[OS-BUILD PATCH] [redhat] New configs in fs/xfs - kernel - Fedora mailing-lists

21 Oct 2020

From: Fedora Kernel Team kernel-team@fedoraproject.org
Hi,
As part of the ongoing rebase effort, the following configuration
options need to be reviewed.
As a reminder, the ARK configuration flow involves moving unreviewed
configuration options from the pending directory to the ark directory.
In the diff below, options are removed from the pending directory and
added to the ark hierarchy. The final options that need to be ACKed
are the files that are being added to the ark hierarchy.
If the value for a file that is added should be changed, please reply
with a better option.
CONFIG_XFS_SUPPORT_V4:
The V4 filesystem format lacks certain features that are supported
 by the V5 format, such as metadata checksumming, strengthened
 metadata verification, and the ability to store timestamps past the
 year 2038.  Because of this, the V4 format is deprecated.  All users
 should upgrade by backing up their files, reformatting, and restoring
 from the backup.
Administrators and users can detect a V4 filesystem by running
 xfs_info against a filesystem mountpoint and checking for a string
 beginning with "crc=".  If the string "crc=0" is found, the
 filesystem is a V4 filesystem.  If no such string is found, please
 upgrade xfsprogs to the latest version and try again.
This option will become default N in September 2025.  Support for the
 V4 format will be removed entirely in September 2030.  Distributors
 can say N here to withdraw support earlier.
To continue supporting the old V4 format (crc=0), say Y.
 To close off an attack surface, say N.
Symbol: XFS_SUPPORT_V4 [=y]
 Type  : bool
 Defined at fs/xfs/Kconfig:25
   Prompt: Support deprecated V4 (crc=0) format
   Depends on: BLOCK [=y] && XFS_FS [=m]
   Location:
     -> File systems
       -> XFS filesystem support (XFS_FS [=m])
---
Cc: Brian Foster bfoster@redhat.com
Cc: Carlos Maiolino cmaiolin@redhat.com
Signed-off-by: Fedora Kernel Team kernel-team@fedoraproject.org
---
 .../common/generic/CONFIG_XFS_SUPPORT_V4      |  1 +
 .../generic/CONFIG_XFS_SUPPORT_V4             | 34 -------------------
 2 files changed, 1 insertion(+), 34 deletions(-)
 create mode 100644 redhat/configs/common/generic/CONFIG_XFS_SUPPORT_V4
 delete mode 100644 redhat/configs/pending-common/generic/CONFIG_XFS_SUPPORT_V4

diff --git a/redhat/configs/common/generic/CONFIG_XFS_SUPPORT_V4 b/redhat/configs/common/generic/CONFIG_XFS_SUPPORT_V4
new file mode 100644
index 000000000000..12315e1fff2b
--- /dev/null
+++ b/redhat/configs/common/generic/CONFIG_XFS_SUPPORT_V4
@@ -0,0 +1 @@
+CONFIG_XFS_SUPPORT_V4=y
diff --git a/redhat/configs/pending-common/generic/CONFIG_XFS_SUPPORT_V4 b/redhat/configs/pending-common/generic/CONFIG_XFS_SUPPORT_V4
deleted file mode 100644
index aeb9b39ac5da..000000000000
--- a/redhat/configs/pending-common/generic/CONFIG_XFS_SUPPORT_V4
+++ /dev/null
@@ -1,34 +0,0 @@
-# CONFIG_XFS_SUPPORT_V4:
-# 
-# The V4 filesystem format lacks certain features that are supported
-# by the V5 format, such as metadata checksumming, strengthened
-# metadata verification, and the ability to store timestamps past the
-# year 2038.  Because of this, the V4 format is deprecated.  All users
-# should upgrade by backing up their files, reformatting, and restoring
-# from the backup.
-# 
-# Administrators and users can detect a V4 filesystem by running
-# xfs_info against a filesystem mountpoint and checking for a string
-# beginning with "crc=".  If the string "crc=0" is found, the
-# filesystem is a V4 filesystem.  If no such string is found, please
-# upgrade xfsprogs to the latest version and try again.
-# 
-# This option will become default N in September 2025.  Support for the
-# V4 format will be removed entirely in September 2030.  Distributors
-# can say N here to withdraw support earlier.
-# 
-# To continue supporting the old V4 format (crc=0), say Y.
-# To close off an attack surface, say N.
-# 
-# Symbol: XFS_SUPPORT_V4 [=y]
-# Type  : bool
-# Defined at fs/xfs/Kconfig:25
-#   Prompt: Support deprecated V4 (crc=0) format
-#   Depends on: BLOCK [=y] && XFS_FS [=m]
-#   Location:
-#     -> File systems
-#       -> XFS filesystem support (XFS_FS [=m])
-# 
-# 
-# 
-CONFIG_XFS_SUPPORT_V4=y
-- 
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