NFSv4: Ensure that we wait for the CLOSE request to complete

Otherwise, we do end up breaking close-to-open semantics. We also end up
breaking some of the silly-rename tests in Connectathon on some setups.

Please refer to the bug-report at
	http://bugzilla.linux-nfs.org/show_bug.cgi?id=150

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2007-10-18 18:03:27 -04:00
parent 565277f63c
commit a49c3c7736
5 changed files with 41 additions and 13 deletions

View File

@ -131,7 +131,7 @@ nfs_file_release(struct inode *inode, struct file *filp)
{
/* Ensure that dirty pages are flushed out with the right creds */
if (filp->f_mode & FMODE_WRITE)
filemap_fdatawrite(filp->f_mapping);
nfs_wb_all(filp->f_path.dentry->d_inode);
nfs_inc_stats(inode, NFSIOS_VFSRELEASE);
return NFS_PROTO(inode)->file_release(inode, filp);
}

View File

@ -514,7 +514,7 @@ struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx)
return ctx;
}
void put_nfs_open_context(struct nfs_open_context *ctx)
static void __put_nfs_open_context(struct nfs_open_context *ctx, int wait)
{
struct inode *inode = ctx->path.dentry->d_inode;
@ -522,8 +522,12 @@ void put_nfs_open_context(struct nfs_open_context *ctx)
return;
list_del(&ctx->list);
spin_unlock(&inode->i_lock);
if (ctx->state != NULL)
nfs4_close_state(&ctx->path, ctx->state, ctx->mode);
if (ctx->state != NULL) {
if (wait)
nfs4_close_sync(&ctx->path, ctx->state, ctx->mode);
else
nfs4_close_state(&ctx->path, ctx->state, ctx->mode);
}
if (ctx->cred != NULL)
put_rpccred(ctx->cred);
dput(ctx->path.dentry);
@ -531,6 +535,16 @@ void put_nfs_open_context(struct nfs_open_context *ctx)
kfree(ctx);
}
void put_nfs_open_context(struct nfs_open_context *ctx)
{
__put_nfs_open_context(ctx, 0);
}
static void put_nfs_open_context_sync(struct nfs_open_context *ctx)
{
__put_nfs_open_context(ctx, 1);
}
/*
* Ensure that mmap has a recent RPC credential for use when writing out
* shared pages
@ -577,7 +591,7 @@ static void nfs_file_clear_open_context(struct file *filp)
spin_lock(&inode->i_lock);
list_move_tail(&ctx->list, &NFS_I(inode)->open_files);
spin_unlock(&inode->i_lock);
put_nfs_open_context(ctx);
put_nfs_open_context_sync(ctx);
}
}

View File

@ -178,7 +178,7 @@ extern int nfs4_proc_setclientid(struct nfs_client *, u32, unsigned short, struc
extern int nfs4_proc_setclientid_confirm(struct nfs_client *, struct rpc_cred *);
extern int nfs4_proc_async_renew(struct nfs_client *, struct rpc_cred *);
extern int nfs4_proc_renew(struct nfs_client *, struct rpc_cred *);
extern int nfs4_do_close(struct path *path, struct nfs4_state *state);
extern int nfs4_do_close(struct path *path, struct nfs4_state *state, int wait);
extern struct dentry *nfs4_atomic_open(struct inode *, struct dentry *, struct nameidata *);
extern int nfs4_open_revalidate(struct inode *, struct dentry *, int, struct nameidata *);
extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle);
@ -209,6 +209,7 @@ extern void nfs4_drop_state_owner(struct nfs4_state_owner *);
extern struct nfs4_state * nfs4_get_open_state(struct inode *, struct nfs4_state_owner *);
extern void nfs4_put_open_state(struct nfs4_state *);
extern void nfs4_close_state(struct path *, struct nfs4_state *, mode_t);
extern void nfs4_close_sync(struct path *, struct nfs4_state *, mode_t);
extern void nfs4_state_set_mode_locked(struct nfs4_state *, mode_t);
extern void nfs4_schedule_state_recovery(struct nfs_client *);
extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp);

View File

@ -1305,7 +1305,7 @@ static const struct rpc_call_ops nfs4_close_ops = {
*
* NOTE: Caller must be holding the sp->so_owner semaphore!
*/
int nfs4_do_close(struct path *path, struct nfs4_state *state)
int nfs4_do_close(struct path *path, struct nfs4_state *state, int wait)
{
struct nfs_server *server = NFS_SERVER(state->inode);
struct nfs4_closedata *calldata;
@ -1333,8 +1333,11 @@ int nfs4_do_close(struct path *path, struct nfs4_state *state)
task = rpc_run_task(server->client, RPC_TASK_ASYNC, &nfs4_close_ops, calldata);
if (IS_ERR(task))
return PTR_ERR(task);
status = 0;
if (wait)
status = rpc_wait_for_completion_task(task);
rpc_put_task(task);
return 0;
return status;
out_free_calldata:
kfree(calldata);
out:
@ -1365,7 +1368,7 @@ static int nfs4_intent_set_file(struct nameidata *nd, struct path *path, struct
}
ret = PTR_ERR(filp);
out_close:
nfs4_close_state(path, state, nd->intent.open.flags);
nfs4_close_sync(path, state, nd->intent.open.flags);
return ret;
}
@ -1450,7 +1453,7 @@ nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags, st
nfs4_intent_set_file(nd, &path, state);
return 1;
}
nfs4_close_state(&path, state, openflags);
nfs4_close_sync(&path, state, openflags);
out_drop:
d_drop(dentry);
return 0;
@ -1904,7 +1907,7 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
if (status == 0 && (nd->flags & LOOKUP_OPEN) != 0)
status = nfs4_intent_set_file(nd, &path, state);
else
nfs4_close_state(&path, state, flags);
nfs4_close_sync(&path, state, flags);
out:
return status;
}

View File

@ -425,7 +425,7 @@ void nfs4_put_open_state(struct nfs4_state *state)
/*
* Close the current file.
*/
void nfs4_close_state(struct path *path, struct nfs4_state *state, mode_t mode)
static void __nfs4_close(struct path *path, struct nfs4_state *state, mode_t mode, int wait)
{
struct nfs4_state_owner *owner = state->owner;
int call_close = 0;
@ -466,7 +466,17 @@ void nfs4_close_state(struct path *path, struct nfs4_state *state, mode_t mode)
nfs4_put_open_state(state);
nfs4_put_state_owner(owner);
} else
nfs4_do_close(path, state);
nfs4_do_close(path, state, wait);
}
void nfs4_close_state(struct path *path, struct nfs4_state *state, mode_t mode)
{
__nfs4_close(path, state, mode, 0);
}
void nfs4_close_sync(struct path *path, struct nfs4_state *state, mode_t mode)
{
__nfs4_close(path, state, mode, 1);
}
/*