pnfs: save layoutcommit lwb at layout header
commit acff5880539fe33897d016c0f3dcf062e67c61b6 upstream.
No need to save it for every lseg.
[Needed in v3.0]
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
index f9d03ab..614c4d2 100644
--- a/fs/nfs/nfs4filelayout.c
+++ b/fs/nfs/nfs4filelayout.c
@@ -170,7 +170,7 @@
pnfs_set_layoutcommit(wdata);
dprintk("%s ionde %lu pls_end_pos %lu\n", __func__, wdata->inode->i_ino,
- (unsigned long) wdata->lseg->pls_end_pos);
+ (unsigned long) NFS_I(wdata->inode)->layout->plh_lwb);
}
/*
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 29c0ca7..fb1bcf1 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1224,9 +1224,11 @@
dprintk("%s: Set layoutcommit for inode %lu ",
__func__, wdata->inode->i_ino);
}
- if (end_pos > wdata->lseg->pls_end_pos)
- wdata->lseg->pls_end_pos = end_pos;
+ if (end_pos > nfsi->layout->plh_lwb)
+ nfsi->layout->plh_lwb = end_pos;
spin_unlock(&nfsi->vfs_inode.i_lock);
+ dprintk("%s: lseg %p end_pos %llu\n",
+ __func__, wdata->lseg, nfsi->layout->plh_lwb);
/* if pnfs_layoutcommit_inode() runs between inode locks, the next one
* will be a noop because NFS_INO_LAYOUTCOMMIT will not be set */
@@ -1278,9 +1280,9 @@
*/
lseg = pnfs_list_write_lseg(inode);
- end_pos = lseg->pls_end_pos;
+ end_pos = nfsi->layout->plh_lwb;
cred = lseg->pls_lc_cred;
- lseg->pls_end_pos = 0;
+ nfsi->layout->plh_lwb = 0;
lseg->pls_lc_cred = NULL;
memcpy(&data->args.stateid.data, nfsi->layout->plh_stateid.data,
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 96bf4e6..77e1b24 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -45,7 +45,6 @@
unsigned long pls_flags;
struct pnfs_layout_hdr *pls_layout;
struct rpc_cred *pls_lc_cred; /* LAYOUTCOMMIT credential */
- loff_t pls_end_pos; /* LAYOUTCOMMIT write end */
};
enum pnfs_try_status {
@@ -124,6 +123,7 @@
unsigned long plh_block_lgets; /* block LAYOUTGET if >0 */
u32 plh_barrier; /* ignore lower seqids */
unsigned long plh_flags;
+ loff_t plh_lwb; /* last write byte for layoutcommit */
struct inode *plh_inode;
};