diff options
| -rw-r--r-- | fs/btrfs/disk-io.c | 4 | ||||
| -rw-r--r-- | fs/btrfs/file.c | 3 |
2 files changed, 6 insertions, 1 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 8a74f90..de05525 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -214,6 +214,10 @@ static int btree_writepages(struct address_space *mapping, u64 num_dirty; u64 start = 0; unsigned long thresh = 96 * 1024 * 1024; + + if (wbc->for_kupdate) + return 0; + num_dirty = count_range_bits(tree, &start, thresh, EXTENT_DIRTY); if (num_dirty < thresh) { return 0; diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 9dd2c5c..ba624ae1 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -767,7 +767,8 @@ static ssize_t btrfs_file_write(struct file *file, const char __user *buf, num_written += write_bytes; balance_dirty_pages_ratelimited_nr(inode->i_mapping, num_pages); - btrfs_btree_balance_dirty(root, 1); + if (num_pages < (root->leafsize >> PAGE_CACHE_SHIFT) + 1) + btrfs_btree_balance_dirty(root, 1); cond_resched(); } mutex_unlock(&inode->i_mutex); |