diff options
Diffstat (limited to 'fs/nfs/blocklayout/blocklayout.h')
| -rw-r--r-- | fs/nfs/blocklayout/blocklayout.h | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/fs/nfs/blocklayout/blocklayout.h b/fs/nfs/blocklayout/blocklayout.h index 42acf7ef599..9838fb02047 100644 --- a/fs/nfs/blocklayout/blocklayout.h +++ b/fs/nfs/blocklayout/blocklayout.h @@ -36,10 +36,13 @@ #include <linux/nfs_fs.h> #include <linux/sunrpc/rpc_pipe_fs.h> +#include "../nfs4_fs.h" #include "../pnfs.h" +#include "../netns.h" #define PAGE_CACHE_SECTORS (PAGE_CACHE_SIZE >> SECTOR_SHIFT) #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 */ @@ -50,6 +53,7 @@ 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; }; enum exstate4 { @@ -70,6 +74,7 @@ struct pnfs_inval_markings { spinlock_t im_lock; struct my_tree im_tree; /* Sectors that need LAYOUTCOMMIT */ sector_t im_block_size; /* Server blocksize in sectors */ + struct list_head im_extents; /* Short extents for INVAL->RW conversion */ }; struct pnfs_inval_tracking { @@ -105,6 +110,7 @@ BL_INIT_INVAL_MARKS(struct pnfs_inval_markings *marks, sector_t blocksize) { spin_lock_init(&marks->im_lock); INIT_LIST_HEAD(&marks->im_tree.mtt_stub); + INIT_LIST_HEAD(&marks->im_extents); marks->im_block_size = blocksize; marks->im_tree.mtt_step_size = min((sector_t)PAGE_CACHE_SECTORS, blocksize); @@ -149,9 +155,9 @@ BLK_LSEG2EXT(struct pnfs_layout_segment *lseg) return BLK_LO2EXT(lseg->pls_layout); } -struct bl_dev_msg { - int32_t status; - uint32_t major, minor; +struct bl_pipe_msg { + struct rpc_pipe_msg msg; + wait_queue_head_t *bl_wq; }; struct bl_msg_hdr { @@ -159,9 +165,6 @@ struct bl_msg_hdr { u16 totallen; /* length of entire message, including hdr itself */ }; -extern struct dentry *bl_device_pipe; -extern wait_queue_head_t bl_wq; - #define BL_DEVICE_UMOUNT 0x0 /* Umount--delete devices */ #define BL_DEVICE_MOUNT 0x1 /* Mount--create devices*/ #define BL_DEVICE_REQUEST_INIT 0x0 /* Start request */ @@ -171,8 +174,7 @@ extern wait_queue_head_t bl_wq; /* blocklayoutdev.c */ ssize_t bl_pipe_downcall(struct file *, const char __user *, size_t); void bl_pipe_destroy_msg(struct rpc_pipe_msg *); -struct block_device *nfs4_blkdev_get(dev_t dev); -int nfs4_blkdev_put(struct block_device *bdev); +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, @@ -186,8 +188,7 @@ struct pnfs_block_extent * bl_find_get_extent(struct pnfs_block_layout *bl, sector_t isect, struct pnfs_block_extent **cow_read); int bl_mark_sectors_init(struct pnfs_inval_markings *marks, - sector_t offset, sector_t length, - sector_t **pages); + sector_t offset, sector_t length); void bl_put_extent(struct pnfs_block_extent *be); struct pnfs_block_extent *bl_alloc_extent(void); int bl_is_sector_init(struct pnfs_inval_markings *marks, sector_t isect); @@ -200,6 +201,11 @@ void clean_pnfs_block_layoutupdate(struct pnfs_block_layout *bl, int bl_add_merge_extent(struct pnfs_block_layout *bl, struct pnfs_block_extent *new); int bl_mark_for_commit(struct pnfs_block_extent *be, - sector_t offset, sector_t length); + sector_t offset, sector_t length, + struct pnfs_block_short_extent *new); +int bl_push_one_short_extent(struct pnfs_inval_markings *marks); +struct pnfs_block_short_extent * +bl_pop_one_short_extent(struct pnfs_inval_markings *marks); +void bl_free_short_extents(struct pnfs_inval_markings *marks, int num_to_free); #endif /* FS_NFS_NFS4BLOCKLAYOUT_H */ |