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authorBrian Foster <bfoster@redhat.com>2016-01-04 15:55:10 +1100
committerDave Chinner <david@fromorbit.com>2016-01-04 15:55:10 +1100
commit9d94901f6e17c4c75d9aeb9efd4213a736c2ef9c (patch)
treed632bd5ce37d512b5a627984820cbaf27dbd8d1b /fs/xfs
parenta70f9fe52daa839d3925ac7e2dbd0ca758434493 (diff)
downloadlinux-9d94901f6e17c4c75d9aeb9efd4213a736c2ef9c.tar.bz2
xfs: refactor log record unpack and data processing
xlog_do_recovery_pass() duplicates a couple function calls related to processing log records because the function must handle wrapping around the end of the log if the head is behind the tail. This is implemented as separate loops. CRC verification pass support will modify how records are processed in both of these loops. Rather than continue to duplicate code, factor the calls that process a log record into a new helper and call that helper from both loops. This patch contains no functional changes. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/xfs_log_recover.c35
1 files changed, 23 insertions, 12 deletions
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 4f880d6cfb93..236ebaf678f2 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -4190,6 +4190,26 @@ xlog_unpack_data(
return 0;
}
+/*
+ * Unpack and process a log record.
+ */
+STATIC int
+xlog_recover_process(
+ struct xlog *log,
+ struct hlist_head rhash[],
+ struct xlog_rec_header *rhead,
+ char *dp,
+ int pass)
+{
+ int error;
+
+ error = xlog_unpack_data(rhead, dp, log);
+ if (error)
+ return error;
+
+ return xlog_recover_process_data(log, rhash, rhead, dp, pass);
+}
+
STATIC int
xlog_valid_rec_header(
struct xlog *log,
@@ -4432,12 +4452,8 @@ xlog_do_recovery_pass(
goto bread_err2;
}
- error = xlog_unpack_data(rhead, offset, log);
- if (error)
- goto bread_err2;
-
- error = xlog_recover_process_data(log, rhash,
- rhead, offset, pass);
+ error = xlog_recover_process(log, rhash, rhead, offset,
+ pass);
if (error)
goto bread_err2;
blk_no += bblks;
@@ -4465,12 +4481,7 @@ xlog_do_recovery_pass(
if (error)
goto bread_err2;
- error = xlog_unpack_data(rhead, offset, log);
- if (error)
- goto bread_err2;
-
- error = xlog_recover_process_data(log, rhash,
- rhead, offset, pass);
+ error = xlog_recover_process(log, rhash, rhead, offset, pass);
if (error)
goto bread_err2;
blk_no += bblks + hblks;