GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

fuse: add support for SEEK_HOLE and SEEK_DATA in lseek

Browse source 
A useful performance improvement for accessing virtual machine images
via FUSE mount.

See https://bugzilla.redhat.com/show_bug.cgi?id=1220173 for a use-case
for glusterFS.

Signed-off-by: Ravishankar N <ravishankar@redhat.com>
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
This commit is contained in:
Ravishankar N 2015-06-30 23:40:22 +05:30 • committed by Miklos Szeredi
parent 3ca8138f01
commit 0b5da8db14
3 changed files with 84 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

17
include/uapi/linux/fuse.h
View file

@ -102,6 +102,9 @@
* - add ctime and ctimensec to fuse_setattr_in
* - add FUSE_RENAME2 request
* - add FUSE_NO_OPEN_SUPPORT flag
*
* 7.24
* - add FUSE_LSEEK for SEEK_HOLE and SEEK_DATA support
*/
#ifndef _LINUX_FUSE_H
@ -137,7 +140,7 @@
#define FUSE_KERNEL_VERSION 7
/** Minor version number of this interface */
#define FUSE_KERNEL_MINOR_VERSION 23
#define FUSE_KERNEL_MINOR_VERSION 24
/** The node ID of the root inode */
#define FUSE_ROOT_ID 1
@ -358,6 +361,7 @@ enum fuse_opcode {
FUSE_FALLOCATE = 43,
FUSE_READDIRPLUS = 44,
FUSE_RENAME2 = 45,
FUSE_LSEEK = 46,
/* CUSE specific operations */
CUSE_INIT = 4096,
@ -758,4 +762,15 @@ struct fuse_notify_retrieve_in {
/* Device ioctls: */
#define FUSE_DEV_IOC_CLONE _IOR(229, 0, uint32_t)
struct fuse_lseek_in {
uint64_t fh;
uint64_t offset;
uint32_t whence;
uint32_t padding;
};
struct fuse_lseek_out {
uint64_t offset;
};
#endif /* _LINUX_FUSE_H */