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NFSv4: Ensure that we track the NFSv4 lock state in read/write requests.

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This patch fixes bugzilla entry 14501:
  https://bugzilla.kernel.org/show_bug.cgi?id=14501

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
2010-06-25 16:35:53 -04:00
parent 1f0e890dba
commit f11ac8db5d
9 changed files with 118 additions and 19 deletions
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13
include/linux/nfs_fs.h
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@@ -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);