mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-05 18:14:07 +08:00
091a0f2785
+ fix some sparse warnings + cleanup some code formatting + fix up some attribute/meta-data related code -----BEGIN PGP SIGNATURE----- iQIbBAABAgAGBQJbGUIEAAoJEM9EDqnrzg2+3ygP9RPTSd2Mh/vyzokxmBacT/iW CrJXdrJkG+Yb/adGuT2UAPIMg73aGLqAPMN8dHhfhzotdd1BgrhMK+zZECUClwOf dxQCA+RFn1YofXMojqWYAFtJ6ptJgMDJxje62hS+QCWzDz0IM1PYr2qCQPs1IRmb CWVuP1igwt82VIVLey8YEuI5yuOnFOSO+7rKi7TPsY991oPxxz2brmrMuiW2Dg0W 6MCP19XUBpxdDJWtL2GWXAwgkP9JYkhokwkAloqWXoOpDUf0EniomuRMBLOtISoO tJfgnYIN+7sRTSbqsNtKQrm7f8/B01t+tGuzJYDGlUls02V3DkS9EjypvP+VZ6e9 bsN3oQHD6xFx/7egxUVBRFD6Hw83j58DH1N+79whVrU3ospkj3z0QX1g6zqgY2ew mgileXBAJQD+SUr0F42QqeFVexjky9dKtDZLQe42jxLZXpPly2t737h4ZatdW3ro yKJLUzuHbLGQzgGJOSQsSfmwUkSeTilgCV6WFyJWinlxUWQEkp0F+1u5B4RX87BQ SHUz5O3pWDpz+kLtauzsVlXDbBQfZHimIbnKWHZoQ5dER/LQfWBfvOz+CT/5uBBg qhdPZ4wKLD4qvzByuZJKyYmPXpUoOWh/i5QcvJ8B8rNxCx8XEP/VoikjUqkCUajb 4HFQwnZtnQOLfnufTTw= =vwvd -----END PGP SIGNATURE----- Merge tag 'for-linus-4.18-ofs' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux Pull orangefs updates from Mike Marshall: "Fixes and cleanups: - fix some sparse warnings - cleanup some code formatting - fix up some attribute/meta-data related code" * tag 'for-linus-4.18-ofs' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux: orangefs: use sparse annotations for holding locks across function calls. orangefs: make debug_help_fops static orangefs: remove unused function orangefs_get_bufmap_init orangefs: specify user pointers when using dev_map_desc and bufmap orangefs: formatting cleanups orangefs: set i_size on new symlink orangefs: report attributes_mask and attributes for statx orangefs: make struct orangefs_file_vm_ops static orangefs: revamp block sizes
449 lines
12 KiB
C
449 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;
|
|
op_release(new_op);
|
|
|
|
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);
|
|
ORANGEFS_I(inode)->getattr_time = jiffies - 1;
|
|
ORANGEFS_I(inode)->getattr_mask = STATX_BASIC_STATS;
|
|
|
|
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:
|
|
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;
|
|
op_release(new_op);
|
|
|
|
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);
|
|
ORANGEFS_I(inode)->getattr_time = jiffies - 1;
|
|
ORANGEFS_I(inode)->getattr_mask = STATX_BASIC_STATS;
|
|
|
|
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:
|
|
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;
|
|
op_release(new_op);
|
|
|
|
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);
|
|
ORANGEFS_I(inode)->getattr_time = jiffies - 1;
|
|
ORANGEFS_I(inode)->getattr_mask = STATX_BASIC_STATS;
|
|
|
|
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:
|
|
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;
|
|
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));
|
|
|
|
ORANGEFS_I(new_dentry->d_parent->d_inode)->getattr_time = jiffies - 1;
|
|
|
|
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,
|
|
};
|