diff options
Diffstat (limited to 'fs/fuse/dir.c')
-rw-r--r-- | fs/fuse/dir.c | 57 |
1 files changed, 40 insertions, 17 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index cfc8f81e60d..1cabdb229ad 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -138,11 +138,9 @@ static int fuse_dentry_revalidate(struct dentry *entry, struct nameidata *nd) struct fuse_entry_out outarg; struct fuse_conn *fc; struct fuse_req *req; + struct fuse_req *forget_req; struct dentry *parent; - /* Doesn't hurt to "reset" the validity timeout */ - fuse_invalidate_entry_cache(entry); - /* For negative dentries, always do a fresh lookup */ if (!inode) return 0; @@ -152,25 +150,33 @@ static int fuse_dentry_revalidate(struct dentry *entry, struct nameidata *nd) if (IS_ERR(req)) return 0; + forget_req = fuse_get_req(fc); + if (IS_ERR(forget_req)) { + fuse_put_request(fc, req); + return 0; + } + parent = dget_parent(entry); fuse_lookup_init(req, parent->d_inode, entry, &outarg); request_send(fc, req); dput(parent); err = req->out.h.error; + fuse_put_request(fc, req); /* Zero nodeid is same as -ENOENT */ if (!err && !outarg.nodeid) err = -ENOENT; if (!err) { struct fuse_inode *fi = get_fuse_inode(inode); if (outarg.nodeid != get_node_id(inode)) { - fuse_send_forget(fc, req, outarg.nodeid, 1); + fuse_send_forget(fc, forget_req, + outarg.nodeid, 1); return 0; } spin_lock(&fc->lock); fi->nlookup ++; spin_unlock(&fc->lock); } - fuse_put_request(fc, req); + fuse_put_request(fc, forget_req); if (err || (outarg.attr.mode ^ inode->i_mode) & S_IFMT) return 0; @@ -221,6 +227,7 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry, struct inode *inode = NULL; struct fuse_conn *fc = get_fuse_conn(dir); struct fuse_req *req; + struct fuse_req *forget_req; if (entry->d_name.len > FUSE_NAME_MAX) return ERR_PTR(-ENAMETOOLONG); @@ -229,9 +236,16 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry, if (IS_ERR(req)) return ERR_PTR(PTR_ERR(req)); + forget_req = fuse_get_req(fc); + if (IS_ERR(forget_req)) { + fuse_put_request(fc, req); + return ERR_PTR(PTR_ERR(forget_req)); + } + fuse_lookup_init(req, dir, entry, &outarg); request_send(fc, req); err = req->out.h.error; + fuse_put_request(fc, req); /* Zero nodeid is same as -ENOENT, but with valid timeout */ if (!err && outarg.nodeid && (invalid_nodeid(outarg.nodeid) || !valid_mode(outarg.attr.mode))) @@ -240,11 +254,11 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry, inode = fuse_iget(dir->i_sb, outarg.nodeid, outarg.generation, &outarg.attr); if (!inode) { - fuse_send_forget(fc, req, outarg.nodeid, 1); + fuse_send_forget(fc, forget_req, outarg.nodeid, 1); return ERR_PTR(-ENOMEM); } } - fuse_put_request(fc, req); + fuse_put_request(fc, forget_req); if (err && err != -ENOENT) return ERR_PTR(err); @@ -388,6 +402,13 @@ static int create_new_entry(struct fuse_conn *fc, struct fuse_req *req, struct fuse_entry_out outarg; struct inode *inode; int err; + struct fuse_req *forget_req; + + forget_req = fuse_get_req(fc); + if (IS_ERR(forget_req)) { + fuse_put_request(fc, req); + return PTR_ERR(forget_req); + } req->in.h.nodeid = get_node_id(dir); req->out.numargs = 1; @@ -395,24 +416,24 @@ static int create_new_entry(struct fuse_conn *fc, struct fuse_req *req, req->out.args[0].value = &outarg; request_send(fc, req); err = req->out.h.error; - if (err) { - fuse_put_request(fc, req); - return err; - } + fuse_put_request(fc, req); + if (err) + goto out_put_forget_req; + err = -EIO; if (invalid_nodeid(outarg.nodeid)) - goto out_put_request; + goto out_put_forget_req; if ((outarg.attr.mode ^ mode) & S_IFMT) - goto out_put_request; + goto out_put_forget_req; inode = fuse_iget(dir->i_sb, outarg.nodeid, outarg.generation, &outarg.attr); if (!inode) { - fuse_send_forget(fc, req, outarg.nodeid, 1); + fuse_send_forget(fc, forget_req, outarg.nodeid, 1); return -ENOMEM; } - fuse_put_request(fc, req); + fuse_put_request(fc, forget_req); if (S_ISDIR(inode->i_mode)) { struct dentry *alias; @@ -434,8 +455,8 @@ static int create_new_entry(struct fuse_conn *fc, struct fuse_req *req, fuse_invalidate_attr(dir); return 0; - out_put_request: - fuse_put_request(fc, req); + out_put_forget_req: + fuse_put_request(fc, forget_req); return err; } @@ -1003,6 +1024,8 @@ static int fuse_setattr(struct dentry *entry, struct iattr *attr) if (attr->ia_valid & ATTR_SIZE) { unsigned long limit; is_truncate = 1; + 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); |