- merged 2.12 from PLD

[packages/grub2.git] / ignore-ext4-metadata_csum_seed.patch

diff --git a/ignore-ext4-metadata_csum_seed.patch b/ignore-ext4-metadata_csum_seed.patch
deleted file mode 100644 (file)
index 27b2277..0000000
--- a/ignore-ext4-metadata_csum_seed.patch
+++ /dev/null
@@ -1,59 +0,0 @@
-From 7fd5feff97c4b1f446f8fcf6d37aca0c64e7c763 Mon Sep 17 00:00:00 2001
-From: Javier Martinez Canillas <javierm@redhat.com>
-Date: Fri, 11 Jun 2021 21:36:16 +0200
-Subject: fs/ext2: Ignore checksum seed incompat feature
-
-This incompat feature is used to denote that the filesystem stored its
-metadata checksum seed in the superblock. This is used to allow tune2fs
-changing the UUID on a mounted metdata_csum filesystem without having
-to rewrite all the disk metadata. However, the GRUB doesn't use the
-metadata checksum at all. So, it can just ignore this feature if it
-is enabled. This is consistent with the GRUB filesystem code in general
-which just does a best effort to access the filesystem's data.
-
-The checksum seed incompat feature has to be removed from the ignore
-list if the support for metadata checksum verification is added to the
-GRUB ext2 driver later.
-
-Suggested-by: Eric Sandeen <esandeen@redhat.com>
-Suggested-by: Lukas Czerner <lczerner@redhat.com>
-Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
-Reviewed-by: Lukas Czerner <lczerner@redhat.com>
-Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
----
- grub-core/fs/ext2.c | 10 ++++++++--
- 1 file changed, 8 insertions(+), 2 deletions(-)
-
-diff --git a/grub-core/fs/ext2.c b/grub-core/fs/ext2.c
-index e7dd78e..4953a15 100644
---- a/grub-core/fs/ext2.c
-+++ b/grub-core/fs/ext2.c
-@@ -103,6 +103,7 @@ GRUB_MOD_LICENSE ("GPLv3+");
- #define EXT4_FEATURE_INCOMPAT_64BIT           0x0080
- #define EXT4_FEATURE_INCOMPAT_MMP             0x0100
- #define EXT4_FEATURE_INCOMPAT_FLEX_BG         0x0200
-+#define EXT4_FEATURE_INCOMPAT_CSUM_SEED               0x2000
- #define EXT4_FEATURE_INCOMPAT_ENCRYPT          0x10000
- 
- /* The set of back-incompatible features this driver DOES support. Add (OR)
-@@ -123,10 +124,15 @@ GRUB_MOD_LICENSE ("GPLv3+");
-  * mmp:            Not really back-incompatible - was added as such to
-  *                 avoid multiple read-write mounts. Safe to ignore for this
-  *                 RO driver.
-+ * checksum seed:  Not really back-incompatible - was added to allow tools
-+ *                 such as tune2fs to change the UUID on a mounted metadata
-+ *                 checksummed filesystem. Safe to ignore for now since the
-+ *                 driver doesn't support checksum verification. However, it
-+ *                 has to be removed from this list if the support is added later.
-  */
- #define EXT2_DRIVER_IGNORED_INCOMPAT ( EXT3_FEATURE_INCOMPAT_RECOVER \
--                                   | EXT4_FEATURE_INCOMPAT_MMP)
--
-+                                   | EXT4_FEATURE_INCOMPAT_MMP \
-+                                   | EXT4_FEATURE_INCOMPAT_CSUM_SEED)
- 
- #define EXT3_JOURNAL_MAGIC_NUMBER     0xc03b3998U
- 
--- 
-cgit v1.1
-