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authorDave Chinner <dchinner@redhat.com>2016-02-09 08:41:31 +0300
committerDave Chinner <david@fromorbit.com>2016-02-09 08:41:31 +0300
commitf67ca6eca89cddd355c83639a90109e245f9d5a7 (patch)
treeca04f23d57196375a13a7bf4375062964d17d3f6 /fs/xfs/xfs_log_recover.c
parent4b680afb42b9e1b504444583098401a00e63ed3c (diff)
downloadlinux-f67ca6eca89cddd355c83639a90109e245f9d5a7.tar.xz
xfs: RT bitmap and summary buffers are not typed
When logging buffers, we attach a type to them that follows the buffer all the way into the log and is used to identify the buffer contents in log recovery. Both the realtime summary buffers and the bitmap buffers do not have types defined or set, so when we try to log them we see assert failure: XFS: Assertion failed: (bip->bli_flags & XFS_BLI_STALE) || (xfs_blft_from_flags(&bip->__bli_format) > XFS_BLFT_UNKNOWN_BUF && xfs_blft_from_flags(&bip->__bli_format) < XFS_BLFT_MAX_BUF), file: fs/xfs/xfs_buf_item.c, line: 294 Fix this by adding buffer log format types for these buffers, and add identification support into log recovery for them. Only build the log recovery support if CONFIG_XFS_RT=y - we can't get into log recovery for real time filesystems if support is not built into the kernel, and this avoids potential build problems. Signed-off-by: Dave Chinner <dchinner@redhat.com> Tested-by: Ross Zwisler <ross.zwisler@linux.intel.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_log_recover.c')
-rw-r--r--fs/xfs/xfs_log_recover.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index da37beb76f6e..afdd326df923 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -2473,6 +2473,13 @@ xlog_recover_validate_buf_type(
}
bp->b_ops = &xfs_sb_buf_ops;
break;
+#ifdef CONFIG_XFS_RT
+ case XFS_BLFT_RTBITMAP_BUF:
+ case XFS_BLFT_RTSUMMARY_BUF:
+ /* no verification of RT buffers is done */
+ bp->b_ops = NULL;
+ break;
+#endif /* CONFIG_XFS_RT */
default:
xfs_warn(mp, "Unknown buffer type %d!",
xfs_blft_from_flags(buf_f));