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Merge tag 'ext4_for_linus_urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

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Pull ext4 bugfix from Ted Ts'o:
 "Fix an ext4 metadata checksum regression introduced in v3.18-rc3"

* tag 'ext4_for_linus_urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  jbd2: fix regression where we fail to initialize checksum seed when loading
This commit is contained in:
Linus Torvalds
2014-12-01 20:11:49 -08:00
parent 2cb4a18262 32f3869184
commit 3a18ca0613
1 changed files with 2 additions and 3 deletions
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fs/jbd2/journal.c
+2 -3
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@@ -1853,13 +1853,12 @@ int jbd2_journal_set_features (journal_t *journal, unsigned long compat,
journal->j_chksum_driver = NULL;
return 0;
}
}
/* Precompute checksum seed for all metadata */
if (jbd2_journal_has_csum_v2or3(journal))
/* Precompute checksum seed for all metadata */
journal->j_csum_seed = jbd2_chksum(journal, ~0,
sb->s_uuid,
sizeof(sb->s_uuid));
}
}
/* If enabling v1 checksums, downgrade superblock */