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Diffstat (limited to 'target/linux/generic/patches-4.3/110-jffs2-use-.rename2-and-add-RENAME_WHITEOUT-support.patch')
-rw-r--r--target/linux/generic/patches-4.3/110-jffs2-use-.rename2-and-add-RENAME_WHITEOUT-support.patch86
1 files changed, 0 insertions, 86 deletions
diff --git a/target/linux/generic/patches-4.3/110-jffs2-use-.rename2-and-add-RENAME_WHITEOUT-support.patch b/target/linux/generic/patches-4.3/110-jffs2-use-.rename2-and-add-RENAME_WHITEOUT-support.patch
deleted file mode 100644
index d47aa45621..0000000000
--- a/target/linux/generic/patches-4.3/110-jffs2-use-.rename2-and-add-RENAME_WHITEOUT-support.patch
+++ /dev/null
@@ -1,86 +0,0 @@
-From: Felix Fietkau <nbd@openwrt.org>
-Date: Fri, 10 Apr 2015 13:35:29 +0200
-Subject: [PATCH] jffs2: use .rename2 and add RENAME_WHITEOUT support
-
-It is required for renames on overlayfs
-
-Signed-off-by: Felix Fietkau <nbd@openwrt.org>
----
-
---- a/fs/jffs2/dir.c
-+++ b/fs/jffs2/dir.c
-@@ -35,7 +35,7 @@ static int jffs2_mkdir (struct inode *,s
- static int jffs2_rmdir (struct inode *,struct dentry *);
- static int jffs2_mknod (struct inode *,struct dentry *,umode_t,dev_t);
- static int jffs2_rename (struct inode *, struct dentry *,
-- struct inode *, struct dentry *);
-+ struct inode *, struct dentry *, unsigned int);
-
- const struct file_operations jffs2_dir_operations =
- {
-@@ -57,7 +57,7 @@ const struct inode_operations jffs2_dir_
- .mkdir = jffs2_mkdir,
- .rmdir = jffs2_rmdir,
- .mknod = jffs2_mknod,
-- .rename = jffs2_rename,
-+ .rename2 = jffs2_rename,
- .get_acl = jffs2_get_acl,
- .set_acl = jffs2_set_acl,
- .setattr = jffs2_setattr,
-@@ -757,8 +757,27 @@ static int jffs2_mknod (struct inode *di
- return ret;
- }
-
-+static int jffs2_whiteout(struct inode *old_dir, struct dentry *old_dentry)
-+{
-+ struct dentry *wh;
-+ int err;
-+
-+ wh = d_alloc(old_dentry->d_parent, &old_dentry->d_name);
-+ if (!wh)
-+ return -ENOMEM;
-+
-+ err = jffs2_mknod(old_dir, wh, S_IFCHR | WHITEOUT_MODE,
-+ WHITEOUT_DEV);
-+ if (err)
-+ return err;
-+
-+ d_rehash(wh);
-+ return 0;
-+}
-+
- static int jffs2_rename (struct inode *old_dir_i, struct dentry *old_dentry,
-- struct inode *new_dir_i, struct dentry *new_dentry)
-+ struct inode *new_dir_i, struct dentry *new_dentry,
-+ unsigned int flags)
- {
- int ret;
- struct jffs2_sb_info *c = JFFS2_SB_INFO(old_dir_i->i_sb);
-@@ -766,6 +785,9 @@ static int jffs2_rename (struct inode *o
- uint8_t type;
- uint32_t now;
-
-+ if (flags & ~RENAME_WHITEOUT)
-+ return -EINVAL;
-+
- /* The VFS will check for us and prevent trying to rename a
- * file over a directory and vice versa, but if it's a directory,
- * the VFS can't check whether the victim is empty. The filesystem
-@@ -829,9 +851,14 @@ static int jffs2_rename (struct inode *o
- if (d_is_dir(old_dentry) && !victim_f)
- inc_nlink(new_dir_i);
-
-- /* Unlink the original */
-- ret = jffs2_do_unlink(c, JFFS2_INODE_INFO(old_dir_i),
-- old_dentry->d_name.name, old_dentry->d_name.len, NULL, now);
-+ if (flags & RENAME_WHITEOUT)
-+ /* Replace with whiteout */
-+ ret = jffs2_whiteout(old_dir_i, old_dentry);
-+ else
-+ /* Unlink the original */
-+ ret = jffs2_do_unlink(c, JFFS2_INODE_INFO(old_dir_i),
-+ old_dentry->d_name.name,
-+ old_dentry->d_name.len, NULL, now);
-
- /* We don't touch inode->i_nlink */
-