summaryrefslogtreecommitdiffstats
path: root/fs/nfsd/nfs4state.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/nfsd/nfs4state.c')
-rw-r--r--fs/nfsd/nfs4state.c144
1 files changed, 73 insertions, 71 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index b126b86ba644..137f9b119a54 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -430,18 +430,18 @@ put_nfs4_file(struct nfs4_file *fi)
}
}
-static struct file *
+static struct nfsd_file *
__nfs4_get_fd(struct nfs4_file *f, int oflag)
{
if (f->fi_fds[oflag])
- return get_file(f->fi_fds[oflag]->nf_file);
+ return nfsd_file_get(f->fi_fds[oflag]);
return NULL;
}
-static struct file *
+static struct nfsd_file *
find_writeable_file_locked(struct nfs4_file *f)
{
- struct file *ret;
+ struct nfsd_file *ret;
lockdep_assert_held(&f->fi_lock);
@@ -451,10 +451,10 @@ find_writeable_file_locked(struct nfs4_file *f)
return ret;
}
-static struct file *
+static struct nfsd_file *
find_writeable_file(struct nfs4_file *f)
{
- struct file *ret;
+ struct nfsd_file *ret;
spin_lock(&f->fi_lock);
ret = find_writeable_file_locked(f);
@@ -463,9 +463,10 @@ find_writeable_file(struct nfs4_file *f)
return ret;
}
-static struct file *find_readable_file_locked(struct nfs4_file *f)
+static struct nfsd_file *
+find_readable_file_locked(struct nfs4_file *f)
{
- struct file *ret;
+ struct nfsd_file *ret;
lockdep_assert_held(&f->fi_lock);
@@ -475,10 +476,10 @@ static struct file *find_readable_file_locked(struct nfs4_file *f)
return ret;
}
-static struct file *
+static struct nfsd_file *
find_readable_file(struct nfs4_file *f)
{
- struct file *ret;
+ struct nfsd_file *ret;
spin_lock(&f->fi_lock);
ret = find_readable_file_locked(f);
@@ -487,10 +488,10 @@ find_readable_file(struct nfs4_file *f)
return ret;
}
-struct file *
+struct nfsd_file *
find_any_file(struct nfs4_file *f)
{
- struct file *ret;
+ struct nfsd_file *ret;
spin_lock(&f->fi_lock);
ret = __nfs4_get_fd(f, O_RDWR);
@@ -934,25 +935,25 @@ nfs4_inc_and_copy_stateid(stateid_t *dst, struct nfs4_stid *stid)
static void put_deleg_file(struct nfs4_file *fp)
{
- struct file *filp = NULL;
+ struct nfsd_file *nf = NULL;
spin_lock(&fp->fi_lock);
if (--fp->fi_delegees == 0)
- swap(filp, fp->fi_deleg_file);
+ swap(nf, fp->fi_deleg_file);
spin_unlock(&fp->fi_lock);
- if (filp)
- fput(filp);
+ if (nf)
+ nfsd_file_put(nf);
}
static void nfs4_unlock_deleg_lease(struct nfs4_delegation *dp)
{
struct nfs4_file *fp = dp->dl_stid.sc_file;
- struct file *filp = fp->fi_deleg_file;
+ struct nfsd_file *nf = fp->fi_deleg_file;
WARN_ON_ONCE(!fp->fi_delegees);
- vfs_setlease(filp, F_UNLCK, NULL, (void **)&dp);
+ vfs_setlease(nf->nf_file, F_UNLCK, NULL, (void **)&dp);
put_deleg_file(fp);
}
@@ -1290,11 +1291,14 @@ static void nfs4_free_lock_stateid(struct nfs4_stid *stid)
{
struct nfs4_ol_stateid *stp = openlockstateid(stid);
struct nfs4_lockowner *lo = lockowner(stp->st_stateowner);
- struct file *file;
+ struct nfsd_file *nf;
- file = find_any_file(stp->st_stid.sc_file);
- if (file)
- filp_close(file, (fl_owner_t)lo);
+ nf = find_any_file(stp->st_stid.sc_file);
+ if (nf) {
+ get_file(nf->nf_file);
+ filp_close(nf->nf_file, (fl_owner_t)lo);
+ nfsd_file_put(nf);
+ }
nfs4_free_ol_stateid(stid);
}
@@ -2411,7 +2415,7 @@ static int nfs4_show_deleg(struct seq_file *s, struct nfs4_stid *st)
{
struct nfs4_delegation *ds;
struct nfs4_file *nf;
- struct file *file;
+ struct nfsd_file *file;
ds = delegstateid(st);
nf = st->sc_file;
@@ -2434,7 +2438,7 @@ static int nfs4_show_deleg(struct seq_file *s, struct nfs4_stid *st)
static int nfs4_show_layout(struct seq_file *s, struct nfs4_stid *st)
{
struct nfs4_layout_stateid *ls;
- struct file *file;
+ struct nfsd_file *file;
ls = container_of(st, struct nfs4_layout_stateid, ls_stid);
file = ls->ls_file;
@@ -4768,7 +4772,7 @@ static struct file_lock *nfs4_alloc_init_lease(struct nfs4_delegation *dp,
fl->fl_end = OFFSET_MAX;
fl->fl_owner = (fl_owner_t)dp;
fl->fl_pid = current->tgid;
- fl->fl_file = dp->dl_stid.sc_file->fi_deleg_file;
+ fl->fl_file = dp->dl_stid.sc_file->fi_deleg_file->nf_file;
return fl;
}
@@ -4778,7 +4782,7 @@ nfs4_set_delegation(struct nfs4_client *clp, struct svc_fh *fh,
{
int status = 0;
struct nfs4_delegation *dp;
- struct file *filp;
+ struct nfsd_file *nf;
struct file_lock *fl;
/*
@@ -4789,8 +4793,8 @@ nfs4_set_delegation(struct nfs4_client *clp, struct svc_fh *fh,
if (fp->fi_had_conflict)
return ERR_PTR(-EAGAIN);
- filp = find_readable_file(fp);
- if (!filp) {
+ nf = find_readable_file(fp);
+ if (!nf) {
/* We should always have a readable file here */
WARN_ON_ONCE(1);
return ERR_PTR(-EBADF);
@@ -4800,17 +4804,17 @@ nfs4_set_delegation(struct nfs4_client *clp, struct svc_fh *fh,
if (nfs4_delegation_exists(clp, fp))
status = -EAGAIN;
else if (!fp->fi_deleg_file) {
- fp->fi_deleg_file = filp;
+ fp->fi_deleg_file = nf;
/* increment early to prevent fi_deleg_file from being
* cleared */
fp->fi_delegees = 1;
- filp = NULL;
+ nf = NULL;
} else
fp->fi_delegees++;
spin_unlock(&fp->fi_lock);
spin_unlock(&state_lock);
- if (filp)
- fput(filp);
+ if (nf)
+ nfsd_file_put(nf);
if (status)
return ERR_PTR(status);
@@ -4823,7 +4827,7 @@ nfs4_set_delegation(struct nfs4_client *clp, struct svc_fh *fh,
if (!fl)
goto out_clnt_odstate;
- status = vfs_setlease(fp->fi_deleg_file, fl->fl_type, &fl, NULL);
+ status = vfs_setlease(fp->fi_deleg_file->nf_file, fl->fl_type, &fl, NULL);
if (fl)
locks_free_lock(fl);
if (status)
@@ -4843,7 +4847,7 @@ nfs4_set_delegation(struct nfs4_client *clp, struct svc_fh *fh,
return dp;
out_unlock:
- vfs_setlease(fp->fi_deleg_file, F_UNLCK, NULL, (void **)&dp);
+ vfs_setlease(fp->fi_deleg_file->nf_file, F_UNLCK, NULL, (void **)&dp);
out_clnt_odstate:
put_clnt_odstate(dp->dl_clnt_odstate);
nfs4_put_stid(&dp->dl_stid);
@@ -5514,7 +5518,7 @@ nfsd4_lookup_stateid(struct nfsd4_compound_state *cstate,
return nfs_ok;
}
-static struct file *
+static struct nfsd_file *
nfs4_find_file(struct nfs4_stid *s, int flags)
{
if (!s)
@@ -5524,7 +5528,7 @@ nfs4_find_file(struct nfs4_stid *s, int flags)
case NFS4_DELEG_STID:
if (WARN_ON_ONCE(!s->sc_file->fi_deleg_file))
return NULL;
- return get_file(s->sc_file->fi_deleg_file);
+ return nfsd_file_get(s->sc_file->fi_deleg_file);
case NFS4_OPEN_STID:
case NFS4_LOCK_STID:
if (flags & RD_STATE)
@@ -5553,29 +5557,27 @@ nfs4_check_file(struct svc_rqst *rqstp, struct svc_fh *fhp, struct nfs4_stid *s,
struct file **filpp, bool *tmp_file, int flags)
{
int acc = (flags & RD_STATE) ? NFSD_MAY_READ : NFSD_MAY_WRITE;
- struct file *file;
+ struct nfsd_file *nf;
__be32 status;
- file = nfs4_find_file(s, flags);
- if (file) {
+ nf = nfs4_find_file(s, flags);
+ if (nf) {
status = nfsd_permission(rqstp, fhp->fh_export, fhp->fh_dentry,
acc | NFSD_MAY_OWNER_OVERRIDE);
- if (status) {
- fput(file);
- return status;
- }
-
- *filpp = file;
+ if (status)
+ goto out;
} else {
- status = nfsd_open(rqstp, fhp, S_IFREG, acc, filpp);
+ status = nfsd_file_acquire(rqstp, fhp, acc, &nf);
if (status)
return status;
if (tmp_file)
*tmp_file = true;
}
-
- return 0;
+ *filpp = get_file(nf->nf_file);
+out:
+ nfsd_file_put(nf);
+ return status;
}
/*
@@ -6393,7 +6395,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfs4_ol_stateid *lock_stp = NULL;
struct nfs4_ol_stateid *open_stp = NULL;
struct nfs4_file *fp;
- struct file *filp = NULL;
+ struct nfsd_file *nf = NULL;
struct nfsd4_blocked_lock *nbl = NULL;
struct file_lock *file_lock = NULL;
struct file_lock *conflock = NULL;
@@ -6475,8 +6477,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
/* Fallthrough */
case NFS4_READ_LT:
spin_lock(&fp->fi_lock);
- filp = find_readable_file_locked(fp);
- if (filp)
+ nf = find_readable_file_locked(fp);
+ if (nf)
get_lock_access(lock_stp, NFS4_SHARE_ACCESS_READ);
spin_unlock(&fp->fi_lock);
fl_type = F_RDLCK;
@@ -6487,8 +6489,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
/* Fallthrough */
case NFS4_WRITE_LT:
spin_lock(&fp->fi_lock);
- filp = find_writeable_file_locked(fp);
- if (filp)
+ nf = find_writeable_file_locked(fp);
+ if (nf)
get_lock_access(lock_stp, NFS4_SHARE_ACCESS_WRITE);
spin_unlock(&fp->fi_lock);
fl_type = F_WRLCK;
@@ -6498,7 +6500,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
goto out;
}
- if (!filp) {
+ if (!nf) {
status = nfserr_openmode;
goto out;
}
@@ -6514,7 +6516,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
file_lock->fl_type = fl_type;
file_lock->fl_owner = (fl_owner_t)lockowner(nfs4_get_stateowner(&lock_sop->lo_owner));
file_lock->fl_pid = current->tgid;
- file_lock->fl_file = filp;
+ file_lock->fl_file = nf->nf_file;
file_lock->fl_flags = fl_flags;
file_lock->fl_lmops = &nfsd_posix_mng_ops;
file_lock->fl_start = lock->lk_offset;
@@ -6536,7 +6538,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
spin_unlock(&nn->blocked_locks_lock);
}
- err = vfs_lock_file(filp, F_SETLK, file_lock, conflock);
+ err = vfs_lock_file(nf->nf_file, F_SETLK, file_lock, conflock);
switch (err) {
case 0: /* success! */
nfs4_inc_and_copy_stateid(&lock->lk_resp_stateid, &lock_stp->st_stid);
@@ -6571,8 +6573,8 @@ out:
}
free_blocked_lock(nbl);
}
- if (filp)
- fput(filp);
+ if (nf)
+ nfsd_file_put(nf);
if (lock_stp) {
/* Bump seqid manually if the 4.0 replay owner is openowner */
if (cstate->replay_owner &&
@@ -6699,7 +6701,7 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
{
struct nfsd4_locku *locku = &u->locku;
struct nfs4_ol_stateid *stp;
- struct file *filp = NULL;
+ struct nfsd_file *nf = NULL;
struct file_lock *file_lock = NULL;
__be32 status;
int err;
@@ -6717,8 +6719,8 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
&stp, nn);
if (status)
goto out;
- filp = find_any_file(stp->st_stid.sc_file);
- if (!filp) {
+ nf = find_any_file(stp->st_stid.sc_file);
+ if (!nf) {
status = nfserr_lock_range;
goto put_stateid;
}
@@ -6726,13 +6728,13 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
if (!file_lock) {
dprintk("NFSD: %s: unable to allocate lock!\n", __func__);
status = nfserr_jukebox;
- goto fput;
+ goto put_file;
}
file_lock->fl_type = F_UNLCK;
file_lock->fl_owner = (fl_owner_t)lockowner(nfs4_get_stateowner(stp->st_stateowner));
file_lock->fl_pid = current->tgid;
- file_lock->fl_file = filp;
+ file_lock->fl_file = nf->nf_file;
file_lock->fl_flags = FL_POSIX;
file_lock->fl_lmops = &nfsd_posix_mng_ops;
file_lock->fl_start = locku->lu_offset;
@@ -6741,14 +6743,14 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
locku->lu_length);
nfs4_transform_lock_offset(file_lock);
- err = vfs_lock_file(filp, F_SETLK, file_lock, NULL);
+ err = vfs_lock_file(nf->nf_file, F_SETLK, file_lock, NULL);
if (err) {
dprintk("NFSD: nfs4_locku: vfs_lock_file failed!\n");
goto out_nfserr;
}
nfs4_inc_and_copy_stateid(&locku->lu_stateid, &stp->st_stid);
-fput:
- fput(filp);
+put_file:
+ nfsd_file_put(nf);
put_stateid:
mutex_unlock(&stp->st_mutex);
nfs4_put_stid(&stp->st_stid);
@@ -6760,7 +6762,7 @@ out:
out_nfserr:
status = nfserrno(err);
- goto fput;
+ goto put_file;
}
/*
@@ -6773,17 +6775,17 @@ check_for_locks(struct nfs4_file *fp, struct nfs4_lockowner *lowner)
{
struct file_lock *fl;
int status = false;
- struct file *filp = find_any_file(fp);
+ struct nfsd_file *nf = find_any_file(fp);
struct inode *inode;
struct file_lock_context *flctx;
- if (!filp) {
+ if (!nf) {
/* Any valid lock stateid should have some sort of access */
WARN_ON_ONCE(1);
return status;
}
- inode = locks_inode(filp);
+ inode = locks_inode(nf->nf_file);
flctx = inode->i_flctx;
if (flctx && !list_empty_careful(&flctx->flc_posix)) {
@@ -6796,7 +6798,7 @@ check_for_locks(struct nfs4_file *fp, struct nfs4_lockowner *lowner)
}
spin_unlock(&flctx->flc_lock);
}
- fput(filp);
+ nfsd_file_put(nf);
return status;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-15 17:44:39 +0100