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From: Hans de Goede <hdegoede@redhat.com>
To: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Hans de Goede <hdegoede@redhat.com>,
	Christoph Hellwig <hch@infradead.org>,
	linux-fsdevel@vger.kernel.org
Subject: [PATCH 2/4] vboxsf: Make vboxsf_dir_create() return the handle for the created file
Date: Thu, 21 Jan 2021 14:03:15 +0100	[thread overview]
Message-ID: <20210121130317.146506-3-hdegoede@redhat.com> (raw)
In-Reply-To: <20210121130317.146506-1-hdegoede@redhat.com>

Make vboxsf_dir_create() optionally return the vboxsf-handle for
the created file. This is a preparation patch for adding atomic_open
support.

Fixes: 0fd169576648 ("fs: Add VirtualBox guest shared folder (vboxsf) support")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 fs/vboxsf/dir.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/fs/vboxsf/dir.c b/fs/vboxsf/dir.c
index c3e68ad6c0f4..0664787f2b74 100644
--- a/fs/vboxsf/dir.c
+++ b/fs/vboxsf/dir.c
@@ -253,7 +253,7 @@ static int vboxsf_dir_instantiate(struct inode *parent, struct dentry *dentry,
 }
 
 static int vboxsf_dir_create(struct inode *parent, struct dentry *dentry,
-			     umode_t mode, bool is_dir, bool excl)
+			     umode_t mode, bool is_dir, bool excl, u64 *handle_ret)
 {
 	struct vboxsf_inode *sf_parent_i = VBOXSF_I(parent);
 	struct vboxsf_sbi *sbi = VBOXSF_SBI(parent->i_sb);
@@ -278,28 +278,32 @@ static int vboxsf_dir_create(struct inode *parent, struct dentry *dentry,
 	if (params.result != SHFL_FILE_CREATED)
 		return -EPERM;
 
-	vboxsf_close(sbi->root, params.handle);
-
 	err = vboxsf_dir_instantiate(parent, dentry, &params.info);
 	if (err)
-		return err;
+		goto out;
 
 	/* parent directory access/change time changed */
 	sf_parent_i->force_restat = 1;
 
-	return 0;
+out:
+	if (err == 0 && handle_ret)
+		*handle_ret = params.handle;
+	else
+		vboxsf_close(sbi->root, params.handle);
+
+	return err;
 }
 
 static int vboxsf_dir_mkfile(struct inode *parent, struct dentry *dentry,
 			     umode_t mode, bool excl)
 {
-	return vboxsf_dir_create(parent, dentry, mode, false, excl);
+	return vboxsf_dir_create(parent, dentry, mode, false, excl, NULL);
 }
 
 static int vboxsf_dir_mkdir(struct inode *parent, struct dentry *dentry,
 			    umode_t mode)
 {
-	return vboxsf_dir_create(parent, dentry, mode, true, true);
+	return vboxsf_dir_create(parent, dentry, mode, true, true, NULL);
 }
 
 static int vboxsf_dir_unlink(struct inode *parent, struct dentry *dentry)
-- 
2.28.0


  parent reply	other threads:[~2021-01-21 13:11 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-21 13:03 [PATCH 0/4] vboxsf: Add support for the atomic_open directory-inode op Hans de Goede
2021-01-21 13:03 ` [PATCH 1/4] vboxsf: Honor excl flag to the dir-inode create op Hans de Goede
2021-01-21 13:03 ` Hans de Goede [this message]
2021-01-21 13:03 ` [PATCH 3/4] vboxsf: Add vboxsf_[create|release]_sf_handle() helpers Hans de Goede
2021-01-21 13:03 ` [PATCH 4/4] vboxsf: Add support for the atomic_open directory-inode op Hans de Goede

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