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authorTrond Myklebust <Trond.Myklebust@netapp.com>2012-03-15 17:16:40 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-03-17 11:09:33 -0400
commit8dd3775889345850ecddd689b5c200cdd91bd8c9 (patch)
treeea697cfcac3f3a927e90d0048e9ed76b5a3ea8e5 /fs/nfs/read.c
parent95a13f7b33be87d85d8e6652126a3f4d64d164db (diff)
NFSv4.1: Clean ups and bugfixes for the pNFS read/writeback/commit code
Move more pnfs-isms out of the generic commit code. Bugfixes: - filelayout_scan_commit_lists doesn't need to get/put the lseg. In fact since it is run under the inode->i_lock, the lseg_put() can deadlock. - Ensure that we distinguish between what needs to be done for commit-to-data server and what needs to be done for commit-to-MDS using the new flag PG_COMMIT_TO_DS. Otherwise we may end up calling put_lseg() on a bucket for a struct nfs_page that got written through the MDS. - Fix a case where we were using list_del() on an nfs_page->wb_list instead of list_del_init(). - filelayout_initiate_commit needs to call filelayout_commit_release on error instead of the mds_ops->rpc_release(). Otherwise it won't clear the commit lock. Cleanups: - Let the files layout manage the commit lists for the pNFS case. Don't expose stuff like pnfs_choose_commit_list, and the fact that the commit buckets hold references to the layout segment in common code. - Cast out the put_lseg() calls for the struct nfs_read/write_data->lseg into the pNFS layer from whence they came. - Let the pNFS layer manage the NFS_INO_PNFS_COMMIT bit. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Fred Isaman <iisaman@netapp.com>
Diffstat (limited to 'fs/nfs/read.c')
-rw-r--r--fs/nfs/read.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 3c2540d532c..2662c0298dd 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -66,7 +66,6 @@ void nfs_readdata_free(struct nfs_read_data *p)
void nfs_readdata_release(struct nfs_read_data *rdata)
{
- put_lseg(rdata->lseg);
put_nfs_open_context(rdata->args.context);
nfs_readdata_free(rdata);
}