wait_for_snapshot_creation() is in same group with oher two:
btrfs_start_write_no_snapshoting()
btrfs_end_write_no_snapshoting()
Rename wait_for_snapshot_creation() and move it into same place
with other two.
Signed-off-by: Zhao Lei <zhao...@cn.fujitsu.com>
---
fs/btrfs/ctree.h | 1 +
fs/btrfs/extent-tree.c | 20 ++++++++++++++++++++
fs/btrfs/inode.c | 22 +---------------------
3 files changed, 22 insertions(+), 21 deletions(-)
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 0912f89..5d7a2c4d 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3566,6 +3566,7 @@ int btrfs_delayed_refs_qgroup_accounting(struct
btrfs_trans_handle *trans,
int __get_raid_index(u64 flags);
int btrfs_start_write_no_snapshoting(struct btrfs_root *root);
void btrfs_end_write_no_snapshoting(struct btrfs_root *root);
+void btrfs_wait_for_snapshot_creation(struct btrfs_root *root);
void check_system_chunk(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
const u64 type);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index dc3763a..e83ffa8 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -10704,3 +10704,23 @@ int btrfs_start_write_no_snapshoting(struct btrfs_root
*root)
}
return 1;
}
+
+static int wait_snapshoting_atomic_t(atomic_t *a)
+{
+ schedule();
+ return 0;
+}
+
+void btrfs_wait_for_snapshot_creation(struct btrfs_root *root)
+{
+ while (true) {
+ int ret;
+
+ ret = btrfs_start_write_no_snapshoting(root);
+ if (ret)
+ break;
+ wait_on_atomic_t(&root->will_be_snapshoted,
+ wait_snapshoting_atomic_t,
+ TASK_UNINTERRUPTIBLE);
+ }
+}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 994490d..21d7cd1 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4897,26 +4897,6 @@ next:
return err;
}
-static int wait_snapshoting_atomic_t(atomic_t *a)
-{
- schedule();
- return 0;
-}
-
-static void wait_for_snapshot_creation(struct btrfs_root *root)
-{
- while (true) {
- int ret;
-
- ret = btrfs_start_write_no_snapshoting(root);
- if (ret)
- break;
- wait_on_atomic_t(&root->will_be_snapshoted,
- wait_snapshoting_atomic_t,
- TASK_UNINTERRUPTIBLE);
- }
-}
-
static int btrfs_setsize(struct inode *inode, struct iattr *attr)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
@@ -4948,7 +4928,7 @@ static int btrfs_setsize(struct inode *inode, struct
iattr *attr)
* truncation, it must capture all writes that happened before
* this truncation.
*/
- wait_for_snapshot_creation(root);
+ btrfs_wait_for_snapshot_creation(root);
ret = btrfs_cont_expand(inode, oldsize, newsize);
if (ret) {
btrfs_end_write_no_snapshoting(root);
--
1.8.5.1
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