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authorLinus Torvalds <torvalds@linux-foundation.org>2019-12-14 22:13:54 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-12-14 22:13:54 +0300
commit81c64b0bd0900405b4e55f3d48a2fc7dd5e1676c (patch)
treea4cdfebf4e3e39bd80b1685c389ffea04baaf8dd /Documentation
parente31736d9fae841e8a1612f263136454af10f476a (diff)
parent35c6cb41686c4de03d738fd95617a0cf7441bbe1 (diff)
downloadlinux-81c64b0bd0900405b4e55f3d48a2fc7dd5e1676c.tar.xz
Merge tag 'ovl-fixes-5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs fixes from Miklos Szeredi: "Fix some bugs and documentation" * tag 'ovl-fixes-5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: docs: filesystems: overlayfs: Fix restview warnings docs: filesystems: overlayfs: Rename overlayfs.txt to .rst ovl: relax WARN_ON() on rename to self ovl: fix corner case of non-unique st_dev;st_ino ovl: don't use a temp buf for encoding real fh ovl: make sure that real fid is 32bit aligned in memory ovl: fix lookup failure on multi lower squashfs
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/filesystems/overlayfs.rst (renamed from Documentation/filesystems/overlayfs.txt)10
1 files changed, 6 insertions, 4 deletions
diff --git a/Documentation/filesystems/overlayfs.txt b/Documentation/filesystems/overlayfs.rst
index 845d689e0fd7..e443be7928db 100644
--- a/Documentation/filesystems/overlayfs.txt
+++ b/Documentation/filesystems/overlayfs.rst
@@ -1,3 +1,5 @@
+.. SPDX-License-Identifier: GPL-2.0
+
Written by: Neil Brown
Please see MAINTAINERS file for where to send questions.
@@ -181,7 +183,7 @@ Kernel config options:
worried about backward compatibility with kernels that have the redirect_dir
feature and follow redirects even if turned off.
-Module options (can also be changed through /sys/module/overlay/parameters/*):
+Module options (can also be changed through /sys/module/overlay/parameters/):
- "redirect_dir=BOOL":
See OVERLAY_FS_REDIRECT_DIR kernel config option above.
@@ -263,7 +265,7 @@ top, lower2 the middle and lower3 the bottom layer.
Metadata only copy up
---------------------
+---------------------
When metadata only copy up feature is enabled, overlayfs will only copy
up metadata (as opposed to whole file), when a metadata specific operation
@@ -286,10 +288,10 @@ pointed by REDIRECT. This should not be possible on local system as setting
"trusted." xattrs will require CAP_SYS_ADMIN. But it should be possible
for untrusted layers like from a pen drive.
-Note: redirect_dir={off|nofollow|follow(*)} conflicts with metacopy=on, and
+Note: redirect_dir={off|nofollow|follow[*]} conflicts with metacopy=on, and
results in an error.
-(*) redirect_dir=follow only conflicts with metacopy=on if upperdir=... is
+[*] redirect_dir=follow only conflicts with metacopy=on if upperdir=... is
given.
Sharing and copying layers