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Diffstat (limited to 'fs/xfs/xfs_trans_buf.c')
-rw-r--r--fs/xfs/xfs_trans_buf.c135
1 files changed, 118 insertions, 17 deletions
diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c
index 3edf5dbee00..b8eef0549f3 100644
--- a/fs/xfs/xfs_trans_buf.c
+++ b/fs/xfs/xfs_trans_buf.c
@@ -17,17 +17,15 @@
*/
#include "xfs.h"
#include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
#include "xfs_inode.h"
+#include "xfs_trans.h"
#include "xfs_buf_item.h"
#include "xfs_trans_priv.h"
#include "xfs_error.h"
@@ -277,6 +275,10 @@ xfs_trans_read_buf_map(
XFS_BUF_UNDONE(bp);
xfs_buf_stale(bp);
xfs_buf_relse(bp);
+
+ /* bad CRC means corrupted metadata */
+ if (error == EFSBADCRC)
+ error = EFSCORRUPTED;
return error;
}
#ifdef DEBUG
@@ -316,7 +318,18 @@ xfs_trans_read_buf_map(
ASSERT(bp->b_iodone == NULL);
XFS_BUF_READ(bp);
bp->b_ops = ops;
- xfsbdstrat(tp->t_mountp, bp);
+
+ /*
+ * XXX(hch): clean up the error handling here to be less
+ * of a mess..
+ */
+ if (XFS_FORCED_SHUTDOWN(mp)) {
+ trace_xfs_bdstrat_shut(bp, _RET_IP_);
+ xfs_bioerror_relse(bp);
+ } else {
+ xfs_buf_iorequest(bp);
+ }
+
error = xfs_buf_iowait(bp);
if (error) {
xfs_buf_ioerror_alert(bp, __func__);
@@ -329,6 +342,9 @@ xfs_trans_read_buf_map(
if (tp->t_flags & XFS_TRANS_DIRTY)
xfs_force_shutdown(tp->t_mountp,
SHUTDOWN_META_IO_ERROR);
+ /* bad CRC means corrupted metadata */
+ if (error == EFSBADCRC)
+ error = EFSCORRUPTED;
return error;
}
}
@@ -366,6 +382,10 @@ xfs_trans_read_buf_map(
if (tp->t_flags & XFS_TRANS_DIRTY)
xfs_force_shutdown(tp->t_mountp, SHUTDOWN_META_IO_ERROR);
xfs_buf_relse(bp);
+
+ /* bad CRC means corrupted metadata */
+ if (error == EFSBADCRC)
+ error = EFSCORRUPTED;
return error;
}
#ifdef DEBUG
@@ -397,7 +417,6 @@ shutdown_abort:
return XFS_ERROR(EIO);
}
-
/*
* Release the buffer bp which was previously acquired with one of the
* xfs_trans_... buffer allocation routines if the buffer has not
@@ -506,7 +525,7 @@ xfs_trans_brelse(xfs_trans_t *tp,
/*
* Mark the buffer as not needing to be unlocked when the buf item's
- * IOP_UNLOCK() routine is called. The buffer must already be locked
+ * iop_unlock() routine is called. The buffer must already be locked
* and associated with the given transaction.
*/
/* ARGSUSED */
@@ -603,8 +622,14 @@ xfs_trans_log_buf(xfs_trans_t *tp,
tp->t_flags |= XFS_TRANS_DIRTY;
bip->bli_item.li_desc->lid_flags |= XFS_LID_DIRTY;
- bip->bli_flags |= XFS_BLI_LOGGED;
- xfs_buf_item_log(bip, first, last);
+
+ /*
+ * If we have an ordered buffer we are not logging any dirty range but
+ * it still needs to be marked dirty and that it has been logged.
+ */
+ bip->bli_flags |= XFS_BLI_DIRTY | XFS_BLI_LOGGED;
+ if (!(bip->bli_flags & XFS_BLI_ORDERED))
+ xfs_buf_item_log(bip, first, last);
}
@@ -659,6 +684,7 @@ xfs_trans_binval(
ASSERT(XFS_BUF_ISSTALE(bp));
ASSERT(!(bip->bli_flags & (XFS_BLI_LOGGED | XFS_BLI_DIRTY)));
ASSERT(!(bip->__bli_format.blf_flags & XFS_BLF_INODE_BUF));
+ ASSERT(!(bip->__bli_format.blf_flags & XFS_BLFT_MASK));
ASSERT(bip->__bli_format.blf_flags & XFS_BLF_CANCEL);
ASSERT(bip->bli_item.li_desc->lid_flags & XFS_LID_DIRTY);
ASSERT(tp->t_flags & XFS_TRANS_DIRTY);
@@ -671,6 +697,7 @@ xfs_trans_binval(
bip->bli_flags &= ~(XFS_BLI_INODE_BUF | XFS_BLI_LOGGED | XFS_BLI_DIRTY);
bip->__bli_format.blf_flags &= ~XFS_BLF_INODE_BUF;
bip->__bli_format.blf_flags |= XFS_BLF_CANCEL;
+ bip->__bli_format.blf_flags &= ~XFS_BLFT_MASK;
for (i = 0; i < bip->bli_format_count; i++) {
memset(bip->bli_formats[i].blf_data_map, 0,
(bip->bli_formats[i].blf_map_size * sizeof(uint)));
@@ -702,12 +729,13 @@ xfs_trans_inode_buf(
ASSERT(atomic_read(&bip->bli_refcount) > 0);
bip->bli_flags |= XFS_BLI_INODE_BUF;
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DINO_BUF);
}
/*
* This call is used to indicate that the buffer is going to
* be staled and was an inode buffer. This means it gets
- * special processing during unpin - where any inodes
+ * special processing during unpin - where any inodes
* associated with the buffer should be removed from ail.
* There is also special processing during recovery,
* any replay of the inodes in the buffer needs to be
@@ -726,6 +754,7 @@ xfs_trans_stale_inode_buf(
bip->bli_flags |= XFS_BLI_STALE_INODE;
bip->bli_item.li_cb = xfs_buf_iodone;
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DINO_BUF);
}
/*
@@ -749,8 +778,66 @@ xfs_trans_inode_alloc_buf(
ASSERT(atomic_read(&bip->bli_refcount) > 0);
bip->bli_flags |= XFS_BLI_INODE_ALLOC_BUF;
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DINO_BUF);
}
+/*
+ * Mark the buffer as ordered for this transaction. This means
+ * that the contents of the buffer are not recorded in the transaction
+ * but it is tracked in the AIL as though it was. This allows us
+ * to record logical changes in transactions rather than the physical
+ * changes we make to the buffer without changing writeback ordering
+ * constraints of metadata buffers.
+ */
+void
+xfs_trans_ordered_buf(
+ struct xfs_trans *tp,
+ struct xfs_buf *bp)
+{
+ struct xfs_buf_log_item *bip = bp->b_fspriv;
+
+ ASSERT(bp->b_transp == tp);
+ ASSERT(bip != NULL);
+ ASSERT(atomic_read(&bip->bli_refcount) > 0);
+
+ bip->bli_flags |= XFS_BLI_ORDERED;
+ trace_xfs_buf_item_ordered(bip);
+}
+
+/*
+ * Set the type of the buffer for log recovery so that it can correctly identify
+ * and hence attach the correct buffer ops to the buffer after replay.
+ */
+void
+xfs_trans_buf_set_type(
+ struct xfs_trans *tp,
+ struct xfs_buf *bp,
+ enum xfs_blft type)
+{
+ struct xfs_buf_log_item *bip = bp->b_fspriv;
+
+ if (!tp)
+ return;
+
+ ASSERT(bp->b_transp == tp);
+ ASSERT(bip != NULL);
+ ASSERT(atomic_read(&bip->bli_refcount) > 0);
+
+ xfs_blft_to_flags(&bip->__bli_format, type);
+}
+
+void
+xfs_trans_buf_copy_type(
+ struct xfs_buf *dst_bp,
+ struct xfs_buf *src_bp)
+{
+ struct xfs_buf_log_item *sbip = src_bp->b_fspriv;
+ struct xfs_buf_log_item *dbip = dst_bp->b_fspriv;
+ enum xfs_blft type;
+
+ type = xfs_blft_from_flags(&sbip->__bli_format);
+ xfs_blft_to_flags(&dbip->__bli_format, type);
+}
/*
* Similar to xfs_trans_inode_buf(), this marks the buffer as a cluster of
@@ -769,14 +856,28 @@ xfs_trans_dquot_buf(
xfs_buf_t *bp,
uint type)
{
- xfs_buf_log_item_t *bip = bp->b_fspriv;
+ struct xfs_buf_log_item *bip = bp->b_fspriv;
- ASSERT(bp->b_transp == tp);
- ASSERT(bip != NULL);
ASSERT(type == XFS_BLF_UDQUOT_BUF ||
type == XFS_BLF_PDQUOT_BUF ||
type == XFS_BLF_GDQUOT_BUF);
- ASSERT(atomic_read(&bip->bli_refcount) > 0);
bip->__bli_format.blf_flags |= type;
+
+ switch (type) {
+ case XFS_BLF_UDQUOT_BUF:
+ type = XFS_BLFT_UDQUOT_BUF;
+ break;
+ case XFS_BLF_PDQUOT_BUF:
+ type = XFS_BLFT_PDQUOT_BUF;
+ break;
+ case XFS_BLF_GDQUOT_BUF:
+ type = XFS_BLFT_GDQUOT_BUF;
+ break;
+ default:
+ type = XFS_BLFT_UNKNOWN_BUF;
+ break;
+ }
+
+ xfs_trans_buf_set_type(tp, bp, type);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 05:38:36 +0000