From f11ac8db5d07b6e99d41ff4aa39d878ee5cef1c5 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 25 Jun 2010 16:35:53 -0400 Subject: NFSv4: Ensure that we track the NFSv4 lock state in read/write requests. This patch fixes bugzilla entry 14501: https://bugzilla.kernel.org/show_bug.cgi?id=14501 Signed-off-by: Trond Myklebust --- include/linux/nfs_fs.h | 13 +++++++++++-- include/linux/nfs_page.h | 1 + include/linux/nfs_xdr.h | 2 ++ 3 files changed, 14 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 77c2ae53431c..a9d802615082 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -72,13 +72,20 @@ struct nfs_access_entry { int mask; }; +struct nfs_lock_context { + atomic_t count; + struct list_head list; + struct nfs_open_context *open_context; + fl_owner_t lockowner; + pid_t pid; +}; + struct nfs4_state; struct nfs_open_context { - atomic_t count; + struct nfs_lock_context lock_context; struct path path; struct rpc_cred *cred; struct nfs4_state *state; - fl_owner_t lockowner; fmode_t mode; unsigned long flags; @@ -353,6 +360,8 @@ extern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr); extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx); extern void put_nfs_open_context(struct nfs_open_context *ctx); extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, fmode_t mode); +extern struct nfs_lock_context *nfs_get_lock_context(struct nfs_open_context *ctx); +extern void nfs_put_lock_context(struct nfs_lock_context *l_ctx); extern u64 nfs_compat_user_ino64(u64 fileid); extern void nfs_fattr_init(struct nfs_fattr *fattr); diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index 3c60685d972b..f8b60e7f4c44 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -39,6 +39,7 @@ struct nfs_page { struct list_head wb_list; /* Defines state of page: */ struct page *wb_page; /* page to read in/write out */ struct nfs_open_context *wb_context; /* File state context info */ + struct nfs_lock_context *wb_lock_context; /* lock context info */ atomic_t wb_complete; /* i/os we're waiting for */ pgoff_t wb_index; /* Offset >> PAGE_CACHE_SHIFT */ unsigned int wb_offset, /* Offset & ~PAGE_CACHE_MASK */ diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index a319cb926abf..87202c7026e3 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -334,6 +334,7 @@ struct nfs4_delegreturnres { struct nfs_readargs { struct nfs_fh * fh; struct nfs_open_context *context; + struct nfs_lock_context *lock_context; __u64 offset; __u32 count; unsigned int pgbase; @@ -354,6 +355,7 @@ struct nfs_readres { struct nfs_writeargs { struct nfs_fh * fh; struct nfs_open_context *context; + struct nfs_lock_context *lock_context; __u64 offset; __u32 count; enum nfs3_stable_how stable; -- cgit v1.2.3