5e7f1d4338
This should be a no-op now, but once inode writeback works, it'll be necessary to have the correct attribute in the dirty inode. Previously the attribute fetch timeout was marked invalid and the server provided the updated attribute. When the inode is dirty, the server cannot be consulted since it does not yet know the pending setattr. Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
448 lines
12 KiB
C
448 lines
12 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* (C) 2001 Clemson University and The University of Chicago
|
|
*
|
|
* See COPYING in top-level directory.
|
|
*/
|
|
|
|
/*
|
|
* Linux VFS namei operations.
|
|
*/
|
|
|
|
#include "protocol.h"
|
|
#include "orangefs-kernel.h"
|
|
|
|
/*
|
|
* Get a newly allocated inode to go with a negative dentry.
|
|
*/
|
|
static int orangefs_create(struct inode *dir,
|
|
struct dentry *dentry,
|
|
umode_t mode,
|
|
bool exclusive)
|
|
{
|
|
struct orangefs_inode_s *parent = ORANGEFS_I(dir);
|
|
struct orangefs_kernel_op_s *new_op;
|
|
struct orangefs_object_kref ref;
|
|
struct inode *inode;
|
|
struct iattr iattr;
|
|
int ret;
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG, "%s: %pd\n",
|
|
__func__,
|
|
dentry);
|
|
|
|
new_op = op_alloc(ORANGEFS_VFS_OP_CREATE);
|
|
if (!new_op)
|
|
return -ENOMEM;
|
|
|
|
new_op->upcall.req.create.parent_refn = parent->refn;
|
|
|
|
fill_default_sys_attrs(new_op->upcall.req.create.attributes,
|
|
ORANGEFS_TYPE_METAFILE, mode);
|
|
|
|
strncpy(new_op->upcall.req.create.d_name,
|
|
dentry->d_name.name, ORANGEFS_NAME_MAX - 1);
|
|
|
|
ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"%s: %pd: handle:%pU: fsid:%d: new_op:%p: ret:%d:\n",
|
|
__func__,
|
|
dentry,
|
|
&new_op->downcall.resp.create.refn.khandle,
|
|
new_op->downcall.resp.create.refn.fs_id,
|
|
new_op,
|
|
ret);
|
|
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ref = new_op->downcall.resp.create.refn;
|
|
|
|
inode = orangefs_new_inode(dir->i_sb, dir, S_IFREG | mode, 0, &ref);
|
|
if (IS_ERR(inode)) {
|
|
gossip_err("%s: Failed to allocate inode for file :%pd:\n",
|
|
__func__,
|
|
dentry);
|
|
ret = PTR_ERR(inode);
|
|
goto out;
|
|
}
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"%s: Assigned inode :%pU: for file :%pd:\n",
|
|
__func__,
|
|
get_khandle_from_ino(inode),
|
|
dentry);
|
|
|
|
d_instantiate_new(dentry, inode);
|
|
orangefs_set_timeout(dentry);
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"%s: dentry instantiated for %pd\n",
|
|
__func__,
|
|
dentry);
|
|
|
|
dir->i_mtime = dir->i_ctime = current_time(dir);
|
|
memset(&iattr, 0, sizeof iattr);
|
|
iattr.ia_valid |= ATTR_MTIME;
|
|
orangefs_inode_setattr(dir, &iattr);
|
|
mark_inode_dirty_sync(dir);
|
|
ret = 0;
|
|
out:
|
|
op_release(new_op);
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"%s: %pd: returning %d\n",
|
|
__func__,
|
|
dentry,
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Attempt to resolve an object name (dentry->d_name), parent handle, and
|
|
* fsid into a handle for the object.
|
|
*/
|
|
static struct dentry *orangefs_lookup(struct inode *dir, struct dentry *dentry,
|
|
unsigned int flags)
|
|
{
|
|
struct orangefs_inode_s *parent = ORANGEFS_I(dir);
|
|
struct orangefs_kernel_op_s *new_op;
|
|
struct inode *inode;
|
|
int ret = -EINVAL;
|
|
|
|
/*
|
|
* in theory we could skip a lookup here (if the intent is to
|
|
* create) in order to avoid a potentially failed lookup, but
|
|
* leaving it in can skip a valid lookup and try to create a file
|
|
* that already exists (e.g. the vfs already handles checking for
|
|
* -EEXIST on O_EXCL opens, which is broken if we skip this lookup
|
|
* in the create path)
|
|
*/
|
|
gossip_debug(GOSSIP_NAME_DEBUG, "%s called on %pd\n",
|
|
__func__, dentry);
|
|
|
|
if (dentry->d_name.len > (ORANGEFS_NAME_MAX - 1))
|
|
return ERR_PTR(-ENAMETOOLONG);
|
|
|
|
new_op = op_alloc(ORANGEFS_VFS_OP_LOOKUP);
|
|
if (!new_op)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
new_op->upcall.req.lookup.sym_follow = ORANGEFS_LOOKUP_LINK_NO_FOLLOW;
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG, "%s:%s:%d using parent %pU\n",
|
|
__FILE__,
|
|
__func__,
|
|
__LINE__,
|
|
&parent->refn.khandle);
|
|
new_op->upcall.req.lookup.parent_refn = parent->refn;
|
|
|
|
strncpy(new_op->upcall.req.lookup.d_name, dentry->d_name.name,
|
|
ORANGEFS_NAME_MAX - 1);
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"%s: doing lookup on %s under %pU,%d\n",
|
|
__func__,
|
|
new_op->upcall.req.lookup.d_name,
|
|
&new_op->upcall.req.lookup.parent_refn.khandle,
|
|
new_op->upcall.req.lookup.parent_refn.fs_id);
|
|
|
|
ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"Lookup Got %pU, fsid %d (ret=%d)\n",
|
|
&new_op->downcall.resp.lookup.refn.khandle,
|
|
new_op->downcall.resp.lookup.refn.fs_id,
|
|
ret);
|
|
|
|
if (ret == 0) {
|
|
orangefs_set_timeout(dentry);
|
|
inode = orangefs_iget(dir->i_sb, &new_op->downcall.resp.lookup.refn);
|
|
} else if (ret == -ENOENT) {
|
|
inode = NULL;
|
|
} else {
|
|
/* must be a non-recoverable error */
|
|
inode = ERR_PTR(ret);
|
|
}
|
|
|
|
op_release(new_op);
|
|
return d_splice_alias(inode, dentry);
|
|
}
|
|
|
|
/* return 0 on success; non-zero otherwise */
|
|
static int orangefs_unlink(struct inode *dir, struct dentry *dentry)
|
|
{
|
|
struct inode *inode = dentry->d_inode;
|
|
struct orangefs_inode_s *parent = ORANGEFS_I(dir);
|
|
struct orangefs_kernel_op_s *new_op;
|
|
struct iattr iattr;
|
|
int ret;
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"%s: called on %pd\n"
|
|
" (inode %pU): Parent is %pU | fs_id %d\n",
|
|
__func__,
|
|
dentry,
|
|
get_khandle_from_ino(inode),
|
|
&parent->refn.khandle,
|
|
parent->refn.fs_id);
|
|
|
|
new_op = op_alloc(ORANGEFS_VFS_OP_REMOVE);
|
|
if (!new_op)
|
|
return -ENOMEM;
|
|
|
|
new_op->upcall.req.remove.parent_refn = parent->refn;
|
|
strncpy(new_op->upcall.req.remove.d_name, dentry->d_name.name,
|
|
ORANGEFS_NAME_MAX - 1);
|
|
|
|
ret = service_operation(new_op, "orangefs_unlink",
|
|
get_interruptible_flag(inode));
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"%s: service_operation returned:%d:\n",
|
|
__func__,
|
|
ret);
|
|
|
|
op_release(new_op);
|
|
|
|
if (!ret) {
|
|
drop_nlink(inode);
|
|
|
|
dir->i_mtime = dir->i_ctime = current_time(dir);
|
|
memset(&iattr, 0, sizeof iattr);
|
|
iattr.ia_valid |= ATTR_MTIME;
|
|
orangefs_inode_setattr(dir, &iattr);
|
|
mark_inode_dirty_sync(dir);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int orangefs_symlink(struct inode *dir,
|
|
struct dentry *dentry,
|
|
const char *symname)
|
|
{
|
|
struct orangefs_inode_s *parent = ORANGEFS_I(dir);
|
|
struct orangefs_kernel_op_s *new_op;
|
|
struct orangefs_object_kref ref;
|
|
struct inode *inode;
|
|
struct iattr iattr;
|
|
int mode = 755;
|
|
int ret;
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG, "%s: called\n", __func__);
|
|
|
|
if (!symname)
|
|
return -EINVAL;
|
|
|
|
if (strlen(symname)+1 > ORANGEFS_NAME_MAX)
|
|
return -ENAMETOOLONG;
|
|
|
|
new_op = op_alloc(ORANGEFS_VFS_OP_SYMLINK);
|
|
if (!new_op)
|
|
return -ENOMEM;
|
|
|
|
new_op->upcall.req.sym.parent_refn = parent->refn;
|
|
|
|
fill_default_sys_attrs(new_op->upcall.req.sym.attributes,
|
|
ORANGEFS_TYPE_SYMLINK,
|
|
mode);
|
|
|
|
strncpy(new_op->upcall.req.sym.entry_name,
|
|
dentry->d_name.name,
|
|
ORANGEFS_NAME_MAX - 1);
|
|
strncpy(new_op->upcall.req.sym.target, symname, ORANGEFS_NAME_MAX - 1);
|
|
|
|
ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"Symlink Got ORANGEFS handle %pU on fsid %d (ret=%d)\n",
|
|
&new_op->downcall.resp.sym.refn.khandle,
|
|
new_op->downcall.resp.sym.refn.fs_id, ret);
|
|
|
|
if (ret < 0) {
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"%s: failed with error code %d\n",
|
|
__func__, ret);
|
|
goto out;
|
|
}
|
|
|
|
ref = new_op->downcall.resp.sym.refn;
|
|
|
|
inode = orangefs_new_inode(dir->i_sb, dir, S_IFLNK | mode, 0, &ref);
|
|
if (IS_ERR(inode)) {
|
|
gossip_err
|
|
("*** Failed to allocate orangefs symlink inode\n");
|
|
ret = PTR_ERR(inode);
|
|
goto out;
|
|
}
|
|
/*
|
|
* This is necessary because orangefs_inode_getattr will not
|
|
* re-read symlink size as it is impossible for it to change.
|
|
* Invalidating the cache does not help. orangefs_new_inode
|
|
* does not set the correct size (it does not know symname).
|
|
*/
|
|
inode->i_size = strlen(symname);
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"Assigned symlink inode new number of %pU\n",
|
|
get_khandle_from_ino(inode));
|
|
|
|
d_instantiate_new(dentry, inode);
|
|
orangefs_set_timeout(dentry);
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"Inode (Symlink) %pU -> %pd\n",
|
|
get_khandle_from_ino(inode),
|
|
dentry);
|
|
|
|
dir->i_mtime = dir->i_ctime = current_time(dir);
|
|
memset(&iattr, 0, sizeof iattr);
|
|
iattr.ia_valid |= ATTR_MTIME;
|
|
orangefs_inode_setattr(dir, &iattr);
|
|
mark_inode_dirty_sync(dir);
|
|
ret = 0;
|
|
out:
|
|
op_release(new_op);
|
|
return ret;
|
|
}
|
|
|
|
static int orangefs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
|
|
{
|
|
struct orangefs_inode_s *parent = ORANGEFS_I(dir);
|
|
struct orangefs_kernel_op_s *new_op;
|
|
struct orangefs_object_kref ref;
|
|
struct inode *inode;
|
|
struct iattr iattr;
|
|
int ret;
|
|
|
|
new_op = op_alloc(ORANGEFS_VFS_OP_MKDIR);
|
|
if (!new_op)
|
|
return -ENOMEM;
|
|
|
|
new_op->upcall.req.mkdir.parent_refn = parent->refn;
|
|
|
|
fill_default_sys_attrs(new_op->upcall.req.mkdir.attributes,
|
|
ORANGEFS_TYPE_DIRECTORY, mode);
|
|
|
|
strncpy(new_op->upcall.req.mkdir.d_name,
|
|
dentry->d_name.name, ORANGEFS_NAME_MAX - 1);
|
|
|
|
ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"Mkdir Got ORANGEFS handle %pU on fsid %d\n",
|
|
&new_op->downcall.resp.mkdir.refn.khandle,
|
|
new_op->downcall.resp.mkdir.refn.fs_id);
|
|
|
|
if (ret < 0) {
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"%s: failed with error code %d\n",
|
|
__func__, ret);
|
|
goto out;
|
|
}
|
|
|
|
ref = new_op->downcall.resp.mkdir.refn;
|
|
|
|
inode = orangefs_new_inode(dir->i_sb, dir, S_IFDIR | mode, 0, &ref);
|
|
if (IS_ERR(inode)) {
|
|
gossip_err("*** Failed to allocate orangefs dir inode\n");
|
|
ret = PTR_ERR(inode);
|
|
goto out;
|
|
}
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"Assigned dir inode new number of %pU\n",
|
|
get_khandle_from_ino(inode));
|
|
|
|
d_instantiate_new(dentry, inode);
|
|
orangefs_set_timeout(dentry);
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"Inode (Directory) %pU -> %pd\n",
|
|
get_khandle_from_ino(inode),
|
|
dentry);
|
|
|
|
/*
|
|
* NOTE: we have no good way to keep nlink consistent for directories
|
|
* across clients; keep constant at 1.
|
|
*/
|
|
dir->i_mtime = dir->i_ctime = current_time(dir);
|
|
memset(&iattr, 0, sizeof iattr);
|
|
iattr.ia_valid |= ATTR_MTIME;
|
|
orangefs_inode_setattr(dir, &iattr);
|
|
mark_inode_dirty_sync(dir);
|
|
out:
|
|
op_release(new_op);
|
|
return ret;
|
|
}
|
|
|
|
static int orangefs_rename(struct inode *old_dir,
|
|
struct dentry *old_dentry,
|
|
struct inode *new_dir,
|
|
struct dentry *new_dentry,
|
|
unsigned int flags)
|
|
{
|
|
struct orangefs_kernel_op_s *new_op;
|
|
struct iattr iattr;
|
|
int ret;
|
|
|
|
if (flags)
|
|
return -EINVAL;
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"orangefs_rename: called (%pd2 => %pd2) ct=%d\n",
|
|
old_dentry, new_dentry, d_count(new_dentry));
|
|
|
|
new_dir->i_mtime = new_dir->i_ctime = current_time(new_dir);
|
|
memset(&iattr, 0, sizeof iattr);
|
|
iattr.ia_valid |= ATTR_MTIME;
|
|
orangefs_inode_setattr(new_dir, &iattr);
|
|
mark_inode_dirty_sync(new_dir);
|
|
|
|
new_op = op_alloc(ORANGEFS_VFS_OP_RENAME);
|
|
if (!new_op)
|
|
return -EINVAL;
|
|
|
|
new_op->upcall.req.rename.old_parent_refn = ORANGEFS_I(old_dir)->refn;
|
|
new_op->upcall.req.rename.new_parent_refn = ORANGEFS_I(new_dir)->refn;
|
|
|
|
strncpy(new_op->upcall.req.rename.d_old_name,
|
|
old_dentry->d_name.name,
|
|
ORANGEFS_NAME_MAX - 1);
|
|
strncpy(new_op->upcall.req.rename.d_new_name,
|
|
new_dentry->d_name.name,
|
|
ORANGEFS_NAME_MAX - 1);
|
|
|
|
ret = service_operation(new_op,
|
|
"orangefs_rename",
|
|
get_interruptible_flag(old_dentry->d_inode));
|
|
|
|
gossip_debug(GOSSIP_NAME_DEBUG,
|
|
"orangefs_rename: got downcall status %d\n",
|
|
ret);
|
|
|
|
if (new_dentry->d_inode)
|
|
new_dentry->d_inode->i_ctime = current_time(new_dentry->d_inode);
|
|
|
|
op_release(new_op);
|
|
return ret;
|
|
}
|
|
|
|
/* ORANGEFS implementation of VFS inode operations for directories */
|
|
const struct inode_operations orangefs_dir_inode_operations = {
|
|
.lookup = orangefs_lookup,
|
|
.get_acl = orangefs_get_acl,
|
|
.set_acl = orangefs_set_acl,
|
|
.create = orangefs_create,
|
|
.unlink = orangefs_unlink,
|
|
.symlink = orangefs_symlink,
|
|
.mkdir = orangefs_mkdir,
|
|
.rmdir = orangefs_unlink,
|
|
.rename = orangefs_rename,
|
|
.setattr = orangefs_setattr,
|
|
.getattr = orangefs_getattr,
|
|
.listxattr = orangefs_listxattr,
|
|
.permission = orangefs_permission,
|
|
.update_time = orangefs_update_time,
|
|
};
|