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fuse: clean up args in fuse_finish_open() and fuse_release_fill() 

Move setting ff->fh, ff->nodeid and file->private_data outside
fuse_finish_open().  Add ->open_flags member to struct fuse_file.

This simplifies the argument passing to fuse_finish_open() and
fuse_release_fill(), and paves the way for creating an open helper
that doesn't need an inode pointer.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
This commit is contained in:
Miklos Szeredi 2009-04-28 16:56:37 +02:00
parent 2106cb1893
commit c7b7143c63
3 changed files with 30 additions and 23 deletions
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16
fs/fuse/dir.c
View File

@ -365,9 +365,9 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
* Synchronous release for the case when something goes wrong in CREATE_OPEN
*/
static void fuse_sync_release(struct fuse_conn *fc, struct fuse_file *ff,
u64 nodeid, int flags)
int flags)
{
fuse_release_fill(ff, nodeid, flags, FUSE_RELEASE);
fuse_release_fill(ff, flags, FUSE_RELEASE);
ff->reserved_req->force = 1;
fuse_request_send(fc, ff->reserved_req);
fuse_put_request(fc, ff->reserved_req);
@ -445,12 +445,14 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
goto out_free_ff;
fuse_put_request(fc, req);
ff->fh = outopen.fh;
ff->nodeid = outentry.nodeid;
ff->open_flags = outopen.open_flags;
inode = fuse_iget(dir->i_sb, outentry.nodeid, outentry.generation,
&outentry.attr, entry_attr_timeout(&outentry), 0);
if (!inode) {
flags &= ~(O_CREAT | O_EXCL | O_TRUNC);
ff->fh = outopen.fh;
fuse_sync_release(fc, ff, outentry.nodeid, flags);
fuse_sync_release(fc, ff, flags);
fuse_send_forget(fc, forget_req, outentry.nodeid, 1);
return -ENOMEM;
}
@ -460,11 +462,11 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
fuse_invalidate_attr(dir);
file = lookup_instantiate_filp(nd, entry, generic_file_open);
if (IS_ERR(file)) {
ff->fh = outopen.fh;
fuse_sync_release(fc, ff, outentry.nodeid, flags);
fuse_sync_release(fc, ff, flags);
return PTR_ERR(file);
}
fuse_finish_open(inode, file, ff, &outopen);
file->private_data = fuse_file_get(ff);
fuse_finish_open(inode, file);
return 0;
out_free_ff:

28
fs/fuse/file.c
View File

@ -79,7 +79,7 @@ void fuse_file_free(struct fuse_file *ff)
kfree(ff);
}
static struct fuse_file *fuse_file_get(struct fuse_file *ff)
struct fuse_file *fuse_file_get(struct fuse_file *ff)
{
atomic_inc(&ff->count);
return ff;
@ -102,18 +102,16 @@ static void fuse_file_put(struct fuse_file *ff)
}
}
void fuse_finish_open(struct inode *inode, struct file *file,
struct fuse_file *ff, struct fuse_open_out *outarg)
void fuse_finish_open(struct inode *inode, struct file *file)
{
if (outarg->open_flags & FOPEN_DIRECT_IO)
struct fuse_file *ff = file->private_data;
if (ff->open_flags & FOPEN_DIRECT_IO)
file->f_op = &fuse_direct_io_file_operations;
if (!(outarg->open_flags & FOPEN_KEEP_CACHE))
if (!(ff->open_flags & FOPEN_KEEP_CACHE))
invalidate_inode_pages2(inode->i_mapping);
if (outarg->open_flags & FOPEN_NONSEEKABLE)
if (ff->open_flags & FOPEN_NONSEEKABLE)
nonseekable_open(inode, file);
ff->fh = outarg->fh;
ff->nodeid = get_node_id(inode);
file->private_data = fuse_file_get(ff);
}
int fuse_open_common(struct inode *inode, struct file *file, int isdir)
@ -141,13 +139,17 @@ int fuse_open_common(struct inode *inode, struct file *file, int isdir)
else {
if (isdir)
outarg.open_flags &= ~FOPEN_DIRECT_IO;
fuse_finish_open(inode, file, ff, &outarg);
ff->fh = outarg.fh;
ff->nodeid = get_node_id(inode);
ff->open_flags = outarg.open_flags;
file->private_data = fuse_file_get(ff);
fuse_finish_open(inode, file);
}
return err;
}
void fuse_release_fill(struct fuse_file *ff, u64 nodeid, int flags, int opcode)
void fuse_release_fill(struct fuse_file *ff, int flags, int opcode)
{
struct fuse_req *req = ff->reserved_req;
struct fuse_release_in *inarg = &req->misc.release.in;
@ -155,7 +157,7 @@ void fuse_release_fill(struct fuse_file *ff, u64 nodeid, int flags, int opcode)
inarg->fh = ff->fh;
inarg->flags = flags;
req->in.h.opcode = opcode;
req->in.h.nodeid = nodeid;
req->in.h.nodeid = ff->nodeid;
req->in.numargs = 1;
req->in.args[0].size = sizeof(struct fuse_release_in);
req->in.args[0].value = inarg;
@ -174,7 +176,7 @@ int fuse_release_common(struct inode *inode, struct file *file, int isdir)
fc = get_fuse_conn(inode);
req = ff->reserved_req;
fuse_release_fill(ff, get_node_id(inode), file->f_flags,
fuse_release_fill(ff, file->f_flags,
isdir ? FUSE_RELEASEDIR : FUSE_RELEASE);
/* Hold vfsmount and dentry until release is finished */

9
fs/fuse/fuse_i.h
View File

@ -119,6 +119,9 @@ struct fuse_file {
/** Refcount */
atomic_t count;
/** FOPEN_* flags returned by open */
u32 open_flags;
/** Entry on inode's write_files list */
struct list_head write_entry;
@ -528,12 +531,12 @@ void fuse_read_fill(struct fuse_req *req, struct file *file,
int fuse_open_common(struct inode *inode, struct file *file, int isdir);
struct fuse_file *fuse_file_alloc(struct fuse_conn *fc);
struct fuse_file *fuse_file_get(struct fuse_file *ff);
void fuse_file_free(struct fuse_file *ff);
void fuse_finish_open(struct inode *inode, struct file *file,
struct fuse_file *ff, struct fuse_open_out *outarg);
void fuse_finish_open(struct inode *inode, struct file *file);
/** Fill in ff->reserved_req with a RELEASE request */
void fuse_release_fill(struct fuse_file *ff, u64 nodeid, int flags, int opcode);
void fuse_release_fill(struct fuse_file *ff, int flags, int opcode);
/**
* Send RELEASE or RELEASEDIR request