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提交 ca364317 编写于 作者: J J.Bruce Fields 提交者： Linus Torvalds
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[PATCH] knfsd: nfsd4: pass saved and current fh together into nfsd4 operations 

Pass the saved and current filehandles together into all the nfsd4 compound
operations.

I want a unified interface to these operations so we can just call them by
pointer and throw out the huge switch statement.

Also I'll eventually want a structure like this--that holds the state used
during compound processing--for deferral.
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 01f3bd1f
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Showing with 259 addition and 179 deletion
fs/nfsd/nfs4proc.c
浏览文件 @ ca364317
此差异已折叠。
fs/nfsd/nfs4state.c
浏览文件 @ ca364317
......@@ -2241,24 +2241,26 @@ nfs4_preprocess_seqid_op(struct svc_fh *current_fh, u32 seqid, stateid_t *statei
}
__be32
nfsd4_open_confirm(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open_confirm *oc, struct nfs4_stateowner **replay_owner)
nfsd4_open_confirm(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_open_confirm *oc,
struct nfs4_stateowner **replay_owner)
{
__be32 status;
struct nfs4_stateowner *sop;
struct nfs4_stateid *stp;
dprintk("NFSD: nfsd4_open_confirm on file %.*s\n",
(int)current_fh->fh_dentry->d_name.len,
current_fh->fh_dentry->d_name.name);
(int)cstate->current_fh.fh_dentry->d_name.len,
cstate->current_fh.fh_dentry->d_name.name);
status = fh_verify(rqstp, current_fh, S_IFREG, 0);
status = fh_verify(rqstp, &cstate->current_fh, S_IFREG, 0);
if (status)
return status;
nfs4_lock_state();
if ((status = nfs4_preprocess_seqid_op(current_fh, oc->oc_seqid,
&oc->oc_req_stateid,
if ((status = nfs4_preprocess_seqid_op(&cstate->current_fh,
oc->oc_seqid, &oc->oc_req_stateid,
CHECK_FH | CONFIRM | OPEN_STATE,
&oc->oc_stateowner, &stp, NULL)))
goto out;
......@@ -2310,22 +2312,26 @@ reset_union_bmap_deny(unsigned long deny, unsigned long *bmap)
}
__be32
nfsd4_open_downgrade(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open_downgrade *od, struct nfs4_stateowner **replay_owner)
nfsd4_open_downgrade(struct svc_rqst *rqstp,
struct nfsd4_compound_state *cstate,
struct nfsd4_open_downgrade *od,
struct nfs4_stateowner **replay_owner)
{
__be32 status;
struct nfs4_stateid *stp;
unsigned int share_access;
dprintk("NFSD: nfsd4_open_downgrade on file %.*s\n",
(int)current_fh->fh_dentry->d_name.len,
current_fh->fh_dentry->d_name.name);
(int)cstate->current_fh.fh_dentry->d_name.len,
cstate->current_fh.fh_dentry->d_name.name);
if (!access_valid(od->od_share_access)
|| !deny_valid(od->od_share_deny))
return nfserr_inval;
nfs4_lock_state();
if ((status = nfs4_preprocess_seqid_op(current_fh, od->od_seqid,
if ((status = nfs4_preprocess_seqid_op(&cstate->current_fh,
od->od_seqid,
&od->od_stateid,
CHECK_FH | OPEN_STATE,
&od->od_stateowner, &stp, NULL)))
......@@ -2365,18 +2371,20 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct n
* nfs4_unlock_state() called after encode
*/
__be32
nfsd4_close(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_close *close, struct nfs4_stateowner **replay_owner)
nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_close *close, struct nfs4_stateowner **replay_owner)
{
__be32 status;
struct nfs4_stateid *stp;
dprintk("NFSD: nfsd4_close on file %.*s\n",
(int)current_fh->fh_dentry->d_name.len,
current_fh->fh_dentry->d_name.name);
(int)cstate->current_fh.fh_dentry->d_name.len,
cstate->current_fh.fh_dentry->d_name.name);
nfs4_lock_state();
/* check close_lru for replay */
if ((status = nfs4_preprocess_seqid_op(current_fh, close->cl_seqid,
if ((status = nfs4_preprocess_seqid_op(&cstate->current_fh,
close->cl_seqid,
&close->cl_stateid,
CHECK_FH | OPEN_STATE | CLOSE_STATE,
&close->cl_stateowner, &stp, NULL)))
......@@ -2404,15 +2412,17 @@ nfsd4_close(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_clos
}
__be32
nfsd4_delegreturn(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_delegreturn *dr)
nfsd4_delegreturn(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_delegreturn *dr)
{
__be32 status;
if ((status = fh_verify(rqstp, current_fh, S_IFREG, 0)))
if ((status = fh_verify(rqstp, &cstate->current_fh, S_IFREG, 0)))
goto out;
nfs4_lock_state();
status = nfs4_preprocess_stateid_op(current_fh, &dr->dr_stateid, DELEG_RET, NULL);
status = nfs4_preprocess_stateid_op(&cstate->current_fh,
&dr->dr_stateid, DELEG_RET, NULL);
nfs4_unlock_state();
out:
return status;
......@@ -2635,7 +2645,8 @@ check_lock_length(u64 offset, u64 length)
* LOCK operation
*/
__be32
nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock *lock, struct nfs4_stateowner **replay_owner)
nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_lock *lock, struct nfs4_stateowner **replay_owner)
{
struct nfs4_stateowner *open_sop = NULL;
struct nfs4_stateowner *lock_sop = NULL;
......@@ -2654,7 +2665,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock
if (check_lock_length(lock->lk_offset, lock->lk_length))
return nfserr_inval;
if ((status = fh_verify(rqstp, current_fh, S_IFREG, MAY_LOCK))) {
if ((status = fh_verify(rqstp, &cstate->current_fh,
S_IFREG, MAY_LOCK))) {
dprintk("NFSD: nfsd4_lock: permission denied!\n");
return status;
}
......@@ -2675,7 +2687,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock
goto out;
/* validate and update open stateid and open seqid */
status = nfs4_preprocess_seqid_op(current_fh,
status = nfs4_preprocess_seqid_op(&cstate->current_fh,
lock->lk_new_open_seqid,
&lock->lk_new_open_stateid,
CHECK_FH | OPEN_STATE,
......@@ -2702,7 +2714,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock
goto out;
} else {
/* lock (lock owner + lock stateid) already exists */
status = nfs4_preprocess_seqid_op(current_fh,
status = nfs4_preprocess_seqid_op(&cstate->current_fh,
lock->lk_old_lock_seqid,
&lock->lk_old_lock_stateid,
CHECK_FH | LOCK_STATE,
......@@ -2794,7 +2806,8 @@ nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock
* LOCKT operation
*/
__be32
nfsd4_lockt(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lockt *lockt)
nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_lockt *lockt)
{
struct inode *inode;
struct file file;
......@@ -2815,14 +2828,14 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock
if (STALE_CLIENTID(&lockt->lt_clientid))
goto out;
if ((status = fh_verify(rqstp, current_fh, S_IFREG, 0))) {
if ((status = fh_verify(rqstp, &cstate->current_fh, S_IFREG, 0))) {
dprintk("NFSD: nfsd4_lockt: fh_verify() failed!\n");
if (status == nfserr_symlink)
status = nfserr_inval;
goto out;
}
inode = current_fh->fh_dentry->d_inode;
inode = cstate->current_fh.fh_dentry->d_inode;
locks_init_lock(&file_lock);
switch (lockt->lt_type) {
case NFS4_READ_LT:
......@@ -2861,7 +2874,7 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock
* only the dentry:inode set.
*/
memset(&file, 0, sizeof (struct file));
file.f_path.dentry = current_fh->fh_dentry;
file.f_path.dentry = cstate->current_fh.fh_dentry;
status = nfs_ok;
if (posix_test_lock(&file, &file_lock, &conflock)) {
......@@ -2874,7 +2887,8 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock
}
__be32
nfsd4_locku(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_locku *locku, struct nfs4_stateowner **replay_owner)
nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_locku *locku, struct nfs4_stateowner **replay_owner)
{
struct nfs4_stateid *stp;
struct file *filp = NULL;
......@@ -2891,7 +2905,7 @@ nfsd4_locku(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock
nfs4_lock_state();
if ((status = nfs4_preprocess_seqid_op(current_fh,
if ((status = nfs4_preprocess_seqid_op(&cstate->current_fh,
locku->lu_seqid,
&locku->lu_stateid,
CHECK_FH | LOCK_STATE,
......
include/linux/nfsd/xdr4.h
浏览文件 @ ca364317
......@@ -44,6 +44,11 @@
#define NFSD4_MAX_TAGLEN 128
#define XDR_LEN(n) (((n) + 3) & ~3)
struct nfsd4_compound_state {
struct svc_fh current_fh;
struct svc_fh save_fh;
};
struct nfsd4_change_info {
u32 atomic;
u32 before_ctime_sec;
......@@ -437,20 +442,23 @@ extern __be32 nfsd4_process_open1(struct nfsd4_open *open);
extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
struct svc_fh *current_fh, struct nfsd4_open *open);
extern __be32 nfsd4_open_confirm(struct svc_rqst *rqstp,
struct svc_fh *current_fh, struct nfsd4_open_confirm *oc,
struct nfsd4_compound_state *, struct nfsd4_open_confirm *oc,
struct nfs4_stateowner **);
extern __be32 nfsd4_close(struct svc_rqst *rqstp, struct svc_fh *current_fh,
extern __be32 nfsd4_close(struct svc_rqst *rqstp,
struct nfsd4_compound_state *,
struct nfsd4_close *close,
struct nfs4_stateowner **replay_owner);
extern __be32 nfsd4_open_downgrade(struct svc_rqst *rqstp,
struct svc_fh *current_fh, struct nfsd4_open_downgrade *od,
struct nfsd4_compound_state *, struct nfsd4_open_downgrade *od,
struct nfs4_stateowner **replay_owner);
extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh,
extern __be32 nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *,
struct nfsd4_lock *lock,
struct nfs4_stateowner **replay_owner);
extern __be32 nfsd4_lockt(struct svc_rqst *rqstp, struct svc_fh *current_fh,
extern __be32 nfsd4_lockt(struct svc_rqst *rqstp,
struct nfsd4_compound_state *,
struct nfsd4_lockt *lockt);
extern __be32 nfsd4_locku(struct svc_rqst *rqstp, struct svc_fh *current_fh,
extern __be32 nfsd4_locku(struct svc_rqst *rqstp,
struct nfsd4_compound_state *,
struct nfsd4_locku *locku,
struct nfs4_stateowner **replay_owner);
extern __be32
......@@ -458,7 +466,7 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp,
struct nfsd4_release_lockowner *rlockowner);
extern void nfsd4_release_compoundargs(struct nfsd4_compoundargs *);
extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
struct svc_fh *current_fh, struct nfsd4_delegreturn *dr);
struct nfsd4_compound_state *, struct nfsd4_delegreturn *dr);
#endif
/*
......
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