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From: Amir Goldstein <amir73il@gmail.com>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: Chengguang Xu <cgxu519@mykernel.net>, linux-unionfs@vger.kernel.org
Subject: [PATCH v3 2/4] ovl: pass ovl_fs to ovl_check_setxattr()
Date: Sat, 19 Jun 2021 12:26:17 +0300	[thread overview]
Message-ID: <20210619092619.1107608-3-amir73il@gmail.com> (raw)
In-Reply-To: <20210619092619.1107608-1-amir73il@gmail.com>

Instead of passing the overlay dentry.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
---
 fs/overlayfs/copy_up.c   | 10 +++++-----
 fs/overlayfs/dir.c       |  6 ++++--
 fs/overlayfs/namei.c     |  2 +-
 fs/overlayfs/overlayfs.h |  6 +++---
 fs/overlayfs/util.c      |  7 +++----
 5 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c
index 2846b943e80c..3fa68a5cc16e 100644
--- a/fs/overlayfs/copy_up.c
+++ b/fs/overlayfs/copy_up.c
@@ -331,8 +331,8 @@ struct ovl_fh *ovl_encode_real_fh(struct ovl_fs *ofs, struct dentry *real,
 	return ERR_PTR(err);
 }
 
-int ovl_set_origin(struct ovl_fs *ofs, struct dentry *dentry,
-		   struct dentry *lower, struct dentry *upper)
+int ovl_set_origin(struct ovl_fs *ofs, struct dentry *lower,
+		   struct dentry *upper)
 {
 	const struct ovl_fh *fh = NULL;
 	int err;
@@ -351,7 +351,7 @@ int ovl_set_origin(struct ovl_fs *ofs, struct dentry *dentry,
 	/*
 	 * Do not fail when upper doesn't support xattrs.
 	 */
-	err = ovl_check_setxattr(dentry, upper, OVL_XATTR_ORIGIN, fh->buf,
+	err = ovl_check_setxattr(ofs, upper, OVL_XATTR_ORIGIN, fh->buf,
 				 fh ? fh->fb.len : 0, 0);
 	kfree(fh);
 
@@ -526,13 +526,13 @@ static int ovl_copy_up_inode(struct ovl_copy_up_ctx *c, struct dentry *temp)
 	 * hard link.
 	 */
 	if (c->origin) {
-		err = ovl_set_origin(ofs, c->dentry, c->lowerpath.dentry, temp);
+		err = ovl_set_origin(ofs, c->lowerpath.dentry, temp);
 		if (err)
 			return err;
 	}
 
 	if (c->metacopy) {
-		err = ovl_check_setxattr(c->dentry, temp, OVL_XATTR_METACOPY,
+		err = ovl_check_setxattr(ofs, temp, OVL_XATTR_METACOPY,
 					 NULL, 0, -EOPNOTSUPP);
 		if (err)
 			return err;
diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c
index 03a22954fe61..9154222883e6 100644
--- a/fs/overlayfs/dir.c
+++ b/fs/overlayfs/dir.c
@@ -233,9 +233,10 @@ struct dentry *ovl_create_temp(struct dentry *workdir, struct ovl_cattr *attr)
 static int ovl_set_opaque_xerr(struct dentry *dentry, struct dentry *upper,
 			       int xerr)
 {
+	struct ovl_fs *ofs = OVL_FS(dentry->d_sb);
 	int err;
 
-	err = ovl_check_setxattr(dentry, upper, OVL_XATTR_OPAQUE, "y", 1, xerr);
+	err = ovl_check_setxattr(ofs, upper, OVL_XATTR_OPAQUE, "y", 1, xerr);
 	if (!err)
 		ovl_dentry_set_opaque(dentry);
 
@@ -1045,6 +1046,7 @@ static bool ovl_need_absolute_redirect(struct dentry *dentry, bool samedir)
 static int ovl_set_redirect(struct dentry *dentry, bool samedir)
 {
 	int err;
+	struct ovl_fs *ofs = OVL_FS(dentry->d_sb);
 	const char *redirect = ovl_dentry_get_redirect(dentry);
 	bool absolute_redirect = ovl_need_absolute_redirect(dentry, samedir);
 
@@ -1055,7 +1057,7 @@ static int ovl_set_redirect(struct dentry *dentry, bool samedir)
 	if (IS_ERR(redirect))
 		return PTR_ERR(redirect);
 
-	err = ovl_check_setxattr(dentry, ovl_dentry_upper(dentry),
+	err = ovl_check_setxattr(ofs, ovl_dentry_upper(dentry),
 				 OVL_XATTR_REDIRECT,
 				 redirect, strlen(redirect), -EXDEV);
 	if (!err) {
diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c
index 210cd6f66e28..da063b18b419 100644
--- a/fs/overlayfs/namei.c
+++ b/fs/overlayfs/namei.c
@@ -811,7 +811,7 @@ static int ovl_fix_origin(struct ovl_fs *ofs, struct dentry *dentry,
 	if (err)
 		return err;
 
-	err = ovl_set_origin(ofs, dentry, lower, upper);
+	err = ovl_set_origin(ofs, lower, upper);
 	if (!err)
 		err = ovl_set_impure(dentry->d_parent, upper->d_parent);
 
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index 29d71f253db4..6e3a1bea1c9a 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -332,7 +332,7 @@ bool ovl_already_copied_up(struct dentry *dentry, int flags);
 bool ovl_check_origin_xattr(struct ovl_fs *ofs, struct dentry *dentry);
 bool ovl_check_dir_xattr(struct super_block *sb, struct dentry *dentry,
 			 enum ovl_xattr ox);
-int ovl_check_setxattr(struct dentry *dentry, struct dentry *upperdentry,
+int ovl_check_setxattr(struct ovl_fs *ofs, struct dentry *upperdentry,
 		       enum ovl_xattr ox, const void *value, size_t size,
 		       int xerr);
 int ovl_set_impure(struct dentry *dentry, struct dentry *upperdentry);
@@ -573,8 +573,8 @@ int ovl_copy_xattr(struct super_block *sb, struct dentry *old,
 int ovl_set_attr(struct dentry *upper, struct kstat *stat);
 struct ovl_fh *ovl_encode_real_fh(struct ovl_fs *ofs, struct dentry *real,
 				  bool is_upper);
-int ovl_set_origin(struct ovl_fs *ofs, struct dentry *dentry,
-		   struct dentry *lower, struct dentry *upper);
+int ovl_set_origin(struct ovl_fs *ofs, struct dentry *lower,
+		   struct dentry *upper);
 
 /* export.c */
 extern const struct export_operations ovl_export_operations;
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c
index b9d03627f364..81b8f135445a 100644
--- a/fs/overlayfs/util.c
+++ b/fs/overlayfs/util.c
@@ -600,12 +600,11 @@ const char *const ovl_xattr_table[][2] = {
 	OVL_XATTR_TAB_ENTRY(OVL_XATTR_METACOPY),
 };
 
-int ovl_check_setxattr(struct dentry *dentry, struct dentry *upperdentry,
+int ovl_check_setxattr(struct ovl_fs *ofs, struct dentry *upperdentry,
 		       enum ovl_xattr ox, const void *value, size_t size,
 		       int xerr)
 {
 	int err;
-	struct ovl_fs *ofs = dentry->d_sb->s_fs_info;
 
 	if (ofs->noxattr)
 		return xerr;
@@ -623,6 +622,7 @@ int ovl_check_setxattr(struct dentry *dentry, struct dentry *upperdentry,
 
 int ovl_set_impure(struct dentry *dentry, struct dentry *upperdentry)
 {
+	struct ovl_fs *ofs = OVL_FS(dentry->d_sb);
 	int err;
 
 	if (ovl_test_flag(OVL_IMPURE, d_inode(dentry)))
@@ -632,8 +632,7 @@ int ovl_set_impure(struct dentry *dentry, struct dentry *upperdentry)
 	 * Do not fail when upper doesn't support xattrs.
 	 * Upper inodes won't have origin nor redirect xattr anyway.
 	 */
-	err = ovl_check_setxattr(dentry, upperdentry, OVL_XATTR_IMPURE,
-				 "y", 1, 0);
+	err = ovl_check_setxattr(ofs, upperdentry, OVL_XATTR_IMPURE, "y", 1, 0);
 	if (!err)
 		ovl_set_flag(OVL_IMPURE, d_inode(dentry));
 
-- 
2.32.0


  parent reply	other threads:[~2021-06-19  9:26 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-19  9:26 [PATCH v3 0/4] Overlayfs fileattr related fixes Amir Goldstein
2021-06-19  9:26 ` [PATCH v3 1/4] fs: add generic helper for filling statx attribute flags Amir Goldstein
2021-06-19  9:31   ` Amir Goldstein
2021-06-19  9:26 ` Amir Goldstein [this message]
2021-06-19  9:26 ` [PATCH v3 3/4] ovl: copy up sync/noatime fileattr flags Amir Goldstein
2021-07-12 14:20   ` Miklos Szeredi
2021-07-12 15:51     ` Amir Goldstein
2021-07-12 15:52       ` Amir Goldstein
2021-07-14  8:47         ` Miklos Szeredi
2021-07-14 10:38           ` Amir Goldstein
2021-06-19  9:26 ` [PATCH v3 4/4] ovl: consistent behavior for immutable/append-only inodes Amir Goldstein
2021-07-12 12:21   ` Miklos Szeredi
2021-07-12 13:43     ` Amir Goldstein
2021-07-19 14:28 ` [PATCH v3 0/4] Overlayfs fileattr related fixes Miklos Szeredi

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