree,
@@ -1086,7 +1086,7 @@ void readahead_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize) 
	free_extent_buffer(buf);

}



int reada_tree_block_flagged(struct btrfs_root *root, u64 bytenr, u32 blocksize,

int reada_tree_block_flagged(struct btrfs_root *root, u64 bytenr,

			 int mirror_num, struct extent_buffer **eb)

{

	struct extent_buffer *buf = NULL;
@@ -1094,7 +1094,7 @@ int reada_tree_block_flagged(struct btrfs_root *root, u64 bytenr, u32 blocksize, 
	struct extent_io_tree *io_tree = &BTRFS_I(btree_inode)->io_tree;

	int ret;



	buf = btrfs_find_create_tree_block(root, bytenr, blocksize);

	buf = btrfs_find_create_tree_block(root, bytenr);

	if (!buf)

		return 0;
@@ -1125,12 +1125,11 @@ struct extent_buffer *btrfs_find_tree_block(struct btrfs_root *root, 
}



struct extent_buffer *btrfs_find_create_tree_block(struct btrfs_root *root,

						 u64 bytenr, u32 blocksize)

						 u64 bytenr)

{

	if (btrfs_test_is_dummy_root(root))

		return alloc_test_extent_buffer(root->fs_info, bytenr,

						blocksize);

	return alloc_extent_buffer(root->fs_info, bytenr, blocksize);

		return alloc_test_extent_buffer(root->fs_info, bytenr);

	return alloc_extent_buffer(root->fs_info, bytenr);

}
@@ -1152,7 +1151,7 @@ struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr, 
	struct extent_buffer *buf = NULL;

	int ret;



	buf = btrfs_find_create_tree_block(root, bytenr, root->nodesize);

	buf = btrfs_find_create_tree_block(root, bytenr);

	if (!buf)

		return NULL;

fs/btrfs/disk-io.h

+3 −3
Original line number Diff line number Diff line
@@ -46,11 +46,11 @@ struct btrfs_fs_devices; 


struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,

				      u64 parent_transid);

void readahead_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize);

int reada_tree_block_flagged(struct btrfs_root *root, u64 bytenr, u32 blocksize,

void readahead_tree_block(struct btrfs_root *root, u64 bytenr);

int reada_tree_block_flagged(struct btrfs_root *root, u64 bytenr,

			 int mirror_num, struct extent_buffer **eb);

struct extent_buffer *btrfs_find_create_tree_block(struct btrfs_root *root,

						   u64 bytenr, u32 blocksize);

						   u64 bytenr);

void clean_tree_block(struct btrfs_trans_handle *trans,

		      struct btrfs_root *root, struct extent_buffer *buf);

int open_ctree(struct super_block *sb,

fs/btrfs/extent-tree.c

+6 −7
Original line number Diff line number Diff line
@@ -7149,11 +7149,11 @@ int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans, 


static struct extent_buffer *

btrfs_init_new_buffer(struct btrfs_trans_handle *trans, struct btrfs_root *root,

		      u64 bytenr, u32 blocksize, int level)

		      u64 bytenr, int level)

{

	struct extent_buffer *buf;



	buf = btrfs_find_create_tree_block(root, bytenr, blocksize);

	buf = btrfs_find_create_tree_block(root, bytenr);

	if (!buf)

		return ERR_PTR(-ENOMEM);

	btrfs_set_header_generation(buf, trans->transid);
@@ -7272,7 +7272,7 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans, 


	if (btrfs_test_is_dummy_root(root)) {

		buf = btrfs_init_new_buffer(trans, root, root->alloc_bytenr,

					    blocksize, level);

					    level);

		if (!IS_ERR(buf))

			root->alloc_bytenr += blocksize;

		return buf;
@@ -7289,8 +7289,7 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans, 
		return ERR_PTR(ret);

	}



	buf = btrfs_init_new_buffer(trans, root, ins.objectid,

				    blocksize, level);

	buf = btrfs_init_new_buffer(trans, root, ins.objectid, level);

	BUG_ON(IS_ERR(buf)); /* -ENOMEM */



	if (root_objectid == BTRFS_TREE_RELOC_OBJECTID) {
@@ -7419,7 +7418,7 @@ static noinline void reada_walk_down(struct btrfs_trans_handle *trans, 
				continue;

		}

reada:

		readahead_tree_block(root, bytenr, blocksize);

		readahead_tree_block(root, bytenr);

		nread++;

	}

	wc->reada_slot = slot;
@@ -7760,7 +7759,7 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans, 


	next = btrfs_find_tree_block(root, bytenr);

	if (!next) {

		next = btrfs_find_create_tree_block(root, bytenr, blocksize);

		next = btrfs_find_create_tree_block(root, bytenr);

		if (!next)

			return -ENOMEM;

		btrfs_set_buffer_lockdep_class(root->root_key.objectid, next,

fs/btrfs/extent_io.c

+24 −10
Original line number Diff line number Diff line
@@ -4598,11 +4598,11 @@ static inline void btrfs_release_extent_buffer(struct extent_buffer *eb) 


static struct extent_buffer *

__alloc_extent_buffer(struct btrfs_fs_info *fs_info, u64 start,

		      unsigned long len, gfp_t mask)

		      unsigned long len)

{

	struct extent_buffer *eb = NULL;



	eb = kmem_cache_zalloc(extent_buffer_cache, mask);

	eb = kmem_cache_zalloc(extent_buffer_cache, GFP_NOFS);

	if (eb == NULL)

		return NULL;

	eb->start = start;
@@ -4643,7 +4643,7 @@ struct extent_buffer *btrfs_clone_extent_buffer(struct extent_buffer *src) 
	struct extent_buffer *new;

	unsigned long num_pages = num_extent_pages(src->start, src->len);



	new = __alloc_extent_buffer(NULL, src->start, src->len, GFP_NOFS);

	new = __alloc_extent_buffer(src->fs_info, src->start, src->len);

	if (new == NULL)

		return NULL;
@@ -4666,13 +4666,26 @@ struct extent_buffer *btrfs_clone_extent_buffer(struct extent_buffer *src) 
	return new;

}



struct extent_buffer *alloc_dummy_extent_buffer(u64 start, unsigned long len)

struct extent_buffer *alloc_dummy_extent_buffer(struct btrfs_fs_info *fs_info,

						u64 start)

{

	struct extent_buffer *eb;

	unsigned long num_pages = num_extent_pages(0, len);

	unsigned long len;

	unsigned long num_pages;

	unsigned long i;



	eb = __alloc_extent_buffer(NULL, start, len, GFP_NOFS);

	if (!fs_info) {

		/*

		 * Called only from tests that don't always have a fs_info

		 * available, but we know that nodesize is 4096

		 */

		len = 4096;

	} else {

		len = fs_info->tree_root->nodesize;

	}

	num_pages = num_extent_pages(0, len);



	eb = __alloc_extent_buffer(fs_info, start, len);

	if (!eb)

		return NULL;
@@ -4762,7 +4775,7 @@ struct extent_buffer *find_extent_buffer(struct btrfs_fs_info *fs_info, 


#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS

struct extent_buffer *alloc_test_extent_buffer(struct btrfs_fs_info *fs_info,

					       u64 start, unsigned long len)

					       u64 start)

{

	struct extent_buffer *eb, *exists = NULL;

	int ret;
@@ -4770,7 +4783,7 @@ struct extent_buffer *alloc_test_extent_buffer(struct btrfs_fs_info *fs_info, 
	eb = find_extent_buffer(fs_info, start);

	if (eb)

		return eb;

	eb = alloc_dummy_extent_buffer(start, len);

	eb = alloc_dummy_extent_buffer(fs_info, start);

	if (!eb)

		return NULL;

	eb->fs_info = fs_info;
@@ -4808,8 +4821,9 @@ struct extent_buffer *alloc_test_extent_buffer(struct btrfs_fs_info *fs_info, 
#endif



struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info,

					  u64 start, unsigned long len)

					  u64 start)

{

	unsigned long len = fs_info->tree_root->nodesize;

	unsigned long num_pages = num_extent_pages(start, len);

	unsigned long i;

	unsigned long index = start >> PAGE_CACHE_SHIFT;
@@ -4824,7 +4838,7 @@ struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info, 
	if (eb)

		return eb;



	eb = __alloc_extent_buffer(fs_info, start, len, GFP_NOFS);

	eb = __alloc_extent_buffer(fs_info, start, len);

	if (!eb)

		return NULL;