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-rw-r--r--fs/btrfs/extent-tree.c8
-rw-r--r--fs/btrfs/file-item.c2
-rw-r--r--fs/btrfs/transaction.c22
-rw-r--r--fs/btrfs/transaction.h1
4 files changed, 18 insertions, 15 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 3cde907a25a..ec0328bb86d 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3961,7 +3961,10 @@ static struct btrfs_block_rsv *get_block_rsv(
{
struct btrfs_block_rsv *block_rsv = NULL;
- if (root->ref_cows || root == root->fs_info->csum_root)
+ if (root->ref_cows)
+ block_rsv = trans->block_rsv;
+
+ if (root == root->fs_info->csum_root && trans->adding_csums)
block_rsv = trans->block_rsv;
if (!block_rsv)
@@ -4313,6 +4316,9 @@ static void release_global_block_rsv(struct btrfs_fs_info *fs_info)
void btrfs_trans_release_metadata(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
+ if (!trans->block_rsv)
+ return;
+
if (!trans->bytes_reserved)
return;
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 5d158d32023..863c34d111b 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -690,6 +690,7 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,
return -ENOMEM;
sector_sum = sums->sums;
+ trans->adding_csums = 1;
again:
next_offset = (u64)-1;
found_next = 0;
@@ -853,6 +854,7 @@ next_sector:
goto again;
}
out:
+ trans->adding_csums = 0;
btrfs_free_path(path);
return ret;
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index cb2dfe29394..328b95f6766 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -351,6 +351,7 @@ again:
h->bytes_reserved = 0;
h->delayed_ref_updates = 0;
h->use_count = 1;
+ h->adding_csums = 0;
h->block_rsv = NULL;
h->orig_rsv = NULL;
h->aborted = 0;
@@ -473,7 +474,6 @@ int btrfs_should_end_transaction(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
struct btrfs_transaction *cur_trans = trans->transaction;
- struct btrfs_block_rsv *rsv = trans->block_rsv;
int updates;
int err;
@@ -481,12 +481,6 @@ int btrfs_should_end_transaction(struct btrfs_trans_handle *trans,
if (cur_trans->blocked || cur_trans->delayed_refs.flushing)
return 1;
- /*
- * We need to do this in case we're deleting csums so the global block
- * rsv get's used instead of the csum block rsv.
- */
- trans->block_rsv = NULL;
-
updates = trans->delayed_ref_updates;
trans->delayed_ref_updates = 0;
if (updates) {
@@ -495,8 +489,6 @@ int btrfs_should_end_transaction(struct btrfs_trans_handle *trans,
return err;
}
- trans->block_rsv = rsv;
-
return should_end_transaction(trans, root);
}
@@ -513,8 +505,6 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans,
return 0;
}
- btrfs_trans_release_metadata(trans, root);
- trans->block_rsv = NULL;
while (count < 2) {
unsigned long cur = trans->delayed_ref_updates;
trans->delayed_ref_updates = 0;
@@ -527,6 +517,8 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans,
}
count++;
}
+ btrfs_trans_release_metadata(trans, root);
+ trans->block_rsv = NULL;
if (lock && !atomic_read(&root->fs_info->open_ioctl_trans) &&
should_end_transaction(trans, root)) {
@@ -1269,9 +1261,6 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
btrfs_run_ordered_operations(root, 0);
- btrfs_trans_release_metadata(trans, root);
- trans->block_rsv = NULL;
-
if (cur_trans->aborted)
goto cleanup_transaction;
@@ -1282,6 +1271,9 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
if (ret)
goto cleanup_transaction;
+ btrfs_trans_release_metadata(trans, root);
+ trans->block_rsv = NULL;
+
cur_trans = trans->transaction;
/*
@@ -1533,6 +1525,8 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
return ret;
cleanup_transaction:
+ btrfs_trans_release_metadata(trans, root);
+ trans->block_rsv = NULL;
btrfs_printk(root->fs_info, "Skipping commit of aborted transaction.\n");
// WARN_ON(1);
if (current->journal_info == trans)
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index fe27379e368..d314a74b496 100644
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -57,6 +57,7 @@ struct btrfs_trans_handle {
struct btrfs_block_rsv *block_rsv;
struct btrfs_block_rsv *orig_rsv;
int aborted;
+ int adding_csums;
};
struct btrfs_pending_snapshot {