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| author | Chris Mason <chris.mason@oracle.com> | 2008-05-09 19:52:25 +0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 19:04:03 +0400 |
| commit | 188de649c51f03df3f8a601aea0110a3870815c2 (patch) | |
| tree | 737a1c92ee19182807c89ee170f07e68e6296834 | |
| parent | 323da79c9f096ed4da04e5ea00f766f75b28aeaa (diff) | |
| download | linux-188de649c51f03df3f8a601aea0110a3870815c2.tar.xz | |
Btrfs: Don't do btree balance_dirty_pages on old kernels, it stalls forever
Signed-off-by: Chris Mason <chris.mason@oracle.com>
| -rw-r--r-- | fs/btrfs/disk-io.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 9d5424ad01a3..c3083165b172 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1655,6 +1655,11 @@ void btrfs_throttle(struct btrfs_root *root) void btrfs_btree_balance_dirty(struct btrfs_root *root, unsigned long nr) { + /* + * looks as though older kernels can get into trouble with + * this code, they end up stuck in balance_dirty_pages forever + */ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) struct extent_io_tree *tree; u64 num_dirty; u64 start = 0; @@ -1670,6 +1675,9 @@ void btrfs_btree_balance_dirty(struct btrfs_root *root, unsigned long nr) balance_dirty_pages_ratelimited_nr( root->fs_info->btree_inode->i_mapping, 1); } +#else + return; +#endif } void btrfs_set_buffer_defrag(struct extent_buffer *buf) |