diff options
| -rw-r--r-- | fs/btrfs/ctree.h | 2 | ||||
| -rw-r--r-- | fs/btrfs/disk-io.c | 5 | ||||
| -rw-r--r-- | fs/btrfs/extent-tree.c | 9 | ||||
| -rw-r--r-- | fs/btrfs/inode.c | 2 |
4 files changed, 10 insertions, 8 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index c5f40dc1f74f..e9c2f8895eab 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1614,7 +1614,7 @@ struct btrfs_fs_info { spinlock_t delayed_iput_lock; struct list_head delayed_iputs; - struct rw_semaphore delayed_iput_sem; + struct mutex cleaner_delayed_iput_mutex; /* this protects tree_mod_seq_list */ spinlock_t tree_mod_seq_lock; diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 64f02c3d0dd0..be03f93ca257 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1801,7 +1801,10 @@ static int cleaner_kthread(void *arg) goto sleep; } + mutex_lock(&root->fs_info->cleaner_delayed_iput_mutex); btrfs_run_delayed_iputs(root); + mutex_unlock(&root->fs_info->cleaner_delayed_iput_mutex); + again = btrfs_clean_one_deleted_snapshot(root); mutex_unlock(&root->fs_info->cleaner_mutex); @@ -2571,8 +2574,8 @@ int open_ctree(struct super_block *sb, mutex_init(&fs_info->delete_unused_bgs_mutex); mutex_init(&fs_info->reloc_mutex); mutex_init(&fs_info->delalloc_root_mutex); + mutex_init(&fs_info->cleaner_delayed_iput_mutex); seqlock_init(&fs_info->profiles_lock); - init_rwsem(&fs_info->delayed_iput_sem); INIT_LIST_HEAD(&fs_info->dirty_cowonly_roots); INIT_LIST_HEAD(&fs_info->space_info); diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 92843ab772a5..abcffa4b8231 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -4153,11 +4153,12 @@ commit_trans: if (ret) return ret; /* - * make sure that all running delayed iput are - * done + * The cleaner kthread might still be doing iput + * operations. Wait for it to finish so that + * more space is released. */ - down_write(&root->fs_info->delayed_iput_sem); - up_write(&root->fs_info->delayed_iput_sem); + mutex_lock(&root->fs_info->cleaner_delayed_iput_mutex); + mutex_unlock(&root->fs_info->cleaner_delayed_iput_mutex); goto again; } else { btrfs_end_transaction(trans, root); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 85afe66955cf..8ad9e2200442 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3134,7 +3134,6 @@ void btrfs_run_delayed_iputs(struct btrfs_root *root) { struct btrfs_fs_info *fs_info = root->fs_info; - down_read(&fs_info->delayed_iput_sem); spin_lock(&fs_info->delayed_iput_lock); while (!list_empty(&fs_info->delayed_iputs)) { struct btrfs_inode *inode; @@ -3153,7 +3152,6 @@ void btrfs_run_delayed_iputs(struct btrfs_root *root) spin_lock(&fs_info->delayed_iput_lock); } spin_unlock(&fs_info->delayed_iput_lock); - up_read(&root->fs_info->delayed_iput_sem); } /* |