fs/fuse/fuse_i.h

3   Copyright (C) 2001-2008  Miklos Szeredi <miklos@szeredi.hu>
23 #include <linux/backing-dev.h>
41 /** Bias for fi->writectr, meaning new writepages must not be sent */
110 	/** The sticky bit in inode->i_mode may have been removed, so
126 			/* Files usable in writepage.  Protected by fi->lock */
142 			/* waitq for direct-io completion */
257 	/** RB node to be linked on fuse_conn->polled_files */
263 	/** Does file hold a fi->iocachectr refcount? */
398  *   - FR_ABORTED
399  *   - FR_LOCKED (may also be modified under fc->lock, tested under both)
432 	/** virtio-fs's physically contiguous buffer for in and out args */
445  * Input queue signalling is device-specific.  For example, the /dev/fuse file
446  * uses fiq->waitq and fasync to wake processes that are waiting on queue
454 	void (*send_forget)(struct fuse_iqueue *fiq, struct fuse_forget_link *link);
459 	void (*send_interrupt)(struct fuse_iqueue *fiq, struct fuse_req *req);
464 	void (*send_req)(struct fuse_iqueue *fiq, struct fuse_req *req);
469 	void (*release)(struct fuse_iqueue *fiq);
504 	/** Device-specific callbacks */
507 	/** Device-specific state */
538 	/** list entry on fc->devices */
544 	FUSE_DAX_ALWAYS,	/* "-o dax=always" */
545 	FUSE_DAX_NEVER,		/* "-o dax=never" */
546 	FUSE_DAX_INODE_USER,	/* "-o dax=inode" */
630 	/** Constrain ->max_pages to this value during feature negotiation */
700 	/** write-back cache policy (default is write-through) */
776 	/** Do multi-page cached writes */
803 	/** Does the filesystem support asynchronous direct-IO submission? */
812 	/** Check permissions based on the file mode or not? */
833 	/* Auto-mount submounts announced by the server */
903 	/* Dax specific conn data, non-NULL if DAX is enabled */
931 	 * Super block for this connection (fc->killsb must be held when
936 	/* Entry on fc->mounts */
943 	return sb->s_fs_info;  in get_fuse_mount_super()
948 	return get_fuse_mount_super(sb)->fc;  in get_fuse_conn_super()
953 	return get_fuse_mount_super(inode->i_sb);  in get_fuse_mount()
958 	return get_fuse_mount_super(inode->i_sb)->fc;  in get_fuse_conn()
968 	return get_fuse_inode(inode)->nodeid;  in get_node_id()
978 	return atomic64_read(&fc->attr_version);  in fuse_get_attr_version()
984 	return inode->i_generation != generation ||  in fuse_stale_inode()
985 		inode_wrong_type(inode, attr->mode);  in fuse_stale_inode()
990 	set_bit(FUSE_I_BAD, &get_fuse_inode(inode)->state);  in fuse_make_bad()
995 	return unlikely(test_bit(FUSE_I_BAD, &get_fuse_inode(inode)->state));  in fuse_is_bad()
1017 		descs[i].length = PAGE_SIZE - descs[i].offset;  in fuse_page_descs_length_init()
1024 	if (atomic_dec_and_test(&bucket->count))  in fuse_sync_bucket_dec()
1025 		wake_up(&bucket->waitq);  in fuse_sync_bucket_dec()
1197 	fuse_time_to_jiffies((o)->attr_valid, (o)->attr_valid_nsec)
1226  * @sb: partially-initialized superblock to fill in
1290  * The caller must hold fc->killsb.
1296  * File-system tells the kernel to invalidate cache for the given node id.
1302  * File-system tells the kernel to invalidate parent attributes and
1305  * If the child_nodeid is non-zero and:
1306  *    - matches the inode number for the dentry matching parent/name,
1307  *    - is not a mount point
1308  *    - is a file or oan empty directory
1321 /** If set, it is WRITE; otherwise - READ */
1324 /** CUSE pass fuse_direct_io() a file which f_mapping->host is not from FUSE */
1375 u64 fuse_get_unique(struct fuse_iqueue *fiq);
1423 	return READ_ONCE(fi->fb);  in fuse_inode_backing()
1433 	return xchg(&fi->fb, fb);  in fuse_inode_backing_set()
1467 	return ff->passthrough;  in fuse_file_passthrough()