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authorMiklos Szeredi <mszeredi@suse.cz>2007-10-18 03:06:59 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-18 14:37:30 -0700
commitc79e322f63592c00b25b17af6a1782fad6c6fe6e (patch)
treed3cbacb295b82c036553f68f5a060c67ae16bfa3 /fs/fuse
parent1fb69e7817296da8a6824804bb206ca1e7f31425 (diff)
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fuse: add file handle to getattr operation
Add necessary protocol changes for supplying a file handle with the getattr operation. Step the API version to 7.9. This patch doesn't actually supply the file handle, because that needs some kind of VFS support, which we haven't yet been able to agree upon. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/fuse')
-rw-r--r--fs/fuse/dir.c37
-rw-r--r--fs/fuse/inode.c2
2 files changed, 26 insertions, 13 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index a058b664859..8c5d156284a 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -705,10 +705,12 @@ static void fuse_fillattr(struct inode *inode, struct fuse_attr *attr,
stat->blksize = (1 << inode->i_blkbits);
}
-static int fuse_do_getattr(struct inode *inode, struct kstat *stat)
+static int fuse_do_getattr(struct inode *inode, struct kstat *stat,
+ struct file *file)
{
int err;
- struct fuse_attr_out arg;
+ struct fuse_getattr_in inarg;
+ struct fuse_attr_out outarg;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_req *req;
u64 attr_version;
@@ -721,24 +723,35 @@ static int fuse_do_getattr(struct inode *inode, struct kstat *stat)
attr_version = fc->attr_version;
spin_unlock(&fc->lock);
+ memset(&inarg, 0, sizeof(inarg));
+ /* Directories have separate file-handle space */
+ if (file && S_ISREG(inode->i_mode)) {
+ struct fuse_file *ff = file->private_data;
+
+ inarg.getattr_flags |= FUSE_GETATTR_FH;
+ inarg.fh = ff->fh;
+ }
req->in.h.opcode = FUSE_GETATTR;
req->in.h.nodeid = get_node_id(inode);
+ req->in.numargs = 1;
+ req->in.args[0].size = sizeof(inarg);
+ req->in.args[0].value = &inarg;
req->out.numargs = 1;
- req->out.args[0].size = sizeof(arg);
- req->out.args[0].value = &arg;
+ req->out.args[0].size = sizeof(outarg);
+ req->out.args[0].value = &outarg;
request_send(fc, req);
err = req->out.h.error;
fuse_put_request(fc, req);
if (!err) {
- if ((inode->i_mode ^ arg.attr.mode) & S_IFMT) {
+ if ((inode->i_mode ^ outarg.attr.mode) & S_IFMT) {
make_bad_inode(inode);
err = -EIO;
} else {
- fuse_change_attributes(inode, &arg.attr,
- attr_timeout(&arg),
+ fuse_change_attributes(inode, &outarg.attr,
+ attr_timeout(&outarg),
attr_version);
if (stat)
- fuse_fillattr(inode, &arg.attr, stat);
+ fuse_fillattr(inode, &outarg.attr, stat);
}
}
return err;
@@ -833,7 +846,7 @@ static int fuse_permission(struct inode *inode, int mask, struct nameidata *nd)
((mask & MAY_EXEC) && S_ISREG(inode->i_mode))) {
struct fuse_inode *fi = get_fuse_inode(inode);
if (fi->i_time < get_jiffies_64()) {
- err = fuse_do_getattr(inode, NULL);
+ err = fuse_do_getattr(inode, NULL, NULL);
if (err)
return err;
@@ -848,7 +861,7 @@ static int fuse_permission(struct inode *inode, int mask, struct nameidata *nd)
attributes. This is also needed, because the root
node will at first have no permissions */
if (err == -EACCES && !refreshed) {
- err = fuse_do_getattr(inode, NULL);
+ err = fuse_do_getattr(inode, NULL, NULL);
if (!err)
err = generic_permission(inode, mask, NULL);
}
@@ -864,7 +877,7 @@ static int fuse_permission(struct inode *inode, int mask, struct nameidata *nd)
if (refreshed)
return -EACCES;
- err = fuse_do_getattr(inode, NULL);
+ err = fuse_do_getattr(inode, NULL, NULL);
if (!err && !(inode->i_mode & S_IXUGO))
return -EACCES;
}
@@ -1107,7 +1120,7 @@ static int fuse_getattr(struct vfsmount *mnt, struct dentry *entry,
return -EACCES;
if (fi->i_time < get_jiffies_64())
- err = fuse_do_getattr(inode, stat);
+ err = fuse_do_getattr(inode, stat, NULL);
else {
err = 0;
generic_fillattr(inode, stat);
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 2167fc4fcab..6ef3973f404 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -553,7 +553,7 @@ static void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req)
arg->major = FUSE_KERNEL_VERSION;
arg->minor = FUSE_KERNEL_MINOR_VERSION;
arg->max_readahead = fc->bdi.ra_pages * PAGE_CACHE_SIZE;
- arg->flags |= FUSE_ASYNC_READ | FUSE_POSIX_LOCKS;
+ arg->flags |= FUSE_ASYNC_READ | FUSE_POSIX_LOCKS | FUSE_FILE_OPS;
req->in.h.opcode = FUSE_INIT;
req->in.numargs = 1;
req->in.args[0].size = sizeof(*arg);