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-rw-r--r--fs/btrfs/file-item.c8
-rw-r--r--fs/btrfs/inode.c2
-rw-r--r--fs/btrfs/ordered-data.c2
-rw-r--r--fs/btrfs/ordered-data.h2
-rw-r--r--fs/btrfs/transaction.c3
5 files changed, 12 insertions, 5 deletions
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 45127e4797c8..afe42d00b5a6 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -152,7 +152,7 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
if (!sums)
return -ENOMEM;
- sector_sum = &sums->sums;
+ sector_sum = sums->sums;
sums->file_offset = page_offset(bvec->bv_page) + bvec->bv_offset;
sums->len = bio->bi_size;
INIT_LIST_HEAD(&sums->list);
@@ -174,7 +174,7 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
sums = kzalloc(btrfs_ordered_sum_size(root, bytes_left),
GFP_NOFS);
BUG_ON(!sums);
- sector_sum = &sums->sums;
+ sector_sum = sums->sums;
sums->len = bytes_left;
sums->file_offset = offset;
ordered = btrfs_lookup_ordered_extent(inode,
@@ -193,12 +193,14 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
(char *)&sector_sum->sum);
sector_sum->offset = page_offset(bvec->bv_page) +
bvec->bv_offset;
+
sector_sum++;
bio_index++;
total_bytes += bvec->bv_len;
this_sum_bytes += bvec->bv_len;
bvec++;
}
+ this_sum_bytes = 0;
btrfs_add_ordered_sum(inode, ordered, sums);
btrfs_put_ordered_extent(ordered);
return 0;
@@ -231,7 +233,7 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,
path = btrfs_alloc_path();
BUG_ON(!path);
- sector_sum = &sums->sums;
+ sector_sum = sums->sums;
again:
next_offset = (u64)-1;
found_next = 0;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 3da12a4d913d..28e667052ec3 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -612,6 +612,7 @@ int btrfs_readpage_io_hook(struct page *page, u64 start, u64 end)
return 0;
path = btrfs_alloc_path();
+ mutex_lock(&BTRFS_I(inode)->csum_mutex);
item = btrfs_lookup_csum(NULL, root, path, inode->i_ino, start, 0);
if (IS_ERR(item)) {
/*
@@ -640,6 +641,7 @@ int btrfs_readpage_io_hook(struct page *page, u64 start, u64 end)
found:
set_state_private(io_tree, start, csum);
out:
+ mutex_unlock(&BTRFS_I(inode)->csum_mutex);
if (path)
btrfs_free_path(path);
return ret;
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 830dbaea6853..b695f5b29c45 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -545,7 +545,7 @@ int btrfs_find_ordered_sum(struct inode *inode, u64 offset, u32 *sum)
ordered_sum = list_entry(cur, struct btrfs_ordered_sum, list);
if (offset >= ordered_sum->file_offset) {
num_sectors = ordered_sum->len / sectorsize;
- sector_sums = &ordered_sum->sums;
+ sector_sums = ordered_sum->sums;
for (i = 0; i < num_sectors; i++) {
if (sector_sums[i].offset == offset) {
*sum = sector_sums[i].sum;
diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h
index 8e8e3c0404f3..36e63f1f79b3 100644
--- a/fs/btrfs/ordered-data.h
+++ b/fs/btrfs/ordered-data.h
@@ -46,7 +46,7 @@ struct btrfs_ordered_sum {
unsigned long len;
struct list_head list;
/* last field is a variable length array of btrfs_sector_sums */
- struct btrfs_sector_sum sums;
+ struct btrfs_sector_sum sums[];
};
/*
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 38c75a0256cb..0f756e0175c0 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -382,6 +382,9 @@ static noinline int add_dirty_roots(struct btrfs_trans_handle *trans,
memcpy(dirty->root, root, sizeof(*root));
dirty->root->node = root->commit_root;
dirty->latest_root = root;
+ spin_lock_init(&dirty->root->node_lock);
+ mutex_init(&dirty->root->objectid_mutex);
+
root->commit_root = NULL;
root->root_key.offset = root->fs_info->generation;