diff options
author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-10-19 00:03:27 +0200 |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-10-19 23:19:25 +0200 |
commit | a49c3c7736a2e77931dabc5bc4a83fb4b2da013e (patch) | |
tree | 1921900be210540ee53a4011c9e8f781deb0367e /fs | |
parent | NFS: Fix a race in sillyrename (diff) | |
download | linux-a49c3c7736a2e77931dabc5bc4a83fb4b2da013e.tar.xz linux-a49c3c7736a2e77931dabc5bc4a83fb4b2da013e.zip |
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>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/nfs/file.c | 2 | ||||
-rw-r--r-- | fs/nfs/inode.c | 22 | ||||
-rw-r--r-- | fs/nfs/nfs4_fs.h | 3 | ||||
-rw-r--r-- | fs/nfs/nfs4proc.c | 13 | ||||
-rw-r--r-- | fs/nfs/nfs4state.c | 14 |
5 files changed, 41 insertions, 13 deletions
diff --git a/fs/nfs/file.c b/fs/nfs/file.c index d29f90d00aa2..b3bb89f7d5d2 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -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); } diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 173e294dffc5..db5d96dc6107 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -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); } } diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index d2802b1ca3b9..a4e3b961b63b 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -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); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 2cb3b8b71ee7..f03d9d5f5ba4 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -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; } diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index bfb36261cecb..23a9a36556bf 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -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); } /* |