Instead of collecting all ordered extents from the inode's ordered tree
and then wait for all of them to complete, just collect the ones that
overlap the fsync range.
Signed-off-by: Filipe Manana <fdmanana@xxxxxxxx>
---
fs/btrfs/ordered-data.c | 16 +++++++++++++---
fs/btrfs/ordered-data.h | 4 +++-
fs/btrfs/tree-log.c | 2 +-
3 files changed, 17 insertions(+), 5 deletions(-)
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 1401b1a..a45bb01 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -431,19 +431,29 @@ out:
/* Needs to either be called under a log transaction or the log_mutex */
void btrfs_get_logged_extents(struct inode *inode,
- struct list_head *logged_list)
+ struct list_head *logged_list,
+ const loff_t start,
+ const loff_t end)
{
struct btrfs_ordered_inode_tree *tree;
struct btrfs_ordered_extent *ordered;
struct rb_node *n;
+ struct rb_node *prev;
tree = &BTRFS_I(inode)->ordered_tree;
spin_lock_irq(&tree->lock);
- for (n = rb_first(&tree->tree); n; n = rb_next(n)) {
+ n = __tree_search(&tree->tree, end, &prev);
+ if (!n)
+ n = prev;
+ for (; n; n = rb_prev(n)) {
ordered = rb_entry(n, struct btrfs_ordered_extent, rb_node);
+ if (ordered->file_offset > end)
+ continue;
+ if (entry_end(ordered) <= start)
+ break;
if (!list_empty(&ordered->log_list))
continue;
- list_add_tail(&ordered->log_list, logged_list);
+ list_add(&ordered->log_list, logged_list);
atomic_inc(&ordered->refs);
}
spin_unlock_irq(&tree->lock);
diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h
index d81a274..fb51515 100644
--- a/fs/btrfs/ordered-data.h
+++ b/fs/btrfs/ordered-data.h
@@ -193,7 +193,9 @@ int btrfs_find_ordered_sum(struct inode *inode, u64 offset, u64 disk_bytenr,
int btrfs_wait_ordered_extents(struct btrfs_root *root, int nr);
void btrfs_wait_ordered_roots(struct btrfs_fs_info *fs_info, int nr);
void btrfs_get_logged_extents(struct inode *inode,
- struct list_head *logged_list);
+ struct list_head *logged_list,
+ const loff_t start,
+ const loff_t end);
void btrfs_put_logged_extents(struct list_head *logged_list);
void btrfs_submit_logged_extents(struct list_head *logged_list,
struct btrfs_root *log);
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index c8274d3..38f1ee9 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3972,7 +3972,7 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
mutex_lock(&BTRFS_I(inode)->log_mutex);
- btrfs_get_logged_extents(inode, &logged_list);
+ btrfs_get_logged_extents(inode, &logged_list, start, end);
/*
* a brute force approach to making sure we get the most uptodate
--
1.9.1
--
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