On Wed, 17 Jul 2013 16:50:17 -0400
"J. Bruce Fields" <bfields@xxxxxxxxxx> wrote:
> From: "J. Bruce Fields" <bfields@xxxxxxxxxx>
>
> As a temporary fix, nfsd was breaking all leases on unlink, link,
> rename, and setattr.
>
> Now that we can distinguish between leases and delegations, we can be
> nicer and break only the delegations, and not bother lease-holders with
> operations they don't care about.
>
> And we get to delete some code while we're at it.
>
> Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx>
> ---
> fs/nfsd/vfs.c | 27 ---------------------------
> 1 file changed, 27 deletions(-)
>
> diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
> index 2586f6d..51a5ede 100644
> --- a/fs/nfsd/vfs.c
> +++ b/fs/nfsd/vfs.c
> @@ -273,13 +273,6 @@ out:
> return err;
> }
>
> -static int nfsd_break_lease(struct inode *inode)
> -{
> - if (!S_ISREG(inode->i_mode))
> - return 0;
> - return break_lease(inode, O_WRONLY | O_NONBLOCK);
> -}
> -
> /*
> * Commit metadata changes to stable storage.
> */
> @@ -422,9 +415,6 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
>
> err = nfserr_notsync;
> if (!check_guard || guardtime == inode->i_ctime.tv_sec) {
> - host_err = nfsd_break_lease(inode);
> - if (host_err)
> - goto out_nfserr;
> fh_lock(fhp);
>
> host_err = notify_change(dentry, iap, NULL);
> @@ -1735,11 +1725,6 @@ nfsd_link(struct svc_rqst *rqstp, struct svc_fh *ffhp,
> err = nfserr_noent;
> if (!dold->d_inode)
> goto out_dput;
> - host_err = nfsd_break_lease(dold->d_inode);
> - if (host_err) {
> - err = nfserrno(host_err);
> - goto out_dput;
> - }
> host_err = vfs_link(dold, dirp, dnew, NULL);
> if (!host_err) {
> err = nfserrno(commit_metadata(ffhp));
> @@ -1833,14 +1818,6 @@ nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen,
> if (ffhp->fh_export->ex_path.dentry != tfhp->fh_export->ex_path.dentry)
> goto out_dput_new;
>
> - host_err = nfsd_break_lease(odentry->d_inode);
> - if (host_err)
> - goto out_dput_new;
> - if (ndentry->d_inode) {
> - host_err = nfsd_break_lease(ndentry->d_inode);
> - if (host_err)
> - goto out_dput_new;
> - }
> host_err = vfs_rename(fdir, odentry, tdir, ndentry, NULL);
> if (!host_err) {
> host_err = commit_metadata(tfhp);
> @@ -1910,16 +1887,12 @@ nfsd_unlink(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
> if (!type)
> type = rdentry->d_inode->i_mode & S_IFMT;
>
> - host_err = nfsd_break_lease(rdentry->d_inode);
> - if (host_err)
> - goto out_put;
> if (type != S_IFDIR)
> host_err = vfs_unlink(dirp, rdentry, NULL);
> else
> host_err = vfs_rmdir(dirp, rdentry);
> if (!host_err)
> host_err = commit_metadata(fhp);
> -out_put:
> dput(rdentry);
>
> out_nfserr:
Acked-by: Jeff Layton <jlayton@xxxxxxxxxx>
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