diff options
| author | Christoph Hellwig <hch@lst.de> | 2014-09-03 04:28:00 (GMT) |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2014-09-10 19:47:04 (GMT) |
| commit | 20d655d6197d02e98574208839da11684dc2ad1f (patch) | |
| tree | 0212cbd41504909d6921db5a661a10058b7ab61c /fs/nfs/blocklayout/blocklayout.h | |
| parent | 30ff0603ca4d66c8244efc80ea8470d3d04aee8b (diff) | |
| download | linux-20d655d6197d02e98574208839da11684dc2ad1f.tar.xz | |
pnfs/blocklayout: use the device id cache
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/blocklayout/blocklayout.h')
| -rw-r--r-- | fs/nfs/blocklayout/blocklayout.h | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/fs/nfs/blocklayout/blocklayout.h b/fs/nfs/blocklayout/blocklayout.h index b4f66d8..19fae5e 100644 --- a/fs/nfs/blocklayout/blocklayout.h +++ b/fs/nfs/blocklayout/blocklayout.h @@ -44,16 +44,9 @@ #define PAGE_CACHE_SECTOR_SHIFT (PAGE_CACHE_SHIFT - SECTOR_SHIFT) #define SECTOR_SIZE (1 << SECTOR_SHIFT) -struct block_mount_id { - spinlock_t bm_lock; /* protects list */ - struct list_head bm_devlist; /* holds pnfs_block_dev */ -}; - struct pnfs_block_dev { - struct list_head bm_node; - struct nfs4_deviceid bm_mdevid; /* associated devid */ - struct block_device *bm_mdev; /* meta device itself */ - struct net *net; + struct nfs4_deviceid_node d_node; + struct block_device *d_bdev; }; enum exstate4 { @@ -69,8 +62,7 @@ struct pnfs_block_extent { struct rb_node be_node; struct list_head be_list; }; - struct nfs4_deviceid be_devid; /* FIXME: could use device cache instead */ - struct block_device *be_mdev; + struct nfs4_deviceid_node *be_device; sector_t be_f_offset; /* the starting offset in the file */ sector_t be_length; /* the size of the extent */ sector_t be_v_offset; /* the starting offset in the volume */ @@ -87,8 +79,6 @@ struct pnfs_block_layout { spinlock_t bl_ext_lock; /* Protects list manipulation */ }; -#define BLK_ID(lo) ((struct block_mount_id *)(NFS_SERVER(lo->plh_inode)->pnfs_ld_data)) - static inline struct pnfs_block_layout * BLK_LO2EXT(struct pnfs_layout_hdr *lo) { @@ -120,14 +110,15 @@ struct bl_msg_hdr { /* blocklayoutdev.c */ ssize_t bl_pipe_downcall(struct file *, const char __user *, size_t); void bl_pipe_destroy_msg(struct rpc_pipe_msg *); -void nfs4_blkdev_put(struct block_device *bdev); -struct pnfs_block_dev *nfs4_blk_decode_device(struct nfs_server *server, - struct pnfs_device *dev); int nfs4_blk_process_layoutget(struct pnfs_layout_hdr *lo, struct nfs4_layoutget_res *lgr, gfp_t gfp_flags); +struct nfs4_deviceid_node *bl_alloc_deviceid_node(struct nfs_server *server, + struct pnfs_device *pdev, gfp_t gfp_mask); +void bl_free_deviceid_node(struct nfs4_deviceid_node *d); + /* blocklayoutdm.c */ -void bl_free_block_dev(struct pnfs_block_dev *bdev); +void bl_dm_remove(struct net *net, dev_t dev); /* extent_tree.c */ int ext_tree_insert(struct pnfs_block_layout *bl, |