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yaml
---
r: 310478
b: refs/heads/master
c: 05ba1f0
h: refs/heads/master
v: v3
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Anatol Pomozov authored and Miklos Szeredi committed Apr 25, 2012
1 parent 3543d1d commit d5daddf
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Showing 3 changed files with 47 additions and 2 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: e2690695ce5085677b84fbf2e38d2ed57cad39cd
refs/heads/master: 05ba1f0823004e947748523782e9c2f07f3bff0d
33 changes: 33 additions & 0 deletions trunk/fs/fuse/file.c
Original file line number Diff line number Diff line change
Expand Up @@ -2171,6 +2171,37 @@ fuse_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
return ret;
}

long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
loff_t length)
{
struct fuse_file *ff = file->private_data;
struct fuse_conn *fc = ff->fc;
struct fuse_req *req;
struct fuse_fallocate_in inarg = {
.fh = ff->fh,
.offset = offset,
.length = length,
.mode = mode
};
int err;

req = fuse_get_req(fc);
if (IS_ERR(req))
return PTR_ERR(req);

req->in.h.opcode = FUSE_FALLOCATE;
req->in.h.nodeid = ff->nodeid;
req->in.numargs = 1;
req->in.args[0].size = sizeof(inarg);
req->in.args[0].value = &inarg;
fuse_request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);

return err;
}
EXPORT_SYMBOL_GPL(fuse_file_fallocate);

static const struct file_operations fuse_file_operations = {
.llseek = fuse_file_llseek,
.read = do_sync_read,
Expand All @@ -2188,6 +2219,7 @@ static const struct file_operations fuse_file_operations = {
.unlocked_ioctl = fuse_file_ioctl,
.compat_ioctl = fuse_file_compat_ioctl,
.poll = fuse_file_poll,
.fallocate = fuse_file_fallocate,
};

static const struct file_operations fuse_direct_io_file_operations = {
Expand All @@ -2204,6 +2236,7 @@ static const struct file_operations fuse_direct_io_file_operations = {
.unlocked_ioctl = fuse_file_ioctl,
.compat_ioctl = fuse_file_compat_ioctl,
.poll = fuse_file_poll,
.fallocate = fuse_file_fallocate,
/* no splice_read */
};

Expand Down
14 changes: 13 additions & 1 deletion trunk/include/linux/fuse.h
Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,9 @@
* 7.18
* - add FUSE_IOCTL_DIR flag
* - add FUSE_NOTIFY_DELETE
*
* 7.19
* - add FUSE_FALLOCATE
*/

#ifndef _LINUX_FUSE_H
Expand Down Expand Up @@ -85,7 +88,7 @@
#define FUSE_KERNEL_VERSION 7

/** Minor version number of this interface */
#define FUSE_KERNEL_MINOR_VERSION 18
#define FUSE_KERNEL_MINOR_VERSION 19

/** The node ID of the root inode */
#define FUSE_ROOT_ID 1
Expand Down Expand Up @@ -278,6 +281,7 @@ enum fuse_opcode {
FUSE_POLL = 40,
FUSE_NOTIFY_REPLY = 41,
FUSE_BATCH_FORGET = 42,
FUSE_FALLOCATE = 43,

/* CUSE specific operations */
CUSE_INIT = 4096,
Expand Down Expand Up @@ -571,6 +575,14 @@ struct fuse_notify_poll_wakeup_out {
__u64 kh;
};

struct fuse_fallocate_in {
__u64 fh;
__u64 offset;
__u64 length;
__u32 mode;
__u32 padding;
};

struct fuse_in_header {
__u32 len;
__u32 opcode;
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