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| author | Peng Tao <bergwolf@gmail.com> | 2011-07-30 20:52:31 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-07-31 12:18:14 -0400 |
| commit | acff5880539fe33897d016c0f3dcf062e67c61b6 (patch) | |
| tree | c5769a826e04e1c3b84c19d2b0f9932a2e69aa8f /fs/nfs | |
| parent | 374e4e3ec347d4f70e1417ce3e1c454f133dab72 (diff) | |
| download | linux-acff5880539fe33897d016c0f3dcf062e67c61b6.tar.gz linux-acff5880539fe33897d016c0f3dcf062e67c61b6.tar.bz2 linux-acff5880539fe33897d016c0f3dcf062e67c61b6.zip | |
pnfs: save layoutcommit lwb at layout header
No need to save it for every lseg.
[Needed in v3.0]
CC: Stable Tree <stable@kernel.org>
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>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/nfs4filelayout.c | 2 | ||||
| -rw-r--r-- | fs/nfs/pnfs.c | 10 | ||||
| -rw-r--r-- | fs/nfs/pnfs.h | 2 |
3 files changed, 8 insertions, 6 deletions
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index be93a622872c..e8915d4840ad 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -170,7 +170,7 @@ filelayout_set_layoutcommit(struct nfs_write_data *wdata) 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 38e5508555c6..7a948ab4e73d 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1379,9 +1379,11 @@ pnfs_set_layoutcommit(struct nfs_write_data *wdata) 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 */ @@ -1433,9 +1435,9 @@ pnfs_layoutcommit_inode(struct inode *inode, bool sync) */ 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 078670dfbe04..1eb2c043d23a 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -45,7 +45,6 @@ struct pnfs_layout_segment { 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 { @@ -125,6 +124,7 @@ struct pnfs_layout_hdr { 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; }; |