diff options
Diffstat (limited to 'fs/fuse/fuse_i.h')
| -rw-r--r-- | fs/fuse/fuse_i.h | 84 |
1 files changed, 60 insertions, 24 deletions
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index ec248d13c8bf..c2f2a48156d6 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -210,6 +210,12 @@ struct fuse_inode { /** Reference to backing file in passthrough mode */ struct fuse_backing *fb; #endif + + /* + * The underlying inode->i_blkbits value will not be modified, + * so preserve the blocksize specified by the server. + */ + u8 cached_i_blkbits; }; /** FUSE inode state bits */ @@ -850,6 +856,9 @@ struct fuse_conn { /** Does the filesystem support copy_file_range? */ unsigned no_copy_file_range:1; + /** Does the filesystem support copy_file_range_64? */ + unsigned no_copy_file_range_64:1; + /* Send DESTROY request */ unsigned int destroy:1; @@ -895,6 +904,9 @@ struct fuse_conn { /* Is link not implemented by fs? */ unsigned int no_link:1; + /* Is synchronous FUSE_INIT allowed? */ + unsigned int sync_init:1; + /* Use io_uring for communication */ unsigned int io_uring; @@ -969,6 +981,14 @@ struct fuse_conn { /* Request timeout (in jiffies). 0 = no timeout */ unsigned int req_timeout; } timeout; + + /* + * This is a workaround until fuse uses iomap for reads. + * For fuseblk servers, this represents the blocksize passed in at + * mount time and for regular fuse servers, this is equivalent to + * inode->i_blkbits. + */ + u8 blkbits; }; /* @@ -1241,6 +1261,11 @@ int fuse_simple_background(struct fuse_mount *fm, struct fuse_args *args, gfp_t gfp_flags); /** + * Assign a unique id to a fuse request + */ +void fuse_request_assign_unique(struct fuse_iqueue *fiq, struct fuse_req *req); + +/** * End a finished request */ void fuse_request_end(struct fuse_req *req); @@ -1301,7 +1326,7 @@ struct fuse_dev *fuse_dev_alloc_install(struct fuse_conn *fc); struct fuse_dev *fuse_dev_alloc(void); void fuse_dev_install(struct fuse_dev *fud, struct fuse_conn *fc); void fuse_dev_free(struct fuse_dev *fud); -void fuse_send_init(struct fuse_mount *fm); +int fuse_send_init(struct fuse_mount *fm); /** * Fill in superblock and initialize fuse connection @@ -1393,6 +1418,12 @@ int fuse_reverse_inval_inode(struct fuse_conn *fc, u64 nodeid, int fuse_reverse_inval_entry(struct fuse_conn *fc, u64 parent_nodeid, u64 child_nodeid, struct qstr *name, u32 flags); +/* + * Try to prune this inode. If neither the inode itself nor dentries associated + * with this inode have any external reference, then the inode can be freed. + */ +void fuse_try_prune_one_inode(struct fuse_conn *fc, u64 nodeid); + int fuse_do_open(struct fuse_mount *fm, u64 nodeid, struct file *file, bool isdir); @@ -1498,29 +1529,11 @@ struct fuse_file *fuse_file_open(struct fuse_mount *fm, u64 nodeid, void fuse_file_release(struct inode *inode, struct fuse_file *ff, unsigned int open_flags, fl_owner_t id, bool isdir); -/* passthrough.c */ -static inline struct fuse_backing *fuse_inode_backing(struct fuse_inode *fi) -{ -#ifdef CONFIG_FUSE_PASSTHROUGH - return READ_ONCE(fi->fb); -#else - return NULL; -#endif -} - -static inline struct fuse_backing *fuse_inode_backing_set(struct fuse_inode *fi, - struct fuse_backing *fb) -{ -#ifdef CONFIG_FUSE_PASSTHROUGH - return xchg(&fi->fb, fb); -#else - return NULL; -#endif -} - +/* backing.c */ #ifdef CONFIG_FUSE_PASSTHROUGH struct fuse_backing *fuse_backing_get(struct fuse_backing *fb); void fuse_backing_put(struct fuse_backing *fb); +struct fuse_backing *fuse_backing_lookup(struct fuse_conn *fc, int backing_id); #else static inline struct fuse_backing *fuse_backing_get(struct fuse_backing *fb) @@ -1531,6 +1544,11 @@ static inline struct fuse_backing *fuse_backing_get(struct fuse_backing *fb) static inline void fuse_backing_put(struct fuse_backing *fb) { } +static inline struct fuse_backing *fuse_backing_lookup(struct fuse_conn *fc, + int backing_id) +{ + return NULL; +} #endif void fuse_backing_files_init(struct fuse_conn *fc); @@ -1538,9 +1556,27 @@ void fuse_backing_files_free(struct fuse_conn *fc); int fuse_backing_open(struct fuse_conn *fc, struct fuse_backing_map *map); int fuse_backing_close(struct fuse_conn *fc, int backing_id); -struct fuse_backing *fuse_passthrough_open(struct file *file, - struct inode *inode, - int backing_id); +/* passthrough.c */ +static inline struct fuse_backing *fuse_inode_backing(struct fuse_inode *fi) +{ +#ifdef CONFIG_FUSE_PASSTHROUGH + return READ_ONCE(fi->fb); +#else + return NULL; +#endif +} + +static inline struct fuse_backing *fuse_inode_backing_set(struct fuse_inode *fi, + struct fuse_backing *fb) +{ +#ifdef CONFIG_FUSE_PASSTHROUGH + return xchg(&fi->fb, fb); +#else + return NULL; +#endif +} + +struct fuse_backing *fuse_passthrough_open(struct file *file, int backing_id); void fuse_passthrough_release(struct fuse_file *ff, struct fuse_backing *fb); static inline struct file *fuse_file_passthrough(struct fuse_file *ff) |