N here.
config FUSE_FS
- tristate "Filesystem in Userspace support"
+ tristate "FUSE (Filesystem in Userspace) support"
help
With FUSE it is possible to implement a fully functional filesystem
in a userspace program.
file->f_op = &fuse_direct_io_file_operations;
if (!(outarg->open_flags & FOPEN_KEEP_CACHE))
invalidate_inode_pages2(inode->i_mapping);
+ if (outarg->open_flags & FOPEN_NONSEEKABLE)
+ nonseekable_open(inode, file);
ff->fh = outarg->fh;
file->private_data = fuse_file_get(ff);
}
mutex_lock(&inode->i_mutex);
switch (origin) {
case SEEK_END:
+ retval = fuse_update_attributes(inode, NULL, file, NULL);
+ if (retval)
+ return retval;
offset += i_size_read(inode);
break;
case SEEK_CUR:
See the file COPYING.
*/
+#ifndef _FS_FUSE_I_H
+#define _FS_FUSE_I_H
+
#include <linux/fuse.h>
#include <linux/fs.h>
#include <linux/mount.h>
void fuse_release_nowrite(struct inode *inode);
u64 fuse_get_attr_version(struct fuse_conn *fc);
+
+#endif /* _FS_FUSE_I_H */
if (is_bdev) {
fc->destroy_req = fuse_request_alloc();
if (!fc->destroy_req)
- goto err_put_root;
+ goto err_free_init_req;
}
mutex_lock(&fuse_mutex);
err_unlock:
mutex_unlock(&fuse_mutex);
+ err_free_init_req:
fuse_request_free(init_req);
err_put_root:
dput(root_dentry);
* - add lock_owner field to fuse_setattr_in, fuse_read_in and fuse_write_in
* - add blksize field to fuse_attr
* - add file flags field to fuse_read_in and fuse_write_in
+ *
+ * 7.10
+ * - add nonseekable open flag
*/
+#ifndef _LINUX_FUSE_H
+#define _LINUX_FUSE_H
+
#include <asm/types.h>
#include <linux/major.h>
#define FUSE_KERNEL_VERSION 7
/** Minor version number of this interface */
-#define FUSE_KERNEL_MINOR_VERSION 9
+#define FUSE_KERNEL_MINOR_VERSION 10
/** The node ID of the root inode */
#define FUSE_ROOT_ID 1
*
* FOPEN_DIRECT_IO: bypass page cache for this open file
* FOPEN_KEEP_CACHE: don't invalidate the data cache on open
+ * FOPEN_NONSEEKABLE: the file is not seekable
*/
#define FOPEN_DIRECT_IO (1 << 0)
#define FOPEN_KEEP_CACHE (1 << 1)
+#define FOPEN_NONSEEKABLE (1 << 2)
/**
* INIT request/reply flags
#define FUSE_DIRENT_ALIGN(x) (((x) + sizeof(__u64) - 1) & ~(sizeof(__u64) - 1))
#define FUSE_DIRENT_SIZE(d) \
FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen)
+
+#endif /* _LINUX_FUSE_H */