The log recovery I/O completion handler does not substancially differ from
the normal one except for the fact that we:
a) never retry failed writes
b) can have log items that aren't on the AIL
c) never have inode/dquot log items attached and thus don't need to
handle them
Add conditionals for (a) and (b) to the ioend code, while (c) doesn't
need special handling anyway.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
fs/xfs/libxfs/xfs_log_recover.h | 1 -
fs/xfs/xfs_buf.c | 20 ++++++++++++--------
fs/xfs/xfs_buf_item.c | 4 ++++
fs/xfs/xfs_buf_item_recover.c | 2 +-
fs/xfs/xfs_log_recover.c | 25 -------------------------
5 files changed, 17 insertions(+), 35 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_log_recover.h b/fs/xfs/libxfs/xfs_log_recover.h
index 641132d0e39ddd..3cca2bfe714cb2 100644
--- a/fs/xfs/libxfs/xfs_log_recover.h
+++ b/fs/xfs/libxfs/xfs_log_recover.h
@@ -121,7 +121,6 @@ struct xlog_recover {
void xlog_buf_readahead(struct xlog *log, xfs_daddr_t blkno, uint len,
const struct xfs_buf_ops *ops);
bool xlog_is_buffer_cancelled(struct xlog *log, xfs_daddr_t blkno, uint len);
-void xlog_recover_iodone(struct xfs_buf *bp);
void xlog_recover_release_intent(struct xlog *log, unsigned short intent_type,
uint64_t intent_id);
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 8bbd28f39a927b..1172d5fa06aad2 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -1241,6 +1241,15 @@ xfs_buf_ioend_handle_error(
xfs_buf_ioerror_alert_ratelimited(bp);
+ /*
+ * We're not going to bother about retrying this during recovery.
+ * One strike!
+ */
+ if (bp->b_flags & _XBF_LOGRECOVERY) {
+ xfs_force_shutdown(mp, SHUTDOWN_META_IO_ERROR);
+ return false;
+ }
+
/*
* Synchronous writes will have callers process the error.
*/
@@ -1310,13 +1319,6 @@ xfs_buf_ioend(
bp->b_ops->verify_read(bp);
if (!bp->b_error)
bp->b_flags |= XBF_DONE;
- } else if (bp->b_flags & _XBF_LOGRECOVERY) {
- /*
- * If this is a log recovery buffer, we aren't doing
- * transactional I/O yet so we need to let the log recovery code
- * handle I/O completions:
- */
- xlog_recover_iodone(bp);
} else {
if (!bp->b_error) {
bp->b_flags &= ~XBF_WRITE_FAIL;
@@ -1343,9 +1345,11 @@ xfs_buf_ioend(
xfs_buf_inode_iodone(bp);
else if (bp->b_flags & _XBF_DQUOTS)
xfs_buf_dquot_iodone(bp);
+
}
- bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD);
+ bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD |
+ _XBF_LOGRECOVERY);
if (bp->b_flags & XBF_ASYNC)
xfs_buf_relse(bp);
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index ccfd747d32e410..ab87c1294f7584 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -967,8 +967,12 @@ xfs_buf_item_done(
* xfs_trans_ail_delete() takes care of these.
*
* Either way, AIL is useless if we're forcing a shutdown.
+ *
+ * Note that log recovery writes might have buffer items that are not on
+ * the AIL during normal operations.
*/
xfs_trans_ail_delete(&bp->b_log_item->bli_item,
+ (bp->b_flags & _XBF_LOGRECOVERY) ? 0 :
SHUTDOWN_CORRUPT_INCORE);
xfs_buf_item_relse(bp);
}
diff --git a/fs/xfs/xfs_buf_item_recover.c b/fs/xfs/xfs_buf_item_recover.c
index 74c851f60eeeb1..1bbae3ab1322f7 100644
--- a/fs/xfs/xfs_buf_item_recover.c
+++ b/fs/xfs/xfs_buf_item_recover.c
@@ -414,7 +414,7 @@ xlog_recover_validate_buf_type(
*
* Write verifiers update the metadata LSN from log items attached to
* the buffer. Therefore, initialize a bli purely to carry the LSN to
- * the verifier. We'll clean it up in our ->iodone() callback.
+ * the verifier.
*/
if (bp->b_ops) {
struct xfs_buf_log_item *bip;
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 741a2c247bc585..b181f3253e6e74 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -265,31 +265,6 @@ xlog_header_check_mount(
return 0;
}
-void
-xlog_recover_iodone(
- struct xfs_buf *bp)
-{
- if (!bp->b_error) {
- bp->b_flags |= XBF_DONE;
- } else if (!XFS_FORCED_SHUTDOWN(bp->b_mount)) {
- /*
- * We're not going to bother about retrying this during
- * recovery. One strike!
- */
- xfs_buf_ioerror_alert(bp, __this_address);
- xfs_force_shutdown(bp->b_mount, SHUTDOWN_META_IO_ERROR);
- }
-
- /*
- * On v5 supers, a bli could be attached to update the metadata LSN.
- * Clean it up.
- */
- if (bp->b_log_item)
- xfs_buf_item_relse(bp);
- ASSERT(bp->b_log_item == NULL);
- bp->b_flags &= ~_XBF_LOGRECOVERY;
-}
-
/*
* This routine finds (to an approximation) the first block in the physical
* log which contains the given cycle. It uses a binary search algorithm.
--
2.26.2
