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authorJeff Mahoney <jeffm@suse.com>2016-06-15 16:22:56 +0300
committerDavid Sterba <dsterba@suse.com>2016-12-06 18:06:58 +0300
commitda17066c40472c2d6a1aab7bb0090c3d285531c9 (patch)
treef51910799ffea3bfe5af34d009a2967b9e99e6ad /fs/btrfs/file-item.c
parentf15376df0dc2b632eb689793a73d4adba8404987 (diff)
downloadlinux-da17066c40472c2d6a1aab7bb0090c3d285531c9.tar.xz
btrfs: pull node/sector/stripe sizes out of root and into fs_info
We track the node sizes per-root, but they never vary from the values in the superblock. This patch messes with the 80-column style a bit, but subsequent patches to factor out root->fs_info into a convenience variable fix it up again. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/file-item.c')
-rw-r--r--fs/btrfs/file-item.c59
1 files changed, 31 insertions, 28 deletions
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 41c1145cbce1..5349e8e9bbaa 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -34,9 +34,9 @@
#define MAX_CSUM_ITEMS(r, size) (min_t(u32, __MAX_CSUM_ITEMS(r, size), \
PAGE_SIZE))
-#define MAX_ORDERED_SUM_BYTES(r) ((PAGE_SIZE - \
+#define MAX_ORDERED_SUM_BYTES(fs_info) ((PAGE_SIZE - \
sizeof(struct btrfs_ordered_sum)) / \
- sizeof(u32) * (r)->sectorsize)
+ sizeof(u32) * (fs_info)->sectorsize)
int btrfs_insert_file_extent(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
@@ -249,7 +249,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
if (BTRFS_I(inode)->root->root_key.objectid ==
BTRFS_DATA_RELOC_TREE_OBJECTID) {
set_extent_bits(io_tree, offset,
- offset + root->sectorsize - 1,
+ offset + root->fs_info->sectorsize - 1,
EXTENT_NODATASUM);
} else {
btrfs_info_rl(BTRFS_I(inode)->root->fs_info,
@@ -268,7 +268,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
path->slots[0]);
item_last_offset = item_start_offset +
(item_size / csum_size) *
- root->sectorsize;
+ root->fs_info->sectorsize;
item = btrfs_item_ptr(path->nodes[0], path->slots[0],
struct btrfs_csum_item);
}
@@ -277,7 +277,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
* a single leaf so it will also fit inside a u32
*/
diff = disk_bytenr - item_start_offset;
- diff = diff / root->sectorsize;
+ diff = diff / root->fs_info->sectorsize;
diff = diff * csum_size;
count = min_t(int, nblocks, (item_last_offset - disk_bytenr) >>
inode->i_sb->s_blocksize_bits);
@@ -289,9 +289,9 @@ found:
nblocks -= count;
next:
while (count--) {
- disk_bytenr += root->sectorsize;
- offset += root->sectorsize;
- page_bytes_left -= root->sectorsize;
+ disk_bytenr += root->fs_info->sectorsize;
+ offset += root->fs_info->sectorsize;
+ page_bytes_left -= root->fs_info->sectorsize;
if (!page_bytes_left)
break; /* move to next bio */
}
@@ -329,8 +329,8 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
u64 csum_end;
u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy);
- ASSERT(IS_ALIGNED(start, root->sectorsize) &&
- IS_ALIGNED(end + 1, root->sectorsize));
+ ASSERT(IS_ALIGNED(start, root->fs_info->sectorsize) &&
+ IS_ALIGNED(end + 1, root->fs_info->sectorsize));
path = btrfs_alloc_path();
if (!path)
@@ -383,7 +383,7 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
start = key.offset;
size = btrfs_item_size_nr(leaf, path->slots[0]);
- csum_end = key.offset + (size / csum_size) * root->sectorsize;
+ csum_end = key.offset + (size / csum_size) * root->fs_info->sectorsize;
if (csum_end <= start) {
path->slots[0]++;
continue;
@@ -394,8 +394,9 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
struct btrfs_csum_item);
while (start < csum_end) {
size = min_t(size_t, csum_end - start,
- MAX_ORDERED_SUM_BYTES(root));
- sums = kzalloc(btrfs_ordered_sum_size(root, size),
+ MAX_ORDERED_SUM_BYTES(root->fs_info));
+ sums = kzalloc(btrfs_ordered_sum_size(root->fs_info,
+ size),
GFP_NOFS);
if (!sums) {
ret = -ENOMEM;
@@ -415,7 +416,7 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
((unsigned long)item) + offset,
csum_size * size);
- start += root->sectorsize * size;
+ start += root->fs_info->sectorsize * size;
list_add_tail(&sums->list, &tmplist);
}
path->slots[0]++;
@@ -448,7 +449,8 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
u64 offset;
WARN_ON(bio->bi_vcnt <= 0);
- sums = kzalloc(btrfs_ordered_sum_size(root, bio->bi_iter.bi_size),
+ sums = kzalloc(btrfs_ordered_sum_size(root->fs_info,
+ bio->bi_iter.bi_size),
GFP_NOFS);
if (!sums)
return -ENOMEM;
@@ -476,7 +478,7 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
data = kmap_atomic(bvec->bv_page);
nr_sectors = BTRFS_BYTES_TO_BLKS(root->fs_info,
- bvec->bv_len + root->sectorsize
+ bvec->bv_len + root->fs_info->sectorsize
- 1);
for (i = 0; i < nr_sectors; i++) {
@@ -492,7 +494,7 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
bytes_left = bio->bi_iter.bi_size - total_bytes;
- sums = kzalloc(btrfs_ordered_sum_size(root, bytes_left),
+ sums = kzalloc(btrfs_ordered_sum_size(root->fs_info, bytes_left),
GFP_NOFS);
BUG_ON(!sums); /* -ENOMEM */
sums->len = bytes_left;
@@ -509,15 +511,15 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
sums->sums[index] = ~(u32)0;
sums->sums[index]
= btrfs_csum_data(data + bvec->bv_offset
- + (i * root->sectorsize),
+ + (i * root->fs_info->sectorsize),
sums->sums[index],
- root->sectorsize);
+ root->fs_info->sectorsize);
btrfs_csum_final(sums->sums[index],
(char *)(sums->sums + index));
index++;
- offset += root->sectorsize;
- this_sum_bytes += root->sectorsize;
- total_bytes += root->sectorsize;
+ offset += root->fs_info->sectorsize;
+ this_sum_bytes += root->fs_info->sectorsize;
+ total_bytes += root->fs_info->sectorsize;
}
kunmap_atomic(data);
@@ -757,7 +759,7 @@ again:
leaf = path->nodes[0];
item_size = btrfs_item_size_nr(leaf, path->slots[0]);
if ((item_size / csum_size) >=
- MAX_CSUM_ITEMS(root, csum_size)) {
+ MAX_CSUM_ITEMS(root->fs_info, csum_size)) {
/* already at max size, make a new one */
goto insert;
}
@@ -807,7 +809,7 @@ again:
if (found_key.type != BTRFS_EXTENT_CSUM_KEY ||
found_key.objectid != BTRFS_EXTENT_CSUM_OBJECTID ||
- csum_offset >= MAX_CSUM_ITEMS(root, csum_size)) {
+ csum_offset >= MAX_CSUM_ITEMS(root->fs_info, csum_size)) {
goto insert;
}
@@ -830,7 +832,7 @@ again:
extend_nr = max_t(int, 1, (int)tmp);
diff = (csum_offset + extend_nr) * csum_size;
- diff = min(diff, MAX_CSUM_ITEMS(root, csum_size) * csum_size);
+ diff = min(diff, MAX_CSUM_ITEMS(root->fs_info, csum_size) * csum_size);
diff = diff - btrfs_item_size_nr(leaf, path->slots[0]);
diff = min(free_space, diff);
@@ -854,7 +856,7 @@ insert:
root->fs_info->sb->s_blocksize_bits);
tmp = max((u64)1, tmp);
- tmp = min(tmp, (u64)MAX_CSUM_ITEMS(root, csum_size));
+ tmp = min(tmp, (u64)MAX_CSUM_ITEMS(root->fs_info, csum_size));
ins_size = csum_size * tmp;
} else {
ins_size = csum_size;
@@ -884,7 +886,7 @@ found:
ins_size);
ins_size /= csum_size;
- total_bytes += ins_size * root->sectorsize;
+ total_bytes += ins_size * root->fs_info->sectorsize;
index += ins_size;
btrfs_mark_buffer_dirty(path->nodes[0]);
@@ -927,7 +929,8 @@ void btrfs_extent_item_to_extent_map(struct inode *inode,
} else if (type == BTRFS_FILE_EXTENT_INLINE) {
size_t size;
size = btrfs_file_extent_inline_len(leaf, slot, fi);
- extent_end = ALIGN(extent_start + size, root->sectorsize);
+ extent_end = ALIGN(extent_start + size,
+ root->fs_info->sectorsize);
}
em->ram_bytes = btrfs_file_extent_ram_bytes(leaf, fi);