Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…

…/git/mszeredi/fuse

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: implement nonseekable open
  fuse: add include protectors
  fuse: config description improvement
  fuse: add missing fuse_request_free
  fuse: fix SEEK_END incorrectness

fs/Kconfig

@@ -403,7 +403,7 @@ config AUTOFS4_FS
 	  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.

fs/fuse/file.c

@@ -101,6 +101,8 @@ void fuse_finish_open(struct inode *inode, struct file *file,
 		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);
 }
@@ -1448,6 +1450,9 @@ static loff_t fuse_file_llseek(struct file *file, loff_t offset, int origin)
 	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:

fs/fuse/fuse_i.h

@@ -6,6 +6,9 @@
   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>
@@ -655,3 +658,5 @@ void fuse_set_nowrite(struct inode *inode);
 void fuse_release_nowrite(struct inode *inode);
 
 u64 fuse_get_attr_version(struct fuse_conn *fc);
+
+#endif /* _FS_FUSE_I_H */

fs/fuse/inode.c

@@ -865,7 +865,7 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
 	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);
@@ -895,6 +895,7 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
 
  err_unlock:
 	mutex_unlock(&fuse_mutex);
+ err_free_init_req:
 	fuse_request_free(init_req);
  err_put_root:
 	dput(root_dentry);

include/linux/fuse.h

@@ -17,16 +17,22 @@
  *  - 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>
 
 /** Version number of this interface */
 #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
@@ -98,9 +104,11 @@ struct fuse_file_lock {
  *
  * 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
@@ -409,3 +417,5 @@ struct fuse_dirent {
 #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 */