These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / fs / xfs / libxfs / xfs_btree.c

diff --git a/kernel/fs/xfs/libxfs/xfs_btree.c b/kernel/fs/xfs/libxfs/xfs_btree.c
index c72283d..af1bbee 100644 (file)
--- a/kernel/fs/xfs/libxfs/xfs_btree.c
+++ b/kernel/fs/xfs/libxfs/xfs_btree.c
@@ -32,6 +32,7 @@
 #include "xfs_trace.h"
 #include "xfs_cksum.h"
 #include "xfs_alloc.h"
+#include "xfs_log.h"
 
 /*
  * Cursor allocation zone.
@@ -65,7 +66,8 @@ xfs_btree_check_lblock(
 
        if (xfs_sb_version_hascrc(&mp->m_sb)) {
                lblock_ok = lblock_ok &&
-                       uuid_equal(&block->bb_u.l.bb_uuid, &mp->m_sb.sb_uuid) &&
+                       uuid_equal(&block->bb_u.l.bb_uuid,
+                                  &mp->m_sb.sb_meta_uuid) &&
                        block->bb_u.l.bb_blkno == cpu_to_be64(
                                bp ? bp->b_bn : XFS_BUF_DADDR_NULL);
        }
@@ -115,7 +117,8 @@ xfs_btree_check_sblock(
 
        if (xfs_sb_version_hascrc(&mp->m_sb)) {
                sblock_ok = sblock_ok &&
-                       uuid_equal(&block->bb_u.s.bb_uuid, &mp->m_sb.sb_uuid) &&
+                       uuid_equal(&block->bb_u.s.bb_uuid,
+                                  &mp->m_sb.sb_meta_uuid) &&
                        block->bb_u.s.bb_blkno == cpu_to_be64(
                                bp ? bp->b_bn : XFS_BUF_DADDR_NULL);
        }
@@ -220,7 +223,7 @@ xfs_btree_check_ptr(
  * long-form btree header.
  *
  * Prior to calculting the CRC, pull the LSN out of the buffer log item and put
- * it into the buffer so recovery knows what the last modifcation was that made
+ * it into the buffer so recovery knows what the last modification was that made
  * it to disk.
  */
 void
@@ -241,8 +244,14 @@ bool
 xfs_btree_lblock_verify_crc(
        struct xfs_buf          *bp)
 {
-       if (xfs_sb_version_hascrc(&bp->b_target->bt_mount->m_sb))
+       struct xfs_btree_block  *block = XFS_BUF_TO_BLOCK(bp);
+       struct xfs_mount        *mp = bp->b_target->bt_mount;
+
+       if (xfs_sb_version_hascrc(&mp->m_sb)) {
+               if (!xfs_log_check_lsn(mp, be64_to_cpu(block->bb_u.l.bb_lsn)))
+                       return false;
                return xfs_buf_verify_cksum(bp, XFS_BTREE_LBLOCK_CRC_OFF);
+       }
 
        return true;
 }
@@ -252,7 +261,7 @@ xfs_btree_lblock_verify_crc(
  * short-form btree header.
  *
  * Prior to calculting the CRC, pull the LSN out of the buffer log item and put
- * it into the buffer so recovery knows what the last modifcation was that made
+ * it into the buffer so recovery knows what the last modification was that made
  * it to disk.
  */
 void
@@ -273,8 +282,14 @@ bool
 xfs_btree_sblock_verify_crc(
        struct xfs_buf          *bp)
 {
-       if (xfs_sb_version_hascrc(&bp->b_target->bt_mount->m_sb))
+       struct xfs_btree_block  *block = XFS_BUF_TO_BLOCK(bp);
+       struct xfs_mount        *mp = bp->b_target->bt_mount;
+
+       if (xfs_sb_version_hascrc(&mp->m_sb)) {
+               if (!xfs_log_check_lsn(mp, be64_to_cpu(block->bb_u.s.bb_lsn)))
+                       return false;
                return xfs_buf_verify_cksum(bp, XFS_BTREE_SBLOCK_CRC_OFF);
+       }
 
        return true;
 }
@@ -1000,7 +1015,7 @@ xfs_btree_init_block_int(
                if (flags & XFS_BTREE_CRC_BLOCKS) {
                        buf->bb_u.l.bb_blkno = cpu_to_be64(blkno);
                        buf->bb_u.l.bb_owner = cpu_to_be64(owner);
-                       uuid_copy(&buf->bb_u.l.bb_uuid, &mp->m_sb.sb_uuid);
+                       uuid_copy(&buf->bb_u.l.bb_uuid, &mp->m_sb.sb_meta_uuid);
                        buf->bb_u.l.bb_pad = 0;
                        buf->bb_u.l.bb_lsn = 0;
                }
@@ -1013,7 +1028,7 @@ xfs_btree_init_block_int(
                if (flags & XFS_BTREE_CRC_BLOCKS) {
                        buf->bb_u.s.bb_blkno = cpu_to_be64(blkno);
                        buf->bb_u.s.bb_owner = cpu_to_be32(__owner);
-                       uuid_copy(&buf->bb_u.s.bb_uuid, &mp->m_sb.sb_uuid);
+                       uuid_copy(&buf->bb_u.s.bb_uuid, &mp->m_sb.sb_meta_uuid);
                        buf->bb_u.s.bb_lsn = 0;
                }
        }