mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-27 17:18:59 +00:00
e52f3e9b13
Remove upstreamed patches: generic/pending/101-clocksource-mips-gic-timer-fix-clocksource-counter-w.patch generic/pending/103-MIPS-c-r4k-fix-data-corruption-related-to-cache-coherence.patch generic/pending/182-net-qmi_wwan-add-BroadMobi-BM806U-2020-2033.patch lantiq/0025-MIPS-lantiq-gphy-Remove-reboot-remove-reset-asserts.patch Update patches that no longer apply: generic/pending/811-pci_disable_usb_common_quirks.patch ath79/0009-MIPS-ath79-add-lots-of-missing-registers.patch Fixes CVE-2018-6412. Compile-tested: octeon, x86/64. Runtime-tested: octeon, x86/64. Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
63 lines
1.7 KiB
Diff
63 lines
1.7 KiB
Diff
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 */
|
|
|