Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs...

[pandora-kernel.git] / fs / btrfs / ctree.h

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 8f98c20..3006287 100644 (file)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -967,6 +967,12 @@ struct btrfs_fs_info {
        struct srcu_struct subvol_srcu;
 
        spinlock_t trans_lock;
+       /*
+        * the reloc mutex goes with the trans lock, it is taken
+        * during commit to protect us from the relocation code
+        */
+       struct mutex reloc_mutex;
+
        struct list_head trans_list;
        struct list_head hashers;
        struct list_head dead_roots;
@@ -1172,6 +1178,14 @@ struct btrfs_root {
        u32 type;
 
        u64 highest_objectid;
+
+       /* btrfs_record_root_in_trans is a multi-step process,
+        * and it can race with the balancing code.   But the
+        * race is very small, and only the first time the root
+        * is added to each transaction.  So in_trans_setup
+        * is used to tell us when more checks are required
+        */
+       unsigned long in_trans_setup;
        int ref_cows;
        int track_dirty;
        int in_radix;
@@ -1181,7 +1195,6 @@ struct btrfs_root {
        struct btrfs_key defrag_max;
        int defrag_running;
        char *name;
-       int in_sysfs;
 
        /* the dirty list is only used by non-reference counted roots */
        struct list_head dirty_list;
@@ -1340,6 +1353,7 @@ struct btrfs_ioctl_defrag_range_args {
 #define BTRFS_MOUNT_USER_SUBVOL_RM_ALLOWED (1 << 14)
 #define BTRFS_MOUNT_ENOSPC_DEBUG        (1 << 15)
 #define BTRFS_MOUNT_AUTO_DEFRAG                (1 << 16)
+#define BTRFS_MOUNT_INODE_MAP_CACHE    (1 << 17)
 
 #define btrfs_clear_opt(o, opt)                ((o) &= ~BTRFS_MOUNT_##opt)
 #define btrfs_set_opt(o, opt)          ((o) |= BTRFS_MOUNT_##opt)
@@ -2353,6 +2367,15 @@ int btrfs_drop_subtree(struct btrfs_trans_handle *trans,
                        struct btrfs_root *root,
                        struct extent_buffer *node,
                        struct extent_buffer *parent);
+static inline int btrfs_fs_closing(struct btrfs_fs_info *fs_info)
+{
+       /*
+        * Get synced with close_ctree()
+        */
+       smp_mb();
+       return fs_info->closing;
+}
+
 /* root-item.c */
 int btrfs_find_root_ref(struct btrfs_root *tree_root,
                        struct btrfs_path *path,
@@ -2526,7 +2549,7 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf);
 int btrfs_readpage(struct file *file, struct page *page);
 void btrfs_evict_inode(struct inode *inode);
 int btrfs_write_inode(struct inode *inode, struct writeback_control *wbc);
-void btrfs_dirty_inode(struct inode *inode);
+void btrfs_dirty_inode(struct inode *inode, int flags);
 struct inode *btrfs_alloc_inode(struct super_block *sb);
 void btrfs_destroy_inode(struct inode *inode);
 int btrfs_drop_inode(struct inode *inode);