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

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This commit is contained in:
Chris Mason 2015-01-21 17:49:35 -08:00
commit 57bbddd7fb
13 changed files with 84 additions and 73 deletions
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13
fs/btrfs/ctree.c
View File

@ -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);
}

17
fs/btrfs/disk-io.c
View File

@ -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;

6
fs/btrfs/disk-io.h
View File

@ -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,

13
fs/btrfs/extent-tree.c
View File

@ -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,

34
fs/btrfs/extent_io.c
View File

@ -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 @@ free_eb:
#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;

7
fs/btrfs/extent_io.h
View File

@ -262,8 +262,9 @@ int get_state_private(struct extent_io_tree *tree, u64 start, u64 *private);
void set_page_extent_mapped(struct page *page);
struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info,
u64 start, unsigned long len);
struct extent_buffer *alloc_dummy_extent_buffer(u64 start, unsigned long len);
u64 start);
struct extent_buffer *alloc_dummy_extent_buffer(struct btrfs_fs_info *fs_info,
u64 start);
struct extent_buffer *btrfs_clone_extent_buffer(struct extent_buffer *src);
struct extent_buffer *find_extent_buffer(struct btrfs_fs_info *fs_info,
u64 start);
@ -377,5 +378,5 @@ noinline u64 find_lock_delalloc_range(struct inode *inode,
u64 *end, u64 max_bytes);
#endif
struct extent_buffer *alloc_test_extent_buffer(struct btrfs_fs_info *fs_info,
u64 start, unsigned long len);
u64 start);
#endif

15
fs/btrfs/reada.c
View File

@ -66,7 +66,6 @@ struct reada_extctl {
struct reada_extent {
u64 logical;
struct btrfs_key top;
u32 blocksize;
int err;
struct list_head extctl;
int refcnt;
@ -349,7 +348,6 @@ static struct reada_extent *reada_find_extent(struct btrfs_root *root,
blocksize = root->nodesize;
re->logical = logical;
re->blocksize = blocksize;
re->top = *top;
INIT_LIST_HEAD(&re->extctl);
spin_lock_init(&re->lock);
@ -660,7 +658,6 @@ static int reada_start_machine_dev(struct btrfs_fs_info *fs_info,
int mirror_num = 0;
struct extent_buffer *eb = NULL;
u64 logical;
u32 blocksize;
int ret;
int i;
int need_kick = 0;
@ -694,7 +691,7 @@ static int reada_start_machine_dev(struct btrfs_fs_info *fs_info,
spin_unlock(&fs_info->reada_lock);
return 0;
}
dev->reada_next = re->logical + re->blocksize;
dev->reada_next = re->logical + fs_info->tree_root->nodesize;
re->refcnt++;
spin_unlock(&fs_info->reada_lock);
@ -709,7 +706,6 @@ static int reada_start_machine_dev(struct btrfs_fs_info *fs_info,
}
}
logical = re->logical;
blocksize = re->blocksize;
spin_lock(&re->lock);
if (re->scheduled_for == NULL) {
@ -724,8 +720,8 @@ static int reada_start_machine_dev(struct btrfs_fs_info *fs_info,
return 0;
atomic_inc(&dev->reada_in_flight);
ret = reada_tree_block_flagged(fs_info->extent_root, logical, blocksize,
mirror_num, &eb);
ret = reada_tree_block_flagged(fs_info->extent_root, logical,
mirror_num, &eb);
if (ret)
__readahead_hook(fs_info->extent_root, NULL, logical, ret);
else if (eb)
@ -851,7 +847,7 @@ static void dump_devs(struct btrfs_fs_info *fs_info, int all)
break;
printk(KERN_DEBUG
" re: logical %llu size %u empty %d for %lld",
re->logical, re->blocksize,
re->logical, fs_info->tree_root->nodesize,
list_empty(&re->extctl), re->scheduled_for ?
re->scheduled_for->devid : -1);
@ -886,7 +882,8 @@ static void dump_devs(struct btrfs_fs_info *fs_info, int all)
}
printk(KERN_DEBUG
"re: logical %llu size %u list empty %d for %lld",
re->logical, re->blocksize, list_empty(&re->extctl),
re->logical, fs_info->tree_root->nodesize,
list_empty(&re->extctl),
re->scheduled_for ? re->scheduled_for->devid : -1);
for (i = 0; i < re->nzones; ++i) {
printk(KERN_CONT " zone %llu-%llu devs",

12
fs/btrfs/relocation.c
View File

@ -2855,9 +2855,10 @@ static void update_processed_blocks(struct reloc_control *rc,
}
}
static int tree_block_processed(u64 bytenr, u32 blocksize,
struct reloc_control *rc)
static int tree_block_processed(u64 bytenr, struct reloc_control *rc)
{
u32 blocksize = rc->extent_root->nodesize;
if (test_range_bit(&rc->processed_blocks, bytenr,
bytenr + blocksize - 1, EXTENT_DIRTY, 1, NULL))
return 1;
@ -2965,8 +2966,7 @@ int relocate_tree_blocks(struct btrfs_trans_handle *trans,
while (rb_node) {
block = rb_entry(rb_node, struct tree_block, rb_node);
if (!block->key_ready)
readahead_tree_block(rc->extent_root, block->bytenr,
block->key.objectid);
readahead_tree_block(rc->extent_root, block->bytenr);
rb_node = rb_next(rb_node);
}
@ -3353,7 +3353,7 @@ static int __add_tree_block(struct reloc_control *rc,
bool skinny = btrfs_fs_incompat(rc->extent_root->fs_info,
SKINNY_METADATA);
if (tree_block_processed(bytenr, blocksize, rc))
if (tree_block_processed(bytenr, rc))
return 0;
if (tree_search(blocks, bytenr))
@ -3611,7 +3611,7 @@ static int find_data_references(struct reloc_control *rc,
if (added)
goto next;
if (!tree_block_processed(leaf->start, leaf->len, rc)) {
if (!tree_block_processed(leaf->start, rc)) {
block = kmalloc(sizeof(*block), GFP_NOFS);
if (!block) {
err = -ENOMEM;

2
fs/btrfs/tests/extent-buffer-tests.c
View File

@ -53,7 +53,7 @@ static int test_btrfs_split_item(void)
return -ENOMEM;
}
path->nodes[0] = eb = alloc_dummy_extent_buffer(0, 4096);
path->nodes[0] = eb = alloc_dummy_extent_buffer(NULL, 4096);
if (!eb) {
test_msg("Could not allocate dummy buffer\n");
ret = -ENOMEM;

4
fs/btrfs/tests/inode-tests.c
View File

@ -255,7 +255,7 @@ static noinline int test_btrfs_get_extent(void)
goto out;
}
root->node = alloc_dummy_extent_buffer(0, 4096);
root->node = alloc_dummy_extent_buffer(NULL, 4096);
if (!root->node) {
test_msg("Couldn't allocate dummy buffer\n");
goto out;
@ -843,7 +843,7 @@ static int test_hole_first(void)
goto out;
}
root->node = alloc_dummy_extent_buffer(0, 4096);
root->node = alloc_dummy_extent_buffer(NULL, 4096);
if (!root->node) {
test_msg("Couldn't allocate dummy buffer\n");
goto out;

23
fs/btrfs/tests/qgroup-tests.c
View File

@ -404,12 +404,22 @@ int btrfs_test_qgroups(void)
ret = -ENOMEM;
goto out;
}
/* We are using this root as our extent root */
root->fs_info->extent_root = root;
/*
* Some of the paths we test assume we have a filled out fs_info, so we
* just need to add the root in there so we don't panic.
*/
root->fs_info->tree_root = root;
root->fs_info->quota_root = root;
root->fs_info->quota_enabled = 1;
/*
* Can't use bytenr 0, some things freak out
* *cough*backref walking code*cough*
*/
root->node = alloc_test_extent_buffer(root->fs_info, 4096, 4096);
root->node = alloc_test_extent_buffer(root->fs_info, 4096);
if (!root->node) {
test_msg("Couldn't allocate dummy buffer\n");
ret = -ENOMEM;
@ -448,17 +458,6 @@ int btrfs_test_qgroups(void)
goto out;
}
/* We are using this root as our extent root */
root->fs_info->extent_root = root;
/*
* Some of the paths we test assume we have a filled out fs_info, so we
* just need to addt he root in there so we don't panic.
*/
root->fs_info->tree_root = root;
root->fs_info->quota_root = root;
root->fs_info->quota_enabled = 1;
test_msg("Running qgroup tests\n");
ret = test_no_shared_qgroup(root);
if (ret)

2
fs/btrfs/tree-log.c
View File

@ -2165,7 +2165,7 @@ static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans,
parent = path->nodes[*level];
root_owner = btrfs_header_owner(parent);
next = btrfs_find_create_tree_block(root, bytenr, blocksize);
next = btrfs_find_create_tree_block(root, bytenr);
if (!next)
return -ENOMEM;

9
fs/btrfs/volumes.c
View File

@ -6247,8 +6247,13 @@ int btrfs_read_sys_array(struct btrfs_root *root)
u32 cur;
struct btrfs_key key;
sb = btrfs_find_create_tree_block(root, BTRFS_SUPER_INFO_OFFSET,
BTRFS_SUPER_INFO_SIZE);
ASSERT(BTRFS_SUPER_INFO_SIZE <= root->nodesize);
/*
* This will create extent buffer of nodesize, superblock size is
* fixed to BTRFS_SUPER_INFO_SIZE. If nodesize > sb size, this will
* overallocate but we can keep it as-is, only the first page is used.
*/
sb = btrfs_find_create_tree_block(root, BTRFS_SUPER_INFO_OFFSET);
if (!sb)
return -ENOMEM;
btrfs_set_buffer_uptodate(sb);