summaryrefslogtreecommitdiff
path: root/fs/nfs/pnfs.h
diff options
context:
space:
mode:
authorTrond Myklebust <Trond.Myklebust@netapp.com>2013-03-20 13:23:33 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2013-03-21 10:31:21 -0400
commit240286725d854331422cb15957f8d9bf2741d4e3 (patch)
tree2b92c0f41ef7e303dd26f976a8afcdae467b08f0 /fs/nfs/pnfs.h
parent24956804349ca0eadcdde032d65e8c00b4214096 (diff)
NFSv4.1: Add a helper pnfs_commit_and_return_layout
In order to be able to safely return the layout in nfs4_proc_setattr, we need to block new uses of the layout, wait for all outstanding users of the layout to complete, commit the layout and then return it. This patch adds a helper in order to do all this safely. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Boaz Harrosh <bharrosh@panasas.com>
Diffstat (limited to 'fs/nfs/pnfs.h')
-rw-r--r--fs/nfs/pnfs.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 94ba80417748..f5f8a470a647 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -219,6 +219,7 @@ void pnfs_set_layoutcommit(struct nfs_write_data *wdata);
void pnfs_cleanup_layoutcommit(struct nfs4_layoutcommit_data *data);
int pnfs_layoutcommit_inode(struct inode *inode, bool sync);
int _pnfs_return_layout(struct inode *);
+int pnfs_commit_and_return_layout(struct inode *);
void pnfs_ld_write_done(struct nfs_write_data *);
void pnfs_ld_read_done(struct nfs_read_data *);
struct pnfs_layout_segment *pnfs_update_layout(struct inode *ino,
@@ -407,6 +408,11 @@ static inline int pnfs_return_layout(struct inode *ino)
return 0;
}
+static inline int pnfs_commit_and_return_layout(struct inode *inode)
+{
+ return 0;
+}
+
static inline bool
pnfs_ld_layoutret_on_setattr(struct inode *inode)
{