static noinline_for_stack
int cpup_iattr(struct dentry *dst, aufs_bindex_t bindex, struct dentry *h_src,
struct au_cpup_reg_attr *h_src_attr)
{
int err, sbits;
struct iattr ia;
struct path h_path;
struct inode *h_isrc, *h_idst;
struct kstat *h_st;
h_path.dentry = au_h_dptr(dst, bindex);
h_idst = h_path.dentry->d_inode;
h_path.mnt = au_sbr_mnt(dst->d_sb, bindex);
h_isrc = h_src->d_inode;
ia.ia_valid = ATTR_FORCE | ATTR_UID | ATTR_GID
| ATTR_ATIME | ATTR_MTIME
| ATTR_ATIME_SET | ATTR_MTIME_SET;
if (h_src_attr && h_src_attr->valid) {
h_st = &h_src_attr->st;
ia.ia_uid = h_st->uid;
ia.ia_gid = h_st->gid;
ia.ia_atime = h_st->atime;
ia.ia_mtime = h_st->mtime;
if (h_idst->i_mode != h_st->mode
&& !S_ISLNK(h_idst->i_mode)) {
ia.ia_valid |= ATTR_MODE;
ia.ia_mode = h_st->mode;
}
sbits = !!(h_st->mode & (S_ISUID | S_ISGID));
au_cpup_attr_flags(h_idst, h_src_attr->iflags);
} else {
ia.ia_uid = h_isrc->i_uid;
ia.ia_gid = h_isrc->i_gid;
ia.ia_atime = h_isrc->i_atime;
ia.ia_mtime = h_isrc->i_mtime;
if (h_idst->i_mode != h_isrc->i_mode
&& !S_ISLNK(h_idst->i_mode)) {
ia.ia_valid |= ATTR_MODE;
ia.ia_mode = h_isrc->i_mode;
}
sbits = !!(h_isrc->i_mode & (S_ISUID | S_ISGID));
au_cpup_attr_flags(h_idst, h_isrc->i_flags);
}
err = vfsub_notify_change(&h_path, &ia);
/* is this nfs only? */
if (!err && sbits && au_test_nfs(h_path.dentry->d_sb)) {
ia.ia_valid = ATTR_FORCE | ATTR_MODE;
ia.ia_mode = h_isrc->i_mode;
err = vfsub_notify_change(&h_path, &ia);
}
return err;
}
/* subset of cpup_attr() */
static noinline_for_stack
int au_cpdown_attr(struct path *h_path, struct dentry *h_src)
{
int err, sbits;
struct iattr ia;
struct inode *h_isrc;
h_isrc = h_src->d_inode;
ia.ia_valid = ATTR_FORCE | ATTR_MODE | ATTR_UID | ATTR_GID;
ia.ia_mode = h_isrc->i_mode;
ia.ia_uid = h_isrc->i_uid;
ia.ia_gid = h_isrc->i_gid;
sbits = !!(ia.ia_mode & (S_ISUID | S_ISGID));
au_cpup_attr_flags(h_path->dentry->d_inode, h_isrc);
err = vfsub_sio_notify_change(h_path, &ia);
/* is this nfs only? */
if (!err && sbits && au_test_nfs(h_path->dentry->d_sb)) {
ia.ia_valid = ATTR_FORCE | ATTR_MODE;
ia.ia_mode = h_isrc->i_mode;
err = vfsub_sio_notify_change(h_path, &ia);
}
return err;
}
static noinline_for_stack
int cpup_iattr(struct dentry *dst, aufs_bindex_t bindex, struct dentry *h_src)
{
int err, sbits;
struct iattr ia;
struct path h_path;
struct inode *h_isrc;
h_path.dentry = au_h_dptr(dst, bindex);
h_path.mnt = au_sbr_mnt(dst->d_sb, bindex);
h_isrc = h_src->d_inode;
ia.ia_valid = ATTR_FORCE | ATTR_MODE | ATTR_UID | ATTR_GID
| ATTR_ATIME | ATTR_MTIME
| ATTR_ATIME_SET | ATTR_MTIME_SET;
ia.ia_mode = h_isrc->i_mode;
ia.ia_uid = h_isrc->i_uid;
ia.ia_gid = h_isrc->i_gid;
ia.ia_atime = h_isrc->i_atime;
ia.ia_mtime = h_isrc->i_mtime;
sbits = !!(ia.ia_mode & (S_ISUID | S_ISGID));
au_cpup_attr_flags(h_path.dentry->d_inode, h_isrc);
err = vfsub_notify_change(&h_path, &ia);
/* is this nfs only? */
if (!err && sbits && au_test_nfs(h_path.dentry->d_sb)) {
ia.ia_valid = ATTR_FORCE | ATTR_MODE;
ia.ia_mode = h_isrc->i_mode;
err = vfsub_notify_change(&h_path, &ia);
}
return err;
}
void au_cpup_attr_changeable(struct inode *inode)
{
struct inode *h_inode;
h_inode = au_h_iptr(inode, au_ibstart(inode));
inode->i_mode = h_inode->i_mode;
inode->i_uid = h_inode->i_uid;
inode->i_gid = h_inode->i_gid;
au_cpup_attr_timesizes(inode);
au_cpup_attr_flags(inode, h_inode);
}
void au_cpup_attr_changeable(struct inode *inode)
{
struct inode *h_inode;
LKTRTrace("i%lu\n", inode->i_ino);
/* todo? IMustLock(inode); */
h_inode = au_h_iptr(inode, au_ibstart(inode));
AuDebugOn(!h_inode);
inode->i_mode = h_inode->i_mode;
inode->i_uid = h_inode->i_uid;
inode->i_gid = h_inode->i_gid;
au_cpup_attr_timesizes(inode);
au_cpup_attr_flags(inode, h_inode);
}
static noinline_for_stack
int cpup_iattr(struct dentry *dst, aufs_bindex_t bindex, struct dentry *h_src,
struct au_hinode *hdir, struct vfsub_args *vargs)
{
int err, sbits;
struct dentry *h_dst;
struct iattr ia;
struct inode *h_isrc, *h_idst;
h_dst = au_h_dptr(dst, bindex);
LKTRTrace("%.*s\n", AuDLNPair(h_dst));
h_idst = h_dst->d_inode;
/* todo? IMustLock(h_idst); */
h_isrc = h_src->d_inode;
/* todo? IMustLock(h_isrc); */
ia.ia_valid = ATTR_FORCE | ATTR_MODE | ATTR_UID | ATTR_GID
| ATTR_ATIME | ATTR_MTIME
| ATTR_ATIME_SET | ATTR_MTIME_SET;
ia.ia_mode = h_isrc->i_mode;
ia.ia_uid = h_isrc->i_uid;
ia.ia_gid = h_isrc->i_gid;
ia.ia_atime = h_isrc->i_atime;
ia.ia_mtime = h_isrc->i_mtime;
sbits = !!(ia.ia_mode & (S_ISUID | S_ISGID));
au_cpup_attr_flags(h_idst, h_isrc);
vfsub_args_reinit(vargs);
vfsub_ign_hinode(vargs, IN_ATTRIB, hdir);
err = vfsub_notify_change(h_dst, &ia, vargs);
/* is this nfs only? */
if (!err && sbits && au_test_nfs(h_dst->d_sb)) {
ia.ia_valid = ATTR_FORCE | ATTR_MODE;
ia.ia_mode = h_isrc->i_mode;
vfsub_args_reinit(vargs);
vfsub_ign_hinode(vargs, IN_ATTRIB, hdir);
err = vfsub_notify_change(h_dst, &ia, vargs);
}
AuTraceErr(err);
return err;
}
static noinline_for_stack
int cpup_iattr(struct dentry *dst, aufs_bindex_t bindex, struct dentry *h_src,
struct au_cpup_reg_attr *h_src_attr)
{
int err, sbits, icex;
unsigned int mnt_flags;
unsigned char verbose;
struct iattr ia;
struct path h_path;
struct inode *h_isrc, *h_idst;
struct kstat *h_st;
struct au_branch *br;
h_path.dentry = au_h_dptr(dst, bindex);
h_idst = d_inode(h_path.dentry);
br = au_sbr(dst->d_sb, bindex);
h_path.mnt = au_br_mnt(br);
h_isrc = d_inode(h_src);
ia.ia_valid = ATTR_FORCE | ATTR_UID | ATTR_GID
| ATTR_ATIME | ATTR_MTIME
| ATTR_ATIME_SET | ATTR_MTIME_SET;
if (h_src_attr && h_src_attr->valid) {
h_st = &h_src_attr->st;
ia.ia_uid = h_st->uid;
ia.ia_gid = h_st->gid;
ia.ia_atime = h_st->atime;
ia.ia_mtime = h_st->mtime;
if (h_idst->i_mode != h_st->mode
&& !S_ISLNK(h_idst->i_mode)) {
ia.ia_valid |= ATTR_MODE;
ia.ia_mode = h_st->mode;
}
sbits = !!(h_st->mode & (S_ISUID | S_ISGID));
au_cpup_attr_flags(h_idst, h_src_attr->iflags);
} else {
ia.ia_uid = h_isrc->i_uid;
ia.ia_gid = h_isrc->i_gid;
ia.ia_atime = h_isrc->i_atime;
ia.ia_mtime = h_isrc->i_mtime;
if (h_idst->i_mode != h_isrc->i_mode
&& !S_ISLNK(h_idst->i_mode)) {
ia.ia_valid |= ATTR_MODE;
ia.ia_mode = h_isrc->i_mode;
}
sbits = !!(h_isrc->i_mode & (S_ISUID | S_ISGID));
au_cpup_attr_flags(h_idst, h_isrc->i_flags);
}
/* no delegation since it is just created */
err = vfsub_notify_change(&h_path, &ia, /*delegated*/NULL);
/* is this nfs only? */
if (!err && sbits && au_test_nfs(h_path.dentry->d_sb)) {
ia.ia_valid = ATTR_FORCE | ATTR_MODE;
ia.ia_mode = h_isrc->i_mode;
err = vfsub_notify_change(&h_path, &ia, /*delegated*/NULL);
}
icex = br->br_perm & AuBrAttr_ICEX;
if (!err) {
mnt_flags = au_mntflags(dst->d_sb);
verbose = !!au_opt_test(mnt_flags, VERBOSE);
err = au_cpup_xattr(h_path.dentry, h_src, icex, verbose);
}
return err;
}
