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authorDave Chinner <dchinner@redhat.com>2016-02-09 05:41:31 (GMT)
committerDave Chinner <david@fromorbit.com>2016-02-09 05:41:31 (GMT)
commitf67ca6eca89cddd355c83639a90109e245f9d5a7 (patch)
treeca04f23d57196375a13a7bf4375062964d17d3f6 /fs/xfs/libxfs
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/libxfs')
-rw-r--r--fs/xfs/libxfs/xfs_log_format.h2
-rw-r--r--fs/xfs/libxfs/xfs_rtbitmap.c3
2 files changed, 5 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_log_format.h b/fs/xfs/libxfs/xfs_log_format.h
index 2653146..1be26ec 100644
--- a/fs/xfs/libxfs/xfs_log_format.h
+++ b/fs/xfs/libxfs/xfs_log_format.h
@@ -495,6 +495,8 @@ enum xfs_blft {
XFS_BLFT_ATTR_LEAF_BUF,
XFS_BLFT_ATTR_RMT_BUF,
XFS_BLFT_SB_BUF,
+ XFS_BLFT_RTBITMAP_BUF,
+ XFS_BLFT_RTSUMMARY_BUF,
XFS_BLFT_MAX_BUF = (1 << XFS_BLFT_BITS),
};
diff --git a/fs/xfs/libxfs/xfs_rtbitmap.c b/fs/xfs/libxfs/xfs_rtbitmap.c
index 9b59ffa..377a2e6 100644
--- a/fs/xfs/libxfs/xfs_rtbitmap.c
+++ b/fs/xfs/libxfs/xfs_rtbitmap.c
@@ -71,6 +71,9 @@ xfs_rtbuf_get(
mp->m_bsize, 0, &bp, NULL);
if (error)
return error;
+
+ xfs_trans_buf_set_type(tp, bp, issum ? XFS_BLFT_RTSUMMARY_BUF
+ : XFS_BLFT_RTBITMAP_BUF);
*bpp = bp;
return 0;
}