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[PATCH] fuse: READ request initialization

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Add a separate function for filling in the READ request.  This will make it
possible to send asynchronous READ requests as well as synchronous ones.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Miklos Szeredi 2006-01-16 22:14:45 -08:00 committed by Linus Torvalds
parent 9b9a04693f
commit 361b1eb55e
3 changed files with 18 additions and 24 deletions
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10
fs/fuse/dir.c
View file

@ -762,12 +762,6 @@ static int parse_dirfile(char *buf, size_t nbytes, struct file *file,
return 0;
}
static size_t fuse_send_readdir(struct fuse_req *req, struct file *file,
struct inode *inode, loff_t pos, size_t count)
{
return fuse_send_read_common(req, file, inode, pos, count, 1);
}
static int fuse_readdir(struct file *file, void *dstbuf, filldir_t filldir)
{
int err;
@ -791,7 +785,9 @@ static int fuse_readdir(struct file *file, void *dstbuf, filldir_t filldir)
}
req->num_pages = 1;
req->pages[0] = page;
nbytes = fuse_send_readdir(req, file, inode, file->f_pos, PAGE_SIZE);
fuse_read_fill(req, file, inode, file->f_pos, PAGE_SIZE, FUSE_READDIR);
request_send(fc, req);
nbytes = req->out.args[0].size;
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err)

24
fs/fuse/file.c
View file

@ -250,19 +250,16 @@ static int fuse_fsync(struct file *file, struct dentry *de, int datasync)
return fuse_fsync_common(file, de, datasync, 0);
}
size_t fuse_send_read_common(struct fuse_req *req, struct file *file,
struct inode *inode, loff_t pos, size_t count,
int isdir)
void fuse_read_fill(struct fuse_req *req, struct file *file,
struct inode *inode, loff_t pos, size_t count, int opcode)
{
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_file *ff = file->private_data;
struct fuse_read_in inarg;
struct fuse_read_in *inarg = &req->misc.read_in;
memset(&inarg, 0, sizeof(struct fuse_read_in));
inarg.fh = ff->fh;
inarg.offset = pos;
inarg.size = count;
req->in.h.opcode = isdir ? FUSE_READDIR : FUSE_READ;
inarg->fh = ff->fh;
inarg->offset = pos;
inarg->size = count;
req->in.h.opcode = opcode;
req->in.h.nodeid = get_node_id(inode);
req->inode = inode;
req->file = file;
@ -273,14 +270,15 @@ size_t fuse_send_read_common(struct fuse_req *req, struct file *file,
req->out.argvar = 1;
req->out.numargs = 1;
req->out.args[0].size = count;
request_send(fc, req);
return req->out.args[0].size;
}
static size_t fuse_send_read(struct fuse_req *req, struct file *file,
struct inode *inode, loff_t pos, size_t count)
{
return fuse_send_read_common(req, file, inode, pos, count, 0);
struct fuse_conn *fc = get_fuse_conn(inode);
fuse_read_fill(req, file, inode, pos, count, FUSE_READ);
request_send(fc, req);
return req->out.args[0].size;
}
static int fuse_readpage(struct file *file, struct page *page)

8
fs/fuse/fuse_i.h
View file

@ -169,6 +169,7 @@ struct fuse_req {
struct fuse_release_in release_in;
struct fuse_init_in init_in;
struct fuse_init_out init_out;
struct fuse_read_in read_in;
} misc;
/** page vector */
@ -354,11 +355,10 @@ void fuse_send_forget(struct fuse_conn *fc, struct fuse_req *req,
unsigned long nodeid, u64 nlookup);
/**
* Send READ or READDIR request
* Initialize READ or READDIR request
*/
size_t fuse_send_read_common(struct fuse_req *req, struct file *file,
struct inode *inode, loff_t pos, size_t count,
int isdir);
void fuse_read_fill(struct fuse_req *req, struct file *file,
struct inode *inode, loff_t pos, size_t count, int opcode);
/**
* Send OPEN or OPENDIR request