diff options
Diffstat (limited to 'target/linux/generic/pending-4.9/140-jffs2-use-.rename2-and-add-RENAME_WHITEOUT-support.patch')
-rw-r--r-- | target/linux/generic/pending-4.9/140-jffs2-use-.rename2-and-add-RENAME_WHITEOUT-support.patch | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/target/linux/generic/pending-4.9/140-jffs2-use-.rename2-and-add-RENAME_WHITEOUT-support.patch b/target/linux/generic/pending-4.9/140-jffs2-use-.rename2-and-add-RENAME_WHITEOUT-support.patch deleted file mode 100644 index c97e93250b..0000000000 --- a/target/linux/generic/pending-4.9/140-jffs2-use-.rename2-and-add-RENAME_WHITEOUT-support.patch +++ /dev/null @@ -1,62 +0,0 @@ -From: Felix Fietkau <nbd@nbd.name> -Subject: jffs2: use .rename2 and add RENAME_WHITEOUT support - -It is required for renames on overlayfs - -Signed-off-by: Felix Fietkau <nbd@nbd.name> ---- - ---- a/fs/jffs2/dir.c -+++ b/fs/jffs2/dir.c -@@ -752,6 +752,24 @@ 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, - unsigned int flags) -@@ -762,7 +780,7 @@ static int jffs2_rename (struct inode *o - uint8_t type; - uint32_t now; - -- if (flags & ~RENAME_NOREPLACE) -+ if (flags & ~(RENAME_NOREPLACE|RENAME_WHITEOUT)) - return -EINVAL; - - /* The VFS will check for us and prevent trying to rename a -@@ -828,9 +846,14 @@ 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 */ - |