/*
* Q_SETQUOTA - assign an entire dqblk structure.
*/
static int
_setquota(struct thread *td, struct mount *mp, u_long id, int type,
struct dqblk64 *dqb)
{
struct dquot *dq;
struct dquot *ndq;
struct ufsmount *ump;
struct dqblk64 newlim;
int error;
error = priv_check(td, PRIV_VFS_SETQUOTA);
if (error)
return (error);
newlim = *dqb;
ndq = NODQUOT;
ump = VFSTOUFS(mp);
error = dqget(NULLVP, id, ump, type, &ndq);
if (error)
return (error);
dq = ndq;
DQI_LOCK(dq);
DQI_WAIT(dq, PINOD+1, "setqta");
/*
* Copy all but the current values.
* Reset time limit if previously had no soft limit or were
* under it, but now have a soft limit and are over it.
*/
newlim.dqb_curblocks = dq->dq_curblocks;
newlim.dqb_curinodes = dq->dq_curinodes;
if (dq->dq_id != 0) {
newlim.dqb_btime = dq->dq_btime;
newlim.dqb_itime = dq->dq_itime;
}
if (newlim.dqb_bsoftlimit &&
dq->dq_curblocks >= newlim.dqb_bsoftlimit &&
(dq->dq_bsoftlimit == 0 || dq->dq_curblocks < dq->dq_bsoftlimit))
newlim.dqb_btime = time_second + ump->um_btime[type];
if (newlim.dqb_isoftlimit &&
dq->dq_curinodes >= newlim.dqb_isoftlimit &&
(dq->dq_isoftlimit == 0 || dq->dq_curinodes < dq->dq_isoftlimit))
newlim.dqb_itime = time_second + ump->um_itime[type];
dq->dq_dqb = newlim;
if (dq->dq_curblocks < dq->dq_bsoftlimit)
dq->dq_flags &= ~DQ_BLKS;
if (dq->dq_curinodes < dq->dq_isoftlimit)
dq->dq_flags &= ~DQ_INODS;
if (dq->dq_isoftlimit == 0 && dq->dq_bsoftlimit == 0 &&
dq->dq_ihardlimit == 0 && dq->dq_bhardlimit == 0)
dq->dq_flags |= DQ_FAKE;
else
dq->dq_flags &= ~DQ_FAKE;
dq->dq_flags |= DQ_MOD;
DQI_UNLOCK(dq);
dqrele(NULLVP, dq);
return (0);
}
/*
* Q_GETQUOTA - return current values in a dqblk structure.
*/
int
getquota(struct mount *mp, u_long id, int type, void *addr)
{
struct dquot *dq;
int error;
if ((error = dqget(NULLVP, id, VFSTOUFS(mp), type, &dq)) != 0)
return (error);
error = copyout((void *)&dq->dq_dqb, addr, sizeof (struct dqblk));
dqrele(NULLVP, dq);
return (error);
}
/*
* Set up the quotas for an inode.
*
* This routine completely defines the semantics of quotas.
* If other criterion want to be used to establish quotas, the
* MAXQUOTAS value in quota.h should be increased, and the
* additional dquots set up here.
*/
int
getinoquota(struct inode *ip)
{
struct ufsmount *ump;
struct vnode *vp;
int error;
vp = ITOV(ip);
/*
* Disk quotas must be turned off for system files. Currently
* snapshot and quota files.
*/
if ((vp->v_vflag & VV_SYSTEM) != 0)
return (0);
/*
* XXX: Turn off quotas for files with a negative UID or GID.
* This prevents the creation of 100GB+ quota files.
*/
if ((int)ip->i_uid < 0 || (int)ip->i_gid < 0)
return (0);
ump = VFSTOUFS(vp->v_mount);
/*
* Set up the user quota based on file uid.
* EINVAL means that quotas are not enabled.
*/
if ((error =
dqget(vp, ip->i_uid, ump, USRQUOTA, &ip->i_dquot[USRQUOTA])) &&
error != EINVAL)
return (error);
/*
* Set up the group quota based on file gid.
* EINVAL means that quotas are not enabled.
*/
if ((error =
dqget(vp, ip->i_gid, ump, GRPQUOTA, &ip->i_dquot[GRPQUOTA])) &&
error != EINVAL)
return (error);
return (0);
}
/*
* Q_SETQUOTA - assign an entire dqblk structure.
*/
int
setquota(struct mount *mp, u_long id, int type, void *addr)
{
struct dquot *dq;
struct dquot *ndq;
struct ufsmount *ump = VFSTOUFS(mp);
struct dqblk newlim;
int error;
error = copyin(addr, (void *)&newlim, sizeof (struct dqblk));
if (error)
return (error);
if ((error = dqget(NULLVP, id, ump, type, &ndq)) != 0)
return (error);
dq = ndq;
mutex_enter(&dq->dq_interlock);
/*
* Copy all but the current values.
* Reset time limit if previously had no soft limit or were
* under it, but now have a soft limit and are over it.
*/
newlim.dqb_curblocks = dq->dq_curblocks;
newlim.dqb_curinodes = dq->dq_curinodes;
if (dq->dq_id != 0) {
newlim.dqb_btime = dq->dq_btime;
newlim.dqb_itime = dq->dq_itime;
}
if (newlim.dqb_bsoftlimit &&
dq->dq_curblocks >= newlim.dqb_bsoftlimit &&
(dq->dq_bsoftlimit == 0 || dq->dq_curblocks < dq->dq_bsoftlimit))
newlim.dqb_btime = time_second + ump->um_btime[type];
if (newlim.dqb_isoftlimit &&
dq->dq_curinodes >= newlim.dqb_isoftlimit &&
(dq->dq_isoftlimit == 0 || dq->dq_curinodes < dq->dq_isoftlimit))
newlim.dqb_itime = time_second + ump->um_itime[type];
dq->dq_dqb = newlim;
if (dq->dq_curblocks < dq->dq_bsoftlimit)
dq->dq_flags &= ~DQ_BLKS;
if (dq->dq_curinodes < dq->dq_isoftlimit)
dq->dq_flags &= ~DQ_INODS;
if (dq->dq_isoftlimit == 0 && dq->dq_bsoftlimit == 0 &&
dq->dq_ihardlimit == 0 && dq->dq_bhardlimit == 0)
dq->dq_flags |= DQ_FAKE;
else
dq->dq_flags &= ~DQ_FAKE;
dq->dq_flags |= DQ_MOD;
mutex_exit(&dq->dq_interlock);
dqrele(NULLVP, dq);
return (0);
}
/*
* Q_SETUSE - set current inode and block usage.
*/
static int
_setuse(struct thread *td, struct mount *mp, u_long id, int type,
struct dqblk64 *dqb)
{
struct dquot *dq;
struct ufsmount *ump;
struct dquot *ndq;
struct dqblk64 usage;
int error;
error = priv_check(td, PRIV_UFS_SETUSE);
if (error)
return (error);
usage = *dqb;
ump = VFSTOUFS(mp);
ndq = NODQUOT;
error = dqget(NULLVP, id, ump, type, &ndq);
if (error)
return (error);
dq = ndq;
DQI_LOCK(dq);
DQI_WAIT(dq, PINOD+1, "setuse");
/*
* Reset time limit if have a soft limit and were
* previously under it, but are now over it.
*/
if (dq->dq_bsoftlimit && dq->dq_curblocks < dq->dq_bsoftlimit &&
usage.dqb_curblocks >= dq->dq_bsoftlimit)
dq->dq_btime = time_second + ump->um_btime[type];
if (dq->dq_isoftlimit && dq->dq_curinodes < dq->dq_isoftlimit &&
usage.dqb_curinodes >= dq->dq_isoftlimit)
dq->dq_itime = time_second + ump->um_itime[type];
dq->dq_curblocks = usage.dqb_curblocks;
dq->dq_curinodes = usage.dqb_curinodes;
if (dq->dq_curblocks < dq->dq_bsoftlimit)
dq->dq_flags &= ~DQ_BLKS;
if (dq->dq_curinodes < dq->dq_isoftlimit)
dq->dq_flags &= ~DQ_INODS;
dq->dq_flags |= DQ_MOD;
DQI_UNLOCK(dq);
dqrele(NULLVP, dq);
return (0);
}
/*
* Set up the quotas for an inode.
*
* This routine completely defines the semantics of quotas.
* If other criterion want to be used to establish quotas, the
* MAXQUOTAS value in quotas.h should be increased, and the
* additional dquots set up here.
*/
int
getinoquota(struct inode *ip)
{
struct ufsmount *ump = ip->i_ump;
struct vnode *vp = ITOV(ip);
int i, error;
u_int32_t ino_ids[MAXQUOTAS];
/*
* To avoid deadlocks never update quotas for quota files
* on the same file system
*/
for (i = 0; i < MAXQUOTAS; i++)
if (ITOV(ip) == ump->um_quotas[i])
return 0;
ino_ids[USRQUOTA] = ip->i_uid;
ino_ids[GRPQUOTA] = ip->i_gid;
for (i = 0; i < MAXQUOTAS; i++) {
/*
* If the file id changed the quota needs update.
*/
if (ip->i_dquot[i] != NODQUOT &&
ip->i_dquot[i]->dq_id != ino_ids[i]) {
dqrele(ITOV(ip), ip->i_dquot[i]);
ip->i_dquot[i] = NODQUOT;
}
/*
* Set up the quota based on file id.
* EINVAL means that quotas are not enabled.
*/
if (ip->i_dquot[i] == NODQUOT &&
(error = dqget(vp, ino_ids[i], ump, i, &ip->i_dquot[i])) &&
error != EINVAL)
return (error);
}
return 0;
}
/*
* Q_GETQUOTA - return current values in a dqblk structure.
*/
static int
_getquota(struct thread *td, struct mount *mp, u_long id, int type,
struct dqblk64 *dqb)
{
struct dquot *dq;
int error;
switch (type) {
case USRQUOTA:
if ((td->td_ucred->cr_uid != id) && !unprivileged_get_quota) {
error = priv_check(td, PRIV_VFS_GETQUOTA);
if (error)
return (error);
}
break;
case GRPQUOTA:
if (!groupmember(id, td->td_ucred) &&
!unprivileged_get_quota) {
error = priv_check(td, PRIV_VFS_GETQUOTA);
if (error)
return (error);
}
break;
default:
return (EINVAL);
}
dq = NODQUOT;
error = dqget(NULLVP, id, VFSTOUFS(mp), type, &dq);
if (error)
return (error);
*dqb = dq->dq_dqb;
dqrele(NULLVP, dq);
return (error);
}
/*
* Q_SETUSE - set current inode and block usage.
*/
int
setuse(struct mount *mp, u_long id, int type, void *addr)
{
struct dquot *dq;
struct ufsmount *ump = VFSTOUFS(mp);
struct dquot *ndq;
struct dqblk usage;
int error;
error = copyin(addr, (void *)&usage, sizeof (struct dqblk));
if (error)
return (error);
if ((error = dqget(NULLVP, id, ump, type, &ndq)) != 0)
return (error);
dq = ndq;
mutex_enter(&dq->dq_interlock);
/*
* Reset time limit if have a soft limit and were
* previously under it, but are now over it.
*/
if (dq->dq_bsoftlimit && dq->dq_curblocks < dq->dq_bsoftlimit &&
usage.dqb_curblocks >= dq->dq_bsoftlimit)
dq->dq_btime = time_second + ump->um_btime[type];
if (dq->dq_isoftlimit && dq->dq_curinodes < dq->dq_isoftlimit &&
usage.dqb_curinodes >= dq->dq_isoftlimit)
dq->dq_itime = time_second + ump->um_itime[type];
dq->dq_curblocks = usage.dqb_curblocks;
dq->dq_curinodes = usage.dqb_curinodes;
if (dq->dq_curblocks < dq->dq_bsoftlimit)
dq->dq_flags &= ~DQ_BLKS;
if (dq->dq_curinodes < dq->dq_isoftlimit)
dq->dq_flags &= ~DQ_INODS;
dq->dq_flags |= DQ_MOD;
mutex_exit(&dq->dq_interlock);
dqrele(NULLVP, dq);
return (0);
}
/*
* Q_QUOTAON - set up a quota file for a particular filesystem.
*/
int
quotaon(struct thread *td, struct mount *mp, int type, void *fname)
{
struct ufsmount *ump;
struct vnode *vp, **vpp;
struct vnode *mvp;
struct dquot *dq;
int error, flags;
struct nameidata nd;
error = priv_check(td, PRIV_UFS_QUOTAON);
if (error != 0) {
vfs_unbusy(mp);
return (error);
}
if ((mp->mnt_flag & MNT_RDONLY) != 0) {
vfs_unbusy(mp);
return (EROFS);
}
ump = VFSTOUFS(mp);
dq = NODQUOT;
NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, fname, td);
flags = FREAD | FWRITE;
vfs_ref(mp);
vfs_unbusy(mp);
error = vn_open(&nd, &flags, 0, NULL);
if (error != 0) {
vfs_rel(mp);
return (error);
}
NDFREE(&nd, NDF_ONLY_PNBUF);
vp = nd.ni_vp;
error = vfs_busy(mp, MBF_NOWAIT);
vfs_rel(mp);
if (error == 0) {
if (vp->v_type != VREG) {
error = EACCES;
vfs_unbusy(mp);
}
}
if (error != 0) {
VOP_UNLOCK(vp, 0);
(void) vn_close(vp, FREAD|FWRITE, td->td_ucred, td);
return (error);
}
UFS_LOCK(ump);
if ((ump->um_qflags[type] & (QTF_OPENING|QTF_CLOSING)) != 0) {
UFS_UNLOCK(ump);
VOP_UNLOCK(vp, 0);
(void) vn_close(vp, FREAD|FWRITE, td->td_ucred, td);
vfs_unbusy(mp);
return (EALREADY);
}
ump->um_qflags[type] |= QTF_OPENING|QTF_CLOSING;
UFS_UNLOCK(ump);
if ((error = dqopen(vp, ump, type)) != 0) {
VOP_UNLOCK(vp, 0);
UFS_LOCK(ump);
ump->um_qflags[type] &= ~(QTF_OPENING|QTF_CLOSING);
UFS_UNLOCK(ump);
(void) vn_close(vp, FREAD|FWRITE, td->td_ucred, td);
vfs_unbusy(mp);
return (error);
}
VOP_UNLOCK(vp, 0);
MNT_ILOCK(mp);
mp->mnt_flag |= MNT_QUOTA;
MNT_IUNLOCK(mp);
vpp = &ump->um_quotas[type];
if (*vpp != vp)
quotaoff1(td, mp, type);
/*
* When the directory vnode containing the quota file is
* inactivated, due to the shared lookup of the quota file
* vput()ing the dvp, the qsyncvp() call for the containing
* directory would try to acquire the quota lock exclusive.
* At the same time, lookup already locked the quota vnode
* shared. Mark the quota vnode lock as allowing recursion
* and automatically converting shared locks to exclusive.
*
* Also mark quota vnode as system.
*/
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
vp->v_vflag |= VV_SYSTEM;
VN_LOCK_AREC(vp);
VN_LOCK_DSHARE(vp);
VOP_UNLOCK(vp, 0);
*vpp = vp;
/*
* Save the credential of the process that turned on quotas.
* Set up the time limits for this quota.
*/
ump->um_cred[type] = crhold(td->td_ucred);
ump->um_btime[type] = MAX_DQ_TIME;
ump->um_itime[type] = MAX_IQ_TIME;
if (dqget(NULLVP, 0, ump, type, &dq) == 0) {
if (dq->dq_btime > 0)
ump->um_btime[type] = dq->dq_btime;
if (dq->dq_itime > 0)
ump->um_itime[type] = dq->dq_itime;
dqrele(NULLVP, dq);
}
/*
* Allow the getdq from getinoquota below to read the quota
* from file.
*/
UFS_LOCK(ump);
ump->um_qflags[type] &= ~QTF_CLOSING;
UFS_UNLOCK(ump);
/*
* Search vnodes associated with this mount point,
* adding references to quota file being opened.
* NB: only need to add dquot's for inodes being modified.
*/
again:
MNT_VNODE_FOREACH_ALL(vp, mp, mvp) {
if (vget(vp, LK_EXCLUSIVE | LK_INTERLOCK, td)) {
MNT_VNODE_FOREACH_ALL_ABORT(mp, mvp);
goto again;
}
if (vp->v_type == VNON || vp->v_writecount == 0) {
VOP_UNLOCK(vp, 0);
vrele(vp);
continue;
}
error = getinoquota(VTOI(vp));
VOP_UNLOCK(vp, 0);
vrele(vp);
if (error) {
MNT_VNODE_FOREACH_ALL_ABORT(mp, mvp);
break;
}
}
if (error)
quotaoff_inchange(td, mp, type);
UFS_LOCK(ump);
ump->um_qflags[type] &= ~QTF_OPENING;
KASSERT((ump->um_qflags[type] & QTF_CLOSING) == 0,
("quotaon: leaking flags"));
UFS_UNLOCK(ump);
vfs_unbusy(mp);
return (error);
}
/*
* Q_QUOTAON - set up a quota file for a particular file system.
*/
int
quotaon(struct lwp *l, struct mount *mp, int type, void *fname)
{
struct ufsmount *ump = VFSTOUFS(mp);
struct vnode *vp, **vpp, *mvp;
struct dquot *dq;
int error;
struct nameidata nd;
/* XXX XXX XXX */
if (mp->mnt_wapbl != NULL) {
printf("%s: quotas cannot yet be used with -o log\n",
mp->mnt_stat.f_mntonname);
return (EOPNOTSUPP);
}
vpp = &ump->um_quotas[type];
NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, fname);
if ((error = vn_open(&nd, FREAD|FWRITE, 0)) != 0)
return (error);
vp = nd.ni_vp;
VOP_UNLOCK(vp, 0);
if (vp->v_type != VREG) {
(void) vn_close(vp, FREAD|FWRITE, l->l_cred);
return (EACCES);
}
if (*vpp != vp)
quotaoff(l, mp, type);
mutex_enter(&dqlock);
while ((ump->um_qflags[type] & (QTF_CLOSING | QTF_OPENING)) != 0)
cv_wait(&dqcv, &dqlock);
ump->um_qflags[type] |= QTF_OPENING;
mutex_exit(&dqlock);
mp->mnt_flag |= MNT_QUOTA;
vp->v_vflag |= VV_SYSTEM; /* XXXSMP */
*vpp = vp;
/*
* Save the credential of the process that turned on quotas.
* Set up the time limits for this quota.
*/
kauth_cred_hold(l->l_cred);
ump->um_cred[type] = l->l_cred;
ump->um_btime[type] = MAX_DQ_TIME;
ump->um_itime[type] = MAX_IQ_TIME;
if (dqget(NULLVP, 0, ump, type, &dq) == 0) {
if (dq->dq_btime > 0)
ump->um_btime[type] = dq->dq_btime;
if (dq->dq_itime > 0)
ump->um_itime[type] = dq->dq_itime;
dqrele(NULLVP, dq);
}
/* Allocate a marker vnode. */
if ((mvp = vnalloc(mp)) == NULL) {
error = ENOMEM;
goto out;
}
/*
* Search vnodes associated with this mount point,
* adding references to quota file being opened.
* NB: only need to add dquot's for inodes being modified.
*/
mutex_enter(&mntvnode_lock);
again:
for (vp = TAILQ_FIRST(&mp->mnt_vnodelist); vp; vp = vunmark(mvp)) {
vmark(mvp, vp);
mutex_enter(&vp->v_interlock);
if (VTOI(vp) == NULL || vp->v_mount != mp || vismarker(vp) ||
vp->v_type == VNON || vp->v_writecount == 0 ||
(vp->v_iflag & (VI_XLOCK | VI_CLEAN)) != 0) {
mutex_exit(&vp->v_interlock);
continue;
}
mutex_exit(&mntvnode_lock);
if (vget(vp, LK_EXCLUSIVE | LK_INTERLOCK)) {
mutex_enter(&mntvnode_lock);
(void)vunmark(mvp);
goto again;
}
if ((error = getinoquota(VTOI(vp))) != 0) {
vput(vp);
mutex_enter(&mntvnode_lock);
(void)vunmark(mvp);
break;
}
vput(vp);
mutex_enter(&mntvnode_lock);
}
mutex_exit(&mntvnode_lock);
vnfree(mvp);
out:
mutex_enter(&dqlock);
ump->um_qflags[type] &= ~QTF_OPENING;
cv_broadcast(&dqcv);
mutex_exit(&dqlock);
if (error)
quotaoff(l, mp, type);
return (error);
}
static int ext4_ioctl_setproject(struct file *filp, __u32 projid)
{
struct inode *inode = file_inode(filp);
struct super_block *sb = inode->i_sb;
struct ext4_inode_info *ei = EXT4_I(inode);
int err, rc;
handle_t *handle;
kprojid_t kprojid;
struct ext4_iloc iloc;
struct ext4_inode *raw_inode;
struct dquot *transfer_to[MAXQUOTAS] = { };
if (!ext4_has_feature_project(sb)) {
if (projid != EXT4_DEF_PROJID)
return -EOPNOTSUPP;
else
return 0;
}
if (EXT4_INODE_SIZE(sb) <= EXT4_GOOD_OLD_INODE_SIZE)
return -EOPNOTSUPP;
kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
if (projid_eq(kprojid, EXT4_I(inode)->i_projid))
return 0;
err = mnt_want_write_file(filp);
if (err)
return err;
err = -EPERM;
inode_lock(inode);
/* Is it quota file? Do not allow user to mess with it */
if (ext4_is_quota_file(inode))
goto out_unlock;
err = ext4_get_inode_loc(inode, &iloc);
if (err)
goto out_unlock;
raw_inode = ext4_raw_inode(&iloc);
if (!EXT4_FITS_IN_INODE(raw_inode, ei, i_projid)) {
err = ext4_expand_extra_isize(inode,
EXT4_SB(sb)->s_want_extra_isize,
&iloc);
if (err)
goto out_unlock;
} else {
brelse(iloc.bh);
}
dquot_initialize(inode);
handle = ext4_journal_start(inode, EXT4_HT_QUOTA,
EXT4_QUOTA_INIT_BLOCKS(sb) +
EXT4_QUOTA_DEL_BLOCKS(sb) + 3);
if (IS_ERR(handle)) {
err = PTR_ERR(handle);
goto out_unlock;
}
err = ext4_reserve_inode_write(handle, inode, &iloc);
if (err)
goto out_stop;
transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
if (!IS_ERR(transfer_to[PRJQUOTA])) {
/* __dquot_transfer() calls back ext4_get_inode_usage() which
* counts xattr inode references.
*/
down_read(&EXT4_I(inode)->xattr_sem);
err = __dquot_transfer(inode, transfer_to);
up_read(&EXT4_I(inode)->xattr_sem);
dqput(transfer_to[PRJQUOTA]);
if (err)
goto out_dirty;
}
EXT4_I(inode)->i_projid = kprojid;
inode->i_ctime = current_time(inode);
out_dirty:
rc = ext4_mark_iloc_dirty(handle, inode, &iloc);
if (!err)
err = rc;
out_stop:
ext4_journal_stop(handle);
out_unlock:
inode_unlock(inode);
mnt_drop_write_file(filp);
return err;
}
static int ext4_ioctl_setproject(struct file *filp, __u32 projid)
{
struct inode *inode = file_inode(filp);
struct super_block *sb = inode->i_sb;
struct ext4_inode_info *ei = EXT4_I(inode);
int err, rc;
handle_t *handle;
kprojid_t kprojid;
struct ext4_iloc iloc;
struct ext4_inode *raw_inode;
if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
EXT4_FEATURE_RO_COMPAT_PROJECT)) {
if (projid != EXT4_DEF_PROJID)
return -EOPNOTSUPP;
else
return 0;
}
if (EXT4_INODE_SIZE(sb) <= EXT4_GOOD_OLD_INODE_SIZE)
return -EOPNOTSUPP;
kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
if (projid_eq(kprojid, EXT4_I(inode)->i_projid))
return 0;
err = mnt_want_write_file(filp);
if (err)
return err;
err = -EPERM;
inode_lock(inode);
/* Is it quota file? Do not allow user to mess with it */
if (IS_NOQUOTA(inode))
goto out_unlock;
err = ext4_get_inode_loc(inode, &iloc);
if (err)
goto out_unlock;
raw_inode = ext4_raw_inode(&iloc);
if (!EXT4_FITS_IN_INODE(raw_inode, ei, i_projid)) {
err = -EOVERFLOW;
brelse(iloc.bh);
goto out_unlock;
}
brelse(iloc.bh);
dquot_initialize(inode);
handle = ext4_journal_start(inode, EXT4_HT_QUOTA,
EXT4_QUOTA_INIT_BLOCKS(sb) +
EXT4_QUOTA_DEL_BLOCKS(sb) + 3);
if (IS_ERR(handle)) {
err = PTR_ERR(handle);
goto out_unlock;
}
err = ext4_reserve_inode_write(handle, inode, &iloc);
if (err)
goto out_stop;
if (sb_has_quota_limits_enabled(sb, PRJQUOTA)) {
struct dquot *transfer_to[MAXQUOTAS] = { };
transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
if (transfer_to[PRJQUOTA]) {
err = __dquot_transfer(inode, transfer_to);
dqput(transfer_to[PRJQUOTA]);
if (err)
goto out_dirty;
}
}
EXT4_I(inode)->i_projid = kprojid;
inode->i_ctime = ext4_current_time(inode);
out_dirty:
rc = ext4_mark_iloc_dirty(handle, inode, &iloc);
if (!err)
err = rc;
out_stop:
ext4_journal_stop(handle);
out_unlock:
inode_unlock(inode);
mnt_drop_write_file(filp);
return err;
}
