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From: "J. Bruce Fields" <bfields@redhat.com>
To: linux-nfs@vger.kernel.org
Cc: "J. Bruce Fields" <bfields@redhat.com>
Subject: [PATCH 2/2] nfsd: fh_drop_write in nfsd_unlink
Date: Mon, 13 May 2019 11:27:03 -0400
Message-ID: <1557761223-14483-3-git-send-email-bfields@redhat.com> (raw)
In-Reply-To: <1557761223-14483-1-git-send-email-bfields@redhat.com>

From: "J. Bruce Fields" <bfields@redhat.com>

fh_want_write() can now be called twice, but I'm also fixing up the
callers not to do that.

Other cases include setattr and create.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/vfs.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 7dc98e14655d..fc24ee47eab5 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1786,12 +1786,12 @@ nfsd_unlink(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
 	rdentry = lookup_one_len(fname, dentry, flen);
 	host_err = PTR_ERR(rdentry);
 	if (IS_ERR(rdentry))
-		goto out_nfserr;
+		goto out_drop_write;
 
 	if (d_really_is_negative(rdentry)) {
 		dput(rdentry);
-		err = nfserr_noent;
-		goto out;
+		host_err = -ENOENT;
+		goto out_drop_write;
 	}
 
 	if (!type)
@@ -1805,6 +1805,8 @@ nfsd_unlink(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
 		host_err = commit_metadata(fhp);
 	dput(rdentry);
 
+out_drop_write:
+	fh_drop_write(fhp);
 out_nfserr:
 	err = nfserrno(host_err);
 out:
-- 
2.21.0


  parent reply index

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-13 15:27 [PATCH 0/2] nfsd shoudn't call mnt_want_write twice J. Bruce Fields
2019-05-13 15:27 ` [PATCH 1/2] nfsd: allow fh_want_write to be called twice J. Bruce Fields
2019-05-13 15:27 ` J. Bruce Fields [this message]
2019-05-16  1:20 [PATCH 00/12] exposing knfsd state to userspace J. Bruce Fields
2019-05-16  1:20 ` [PATCH 2/2] nfsd: fh_drop_write in nfsd_unlink J. Bruce Fields

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