drop unused dentry argument to ->fsync

[safe/jmp/linux-2.6] / fs / fuse / dir.c

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index faa3b2f..3cdc5f7 100644 (file)
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -362,19 +362,6 @@ 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,
-                             int flags)
-{
-       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);
-       kfree(ff);
-}
-
-/*
  * Atomic create+open operation
  *
  * If the filesystem doesn't support this, then fall back to separate
@@ -388,7 +375,7 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
        struct fuse_conn *fc = get_fuse_conn(dir);
        struct fuse_req *req;
        struct fuse_req *forget_req;
-       struct fuse_open_in inarg;
+       struct fuse_create_in inarg;
        struct fuse_open_out outopen;
        struct fuse_entry_out outentry;
        struct fuse_file *ff;
@@ -398,6 +385,9 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
        if (fc->no_create)
                return -ENOSYS;
 
+       if (flags & O_DIRECT)
+               return -EINVAL;
+
        forget_req = fuse_get_req(fc);
        if (IS_ERR(forget_req))
                return PTR_ERR(forget_req);
@@ -412,15 +402,20 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
        if (!ff)
                goto out_put_request;
 
+       if (!fc->dont_mask)
+               mode &= ~current_umask();
+
        flags &= ~O_NOCTTY;
        memset(&inarg, 0, sizeof(inarg));
        memset(&outentry, 0, sizeof(outentry));
        inarg.flags = flags;
        inarg.mode = mode;
+       inarg.umask = current_umask();
        req->in.h.opcode = FUSE_CREATE;
        req->in.h.nodeid = get_node_id(dir);
        req->in.numargs = 2;
-       req->in.args[0].size = sizeof(inarg);
+       req->in.args[0].size = fc->minor < 12 ? sizeof(struct fuse_open_in) :
+                                               sizeof(inarg);
        req->in.args[0].value = &inarg;
        req->in.args[1].size = entry->d_name.len + 1;
        req->in.args[1].value = entry->d_name.name;
@@ -452,7 +447,7 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
                          &outentry.attr, entry_attr_timeout(&outentry), 0);
        if (!inode) {
                flags &= ~(O_CREAT | O_EXCL | O_TRUNC);
-               fuse_sync_release(fc, ff, flags);
+               fuse_sync_release(ff, flags);
                fuse_send_forget(fc, forget_req, outentry.nodeid, 1);
                return -ENOMEM;
        }
@@ -462,7 +457,7 @@ 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)) {
-               fuse_sync_release(fc, ff, flags);
+               fuse_sync_release(ff, flags);
                return PTR_ERR(file);
        }
        file->private_data = fuse_file_get(ff);
@@ -559,12 +554,17 @@ static int fuse_mknod(struct inode *dir, struct dentry *entry, int mode,
        if (IS_ERR(req))
                return PTR_ERR(req);
 
+       if (!fc->dont_mask)
+               mode &= ~current_umask();
+
        memset(&inarg, 0, sizeof(inarg));
        inarg.mode = mode;
        inarg.rdev = new_encode_dev(rdev);
+       inarg.umask = current_umask();
        req->in.h.opcode = FUSE_MKNOD;
        req->in.numargs = 2;
-       req->in.args[0].size = sizeof(inarg);
+       req->in.args[0].size = fc->minor < 12 ? FUSE_COMPAT_MKNOD_IN_SIZE :
+                                               sizeof(inarg);
        req->in.args[0].value = &inarg;
        req->in.args[1].size = entry->d_name.len + 1;
        req->in.args[1].value = entry->d_name.name;
@@ -591,8 +591,12 @@ static int fuse_mkdir(struct inode *dir, struct dentry *entry, int mode)
        if (IS_ERR(req))
                return PTR_ERR(req);
 
+       if (!fc->dont_mask)
+               mode &= ~current_umask();
+
        memset(&inarg, 0, sizeof(inarg));
        inarg.mode = mode;
+       inarg.umask = current_umask();
        req->in.h.opcode = FUSE_MKDIR;
        req->in.numargs = 2;
        req->in.args[0].size = sizeof(inarg);
@@ -711,8 +715,10 @@ static int fuse_rename(struct inode *olddir, struct dentry *oldent,
                        fuse_invalidate_attr(newdir);
 
                /* newent will end up negative */
-               if (newent->d_inode)
+               if (newent->d_inode) {
+                       fuse_invalidate_attr(newent->d_inode);
                        fuse_invalidate_entry_cache(newent);
+               }
        } else if (err == -EINTR) {
                /* If request was interrupted, DEITY only knows if the
                   rename actually took place.  If the invalidation
@@ -858,6 +864,43 @@ int fuse_update_attributes(struct inode *inode, struct kstat *stat,
        return err;
 }
 
+int fuse_reverse_inval_entry(struct super_block *sb, u64 parent_nodeid,
+                            struct qstr *name)
+{
+       int err = -ENOTDIR;
+       struct inode *parent;
+       struct dentry *dir;
+       struct dentry *entry;
+
+       parent = ilookup5(sb, parent_nodeid, fuse_inode_eq, &parent_nodeid);
+       if (!parent)
+               return -ENOENT;
+
+       mutex_lock(&parent->i_mutex);
+       if (!S_ISDIR(parent->i_mode))
+               goto unlock;
+
+       err = -ENOENT;
+       dir = d_find_alias(parent);
+       if (!dir)
+               goto unlock;
+
+       entry = d_lookup(dir, name);
+       dput(dir);
+       if (!entry)
+               goto unlock;
+
+       fuse_invalidate_attr(parent);
+       fuse_invalidate_entry(entry);
+       dput(entry);
+       err = 0;
+
+ unlock:
+       mutex_unlock(&parent->i_mutex);
+       iput(parent);
+       return err;
+}
+
 /*
  * Calling into a user-controlled filesystem gives the filesystem
  * daemon ptrace-like capabilities over the requester process.  This
@@ -1108,13 +1151,14 @@ static int fuse_dir_open(struct inode *inode, struct file *file)
 
 static int fuse_dir_release(struct inode *inode, struct file *file)
 {
-       return fuse_release_common(inode, file, 1);
+       fuse_release_common(file, FUSE_RELEASEDIR);
+
+       return 0;
 }
 
-static int fuse_dir_fsync(struct file *file, struct dentry *de, int datasync)
+static int fuse_dir_fsync(struct file *file, int datasync)
 {
-       /* nfsd can call this with no file */
-       return file ? fuse_fsync_common(file, de, datasync, 1) : 0;
+       return fuse_fsync_common(file, datasync, 1);
 }
 
 static bool update_mtime(unsigned ivalid)
@@ -1236,14 +1280,9 @@ static int fuse_do_setattr(struct dentry *entry, struct iattr *attr,
                return 0;
 
        if (attr->ia_valid & ATTR_SIZE) {
-               unsigned long limit;
-               if (IS_SWAPFILE(inode))
-                       return -ETXTBSY;
-               limit = current->signal->rlim[RLIMIT_FSIZE].rlim_cur;
-               if (limit != RLIM_INFINITY && attr->ia_size > (loff_t) limit) {
-                       send_sig(SIGXFSZ, current, 0);
-                       return -EFBIG;
-               }
+               err = inode_newsize_ok(inode, attr->ia_size);
+               if (err)
+                       return err;
                is_truncate = true;
        }
 
@@ -1310,8 +1349,7 @@ static int fuse_do_setattr(struct dentry *entry, struct iattr *attr,
         * FUSE_NOWRITE, otherwise fuse_launder_page() would deadlock.
         */
        if (S_ISREG(inode->i_mode) && oldsize != outarg.attr.size) {
-               if (outarg.attr.size < oldsize)
-                       fuse_truncate(inode->i_mapping, outarg.attr.size);
+               truncate_pagecache(inode, oldsize, outarg.attr.size);
                invalidate_inode_pages2(inode->i_mapping);
        }