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nfs41: add a helper function to set layoutcommit after commit

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Track lwb in nfs_commit_data so that we can use it to setup
layoutcommit in commit_done callback.

Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Peng Tao
2014-08-07 10:15:02 +08:00
committed by Trond Myklebust
parent 61beef75cc
commit 378520b837
4 changed files with 46 additions and 0 deletions
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29
fs/nfs/pnfs.c
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@@ -1797,6 +1797,35 @@ pnfs_set_layoutcommit(struct nfs_pgio_header *hdr)
}
EXPORT_SYMBOL_GPL(pnfs_set_layoutcommit);
void pnfs_commit_set_layoutcommit(struct nfs_commit_data *data)
{
struct inode *inode = data->inode;
struct nfs_inode *nfsi = NFS_I(inode);
bool mark_as_dirty = false;
spin_lock(&inode->i_lock);
if (!test_and_set_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags)) {
mark_as_dirty = true;
dprintk("%s: Set layoutcommit for inode %lu ",
__func__, inode->i_ino);
}
if (!test_and_set_bit(NFS_LSEG_LAYOUTCOMMIT, &data->lseg->pls_flags)) {
/* references matched in nfs4_layoutcommit_release */
pnfs_get_lseg(data->lseg);
}
if (data->lwb > nfsi->layout->plh_lwb)
nfsi->layout->plh_lwb = data->lwb;
spin_unlock(&inode->i_lock);
dprintk("%s: lseg %p end_pos %llu\n",
__func__, data->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 */
if (mark_as_dirty)
mark_inode_dirty_sync(inode);
}
EXPORT_SYMBOL_GPL(pnfs_commit_set_layoutcommit);
void pnfs_cleanup_layoutcommit(struct nfs4_layoutcommit_data *data)
{
struct nfs_server *nfss = NFS_SERVER(data->args.inode);