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Btrfs: Replace the transaction work queue with kthreads

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This creates one kthread for commits and one kthread for
deleting old snapshots.  All the work queues are removed.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2008-06-25 16:01:31 -04:00
parent 89ce8a63d0
commit a74a4b97b6
8 changed files with 136 additions and 118 deletions
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13
fs/btrfs/ctree.h
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@@ -23,7 +23,6 @@
#include <linux/mm.h>
#include <linux/highmem.h>
#include <linux/fs.h>
#include <linux/workqueue.h>
#include <linux/completion.h>
#include <linux/backing-dev.h>
#include <asm/kmap_types.h>
@@ -519,15 +518,14 @@ struct btrfs_fs_info {
struct backing_dev_info bdi;
spinlock_t hash_lock;
struct mutex trans_mutex;
struct mutex transaction_kthread_mutex;
struct mutex cleaner_mutex;
struct mutex alloc_mutex;
struct mutex chunk_mutex;
struct mutex drop_mutex;
struct list_head trans_list;
struct list_head hashers;
struct list_head dead_roots;
struct list_head end_io_work_list;
struct work_struct end_io_work;
spinlock_t end_io_work_lock;
atomic_t nr_async_submits;
/*
@@ -543,13 +541,10 @@ struct btrfs_fs_info {
struct btrfs_workers workers;
struct btrfs_workers endio_workers;
struct btrfs_workers submit_workers;
struct task_struct *transaction_kthread;
struct task_struct *cleaner_kthread;
int thread_pool_size;
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,18)
struct work_struct trans_work;
#else
struct delayed_work trans_work;
#endif
struct kobject super_kobj;
struct completion kobj_unregister;
int do_barriers;