LU-11838 ldiskfs: add rhel8 server support

[fs/lustre-release.git] / ldiskfs / kernel_patches / patches / rhel8 / ext4-dont-check-before-replay.patch

diff --git a/ldiskfs/kernel_patches/patches/rhel8/ext4-dont-check-before-replay.patch b/ldiskfs/kernel_patches/patches/rhel8/ext4-dont-check-before-replay.patch
new file mode 100644 (file)
index 0000000..6413133
--- /dev/null
+++ b/ldiskfs/kernel_patches/patches/rhel8/ext4-dont-check-before-replay.patch
@@ -0,0 +1,36 @@
+When ldiskfs run in failover mode whith read-only disk.
+Part of allocation updates are lost and ldiskfs may fail
+while mounting this is due to inconsistent state of
+group-descriptor. Group-descriptor check is added after
+journal replay.
+
+Index: linux-4.18.0-32.el8.x86_64/fs/ext4/super.c
+===================================================================
+--- linux-4.18.0-32.el8.x86_64.orig/fs/ext4/super.c
++++ linux-4.18.0-32.el8.x86_64/fs/ext4/super.c
+@@ -4092,11 +4092,6 @@ static int ext4_fill_super(struct super_
+               }
+       }
+       sbi->s_gdb_count = db_count;
+-      if (!ext4_check_descriptors(sb, logical_sb_block, &first_not_zeroed)) {
+-              ext4_msg(sb, KERN_ERR, "group descriptors corrupted!");
+-              ret = -EFSCORRUPTED;
+-              goto failed_mount2;
+-      }
+ 
+       timer_setup(&sbi->s_err_report, print_daily_error_info, 0);
+ 
+@@ -4238,6 +4233,13 @@ static int ext4_fill_super(struct super_
+       sbi->s_journal->j_commit_callback = ext4_journal_commit_callback;
+ 
+ no_journal:
++
++      if (!ext4_check_descriptors(sb, logical_sb_block, &first_not_zeroed)) {
++              ext4_msg(sb, KERN_ERR, "group descriptors corrupted!");
++              ret = -EFSCORRUPTED;
++              goto failed_mount_wq;
++      }
++
+       if (!test_opt(sb, NO_MBCACHE)) {
+               sbi->s_ea_block_cache = ext4_xattr_create_cache();
+               if (!sbi->s_ea_block_cache) {