From: Olga Kornievskaia kolga@netapp.com
commit 65caafd0d2145d1dd02072c4ced540624daeab40 upstream.
Reverting commit d03727b248d0 "NFSv4 fix CLOSE not waiting for direct IO compeletion". This patch made it so that fput() by calling inode_dio_done() in nfs_file_release() would wait uninterruptably for any outstanding directIO to the file (but that wait on IO should be killable).
The problem the patch was also trying to address was REMOVE returning ERR_ACCESS because the file is still opened, is supposed to be resolved by server returning ERR_FILE_OPEN and not ERR_ACCESS.
Signed-off-by: Olga Kornievskaia kolga@netapp.com Signed-off-by: Anna Schumaker Anna.Schumaker@Netapp.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- fs/nfs/direct.c | 13 ++++--------- fs/nfs/file.c | 1 - 2 files changed, 4 insertions(+), 10 deletions(-)
--- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -396,6 +396,8 @@ static void nfs_direct_complete(struct n { struct inode *inode = dreq->inode;
+ inode_dio_end(inode); + if (dreq->iocb) { long res = (long) dreq->error; if (dreq->count != 0) { @@ -407,10 +409,7 @@ static void nfs_direct_complete(struct n
complete(&dreq->completion);
- igrab(inode); nfs_direct_req_release(dreq); - inode_dio_end(inode); - iput(inode); }
static void nfs_direct_read_completion(struct nfs_pgio_header *hdr) @@ -540,10 +539,8 @@ static ssize_t nfs_direct_read_schedule_ * generic layer handle the completion. */ if (requested_bytes == 0) { - igrab(inode); - nfs_direct_req_release(dreq); inode_dio_end(inode); - iput(inode); + nfs_direct_req_release(dreq); return result < 0 ? result : -EIO; }
@@ -960,10 +957,8 @@ static ssize_t nfs_direct_write_schedule * generic layer handle the completion. */ if (requested_bytes == 0) { - igrab(inode); - nfs_direct_req_release(dreq); inode_dio_end(inode); - iput(inode); + nfs_direct_req_release(dreq); return result < 0 ? result : -EIO; }
--- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -82,7 +82,6 @@ nfs_file_release(struct inode *inode, st dprintk("NFS: release(%pD2)\n", filp);
nfs_inc_stats(inode, NFSIOS_VFSRELEASE); - inode_dio_wait(inode); nfs_file_clear_open_context(filp); return 0; }