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ceph: Get rid of d_find_alias in ceph_set_acl 

Create a variant of ceph_setattr that takes an inode instead of a
dentry.  Change __ceph_setxattr (and also __ceph_removexattr) to take an
inode instead of a dentry.  Use those in ceph_set_acl so that we no
longer need a dentry there.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Andreas Gruenbacher 2016-04-14 00:30:16 +02:00 committed by Al Viro
parent ce23e64013
commit a26feccaba
4 changed files with 29 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
fs/ceph/acl.c
View File

@ -90,7 +90,6 @@ int ceph_set_acl(struct inode *inode, struct posix_acl *acl, int type)
char *value = NULL;
struct iattr newattrs;
umode_t new_mode = inode->i_mode, old_mode = inode->i_mode;
struct dentry *dentry;
switch (type) {
case ACL_TYPE_ACCESS:
@ -128,29 +127,26 @@ int ceph_set_acl(struct inode *inode, struct posix_acl *acl, int type)
goto out_free;
}
dentry = d_find_alias(inode);
if (new_mode != old_mode) {
newattrs.ia_mode = new_mode;
newattrs.ia_valid = ATTR_MODE;
ret = ceph_setattr(dentry, &newattrs);
ret = __ceph_setattr(inode, &newattrs);
if (ret)
goto out_dput;
goto out_free;
}
ret = __ceph_setxattr(dentry, name, value, size, 0);
ret = __ceph_setxattr(inode, name, value, size, 0);
if (ret) {
if (new_mode != old_mode) {
newattrs.ia_mode = old_mode;
newattrs.ia_valid = ATTR_MODE;
ceph_setattr(dentry, &newattrs);
__ceph_setattr(inode, &newattrs);
}
goto out_dput;
goto out_free;
}
ceph_set_cached_acl(inode, type, acl);
out_dput:
dput(dentry);
out_free:
kfree(value);
out:

16
fs/ceph/inode.c
View File

@ -1776,16 +1776,12 @@ static const struct inode_operations ceph_symlink_iops = {
.removexattr = ceph_removexattr,
};
/*
* setattr
*/
int ceph_setattr(struct dentry *dentry, struct iattr *attr)
int __ceph_setattr(struct inode *inode, struct iattr *attr)
{
struct inode *inode = d_inode(dentry);
struct ceph_inode_info *ci = ceph_inode(inode);
const unsigned int ia_valid = attr->ia_valid;
struct ceph_mds_request *req;
struct ceph_mds_client *mdsc = ceph_sb_to_client(dentry->d_sb)->mdsc;
struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
struct ceph_cap_flush *prealloc_cf;
int issued;
int release = 0, dirtied = 0;
@ -2009,6 +2005,14 @@ int ceph_setattr(struct dentry *dentry, struct iattr *attr)
return err;
}
/*
* setattr
*/
int ceph_setattr(struct dentry *dentry, struct iattr *attr)
{
return __ceph_setattr(d_inode(dentry), attr);
}
/*
* Verify that we have a lease on the given mask. If not,
* do a getattr against an mds.

4
fs/ceph/super.h
View File

@ -785,6 +785,7 @@ static inline int ceph_do_getattr(struct inode *inode, int mask, bool force)
return __ceph_do_getattr(inode, NULL, mask, force);
}
extern int ceph_permission(struct inode *inode, int mask);
extern int __ceph_setattr(struct inode *inode, struct iattr *attr);
extern int ceph_setattr(struct dentry *dentry, struct iattr *attr);
extern int ceph_getattr(struct vfsmount *mnt, struct dentry *dentry,
struct kstat *stat);
@ -792,9 +793,8 @@ extern int ceph_getattr(struct vfsmount *mnt, struct dentry *dentry,
/* xattr.c */
extern int ceph_setxattr(struct dentry *, const char *, const void *,
size_t, int);
int __ceph_setxattr(struct dentry *, const char *, const void *, size_t, int);
int __ceph_setxattr(struct inode *, const char *, const void *, size_t, int);
ssize_t __ceph_getxattr(struct inode *, const char *, void *, size_t);
int __ceph_removexattr(struct dentry *, const char *);
extern ssize_t ceph_getxattr(struct dentry *, struct inode *, const char *, void *, size_t);
extern ssize_t ceph_listxattr(struct dentry *, char *, size_t);
extern int ceph_removexattr(struct dentry *, const char *);

28
fs/ceph/xattr.c
View File

@ -877,11 +877,10 @@ ssize_t ceph_listxattr(struct dentry *dentry, char *names, size_t size)
return err;
}
static int ceph_sync_setxattr(struct dentry *dentry, const char *name,
static int ceph_sync_setxattr(struct inode *inode, const char *name,
const char *value, size_t size, int flags)
{
struct ceph_fs_client *fsc = ceph_sb_to_client(dentry->d_sb);
struct inode *inode = d_inode(dentry);
struct ceph_fs_client *fsc = ceph_sb_to_client(inode->i_sb);
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_mds_request *req;
struct ceph_mds_client *mdsc = fsc->mdsc;
@ -939,13 +938,12 @@ static int ceph_sync_setxattr(struct dentry *dentry, const char *name,
return err;
}
int __ceph_setxattr(struct dentry *dentry, const char *name,
int __ceph_setxattr(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
struct inode *inode = d_inode(dentry);
struct ceph_vxattr *vxattr;
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_mds_client *mdsc = ceph_sb_to_client(dentry->d_sb)->mdsc;
struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
struct ceph_cap_flush *prealloc_cf = NULL;
int issued;
int err;
@ -1056,7 +1054,7 @@ int __ceph_setxattr(struct dentry *dentry, const char *name,
"during filling trace\n", inode);
err = -EBUSY;
} else {
err = ceph_sync_setxattr(dentry, name, value, size, flags);
err = ceph_sync_setxattr(inode, name, value, size, flags);
}
out:
ceph_free_cap_flush(prealloc_cf);
@ -1078,14 +1076,13 @@ int ceph_setxattr(struct dentry *dentry, const char *name,
if (size == 0)
value = ""; /* empty EA, do not remove */
return __ceph_setxattr(dentry, name, value, size, flags);
return __ceph_setxattr(d_inode(dentry), name, value, size, flags);
}
static int ceph_send_removexattr(struct dentry *dentry, const char *name)
static int ceph_send_removexattr(struct inode *inode, const char *name)
{
struct ceph_fs_client *fsc = ceph_sb_to_client(dentry->d_sb);
struct ceph_fs_client *fsc = ceph_sb_to_client(inode->i_sb);
struct ceph_mds_client *mdsc = fsc->mdsc;
struct inode *inode = d_inode(dentry);
struct ceph_mds_request *req;
int err;
@ -1106,12 +1103,11 @@ static int ceph_send_removexattr(struct dentry *dentry, const char *name)
return err;
}
int __ceph_removexattr(struct dentry *dentry, const char *name)
static int __ceph_removexattr(struct inode *inode, const char *name)
{
struct inode *inode = d_inode(dentry);
struct ceph_vxattr *vxattr;
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_mds_client *mdsc = ceph_sb_to_client(dentry->d_sb)->mdsc;
struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
struct ceph_cap_flush *prealloc_cf = NULL;
int issued;
int err;
@ -1192,7 +1188,7 @@ int __ceph_removexattr(struct dentry *dentry, const char *name)
if (lock_snap_rwsem)
up_read(&mdsc->snap_rwsem);
ceph_free_cap_flush(prealloc_cf);
err = ceph_send_removexattr(dentry, name);
err = ceph_send_removexattr(inode, name);
return err;
}
@ -1204,7 +1200,7 @@ int ceph_removexattr(struct dentry *dentry, const char *name)
if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))
return generic_removexattr(dentry, name);
return __ceph_removexattr(dentry, name);
return __ceph_removexattr(d_inode(dentry), name);
}
#ifdef CONFIG_SECURITY