xfs
[Top] [All Lists]

[PATCH 09/13] libxfs: add helper for updating checksums on xfs_bufs

To: xfs@xxxxxxxxxxx
Subject: [PATCH 09/13] libxfs: add helper for updating checksums on xfs_bufs
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Tue, 4 Mar 2014 19:51:53 +1100
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <1393923117-9559-1-git-send-email-david@xxxxxxxxxxxxx>
References: <1393923117-9559-1-git-send-email-david@xxxxxxxxxxxxx>
From: Dave Chinner <dchinner@xxxxxxxxxx>

[userspace port]

Many/most callers of xfs_update_cksum() pass bp->b_addr and
BBTOB(bp->b_length) as the first 2 args.  Add a helper
which can just accept the bp and the crc offset, and work
it out on its own, for brevity.

Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
---
 include/libxfs.h            | 7 +++++++
 libxfs/xfs_alloc.c          | 4 ++--
 libxfs/xfs_attr_leaf.c      | 2 +-
 libxfs/xfs_btree.c          | 6 ++----
 libxfs/xfs_da_btree.c       | 2 +-
 libxfs/xfs_dir2_block.c     | 2 +-
 libxfs/xfs_dir2_data.c      | 2 +-
 libxfs/xfs_dir2_leaf.c      | 2 +-
 libxfs/xfs_dir2_node.c      | 2 +-
 libxfs/xfs_ialloc.c         | 2 +-
 libxfs/xfs_sb.c             | 2 +-
 libxfs/xfs_symlink_remote.c | 2 +-
 12 files changed, 20 insertions(+), 15 deletions(-)

diff --git a/include/libxfs.h b/include/libxfs.h
index 610e7d5..7500903 100644
--- a/include/libxfs.h
+++ b/include/libxfs.h
@@ -786,6 +786,13 @@ xfs_buf_verify_cksum(struct xfs_buf *bp, unsigned long 
cksum_offset)
                                cksum_offset);
 }
 
+static inline void
+xfs_buf_update_cksum(struct xfs_buf *bp, unsigned long cksum_offset)
+{
+       xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length),
+                        cksum_offset);
+}
+
 #define xfs_notice(mp,fmt,args...)             cmn_err(CE_NOTE,fmt, ## args)
 #define xfs_warn(mp,fmt,args...)               cmn_err(CE_WARN,fmt, ## args)
 #define xfs_alert(mp,fmt,args...)              cmn_err(CE_ALERT,fmt, ## args)
diff --git a/libxfs/xfs_alloc.c b/libxfs/xfs_alloc.c
index 2f6a241..dca612b 100644
--- a/libxfs/xfs_alloc.c
+++ b/libxfs/xfs_alloc.c
@@ -493,7 +493,7 @@ xfs_agfl_write_verify(
        if (bip)
                XFS_BUF_TO_AGFL(bp)->agfl_lsn = 
cpu_to_be64(bip->bli_item.li_lsn);
 
-       xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), XFS_AGFL_CRC_OFF);
+       xfs_buf_update_cksum(bp, XFS_AGFL_CRC_OFF);
 }
 
 const struct xfs_buf_ops xfs_agfl_buf_ops = {
@@ -2249,7 +2249,7 @@ xfs_agf_write_verify(
        if (bip)
                XFS_BUF_TO_AGF(bp)->agf_lsn = cpu_to_be64(bip->bli_item.li_lsn);
 
-       xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), XFS_AGF_CRC_OFF);
+       xfs_buf_update_cksum(bp, XFS_AGF_CRC_OFF);
 }
 
 const struct xfs_buf_ops xfs_agf_buf_ops = {
diff --git a/libxfs/xfs_attr_leaf.c b/libxfs/xfs_attr_leaf.c
index 0bd3169..90937d6 100644
--- a/libxfs/xfs_attr_leaf.c
+++ b/libxfs/xfs_attr_leaf.c
@@ -198,7 +198,7 @@ xfs_attr3_leaf_write_verify(
        if (bip)
                hdr3->info.lsn = cpu_to_be64(bip->bli_item.li_lsn);
 
-       xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), 
XFS_ATTR3_LEAF_CRC_OFF);
+       xfs_buf_update_cksum(bp, XFS_ATTR3_LEAF_CRC_OFF);
 }
 
 /*
diff --git a/libxfs/xfs_btree.c b/libxfs/xfs_btree.c
index fffed0a..9be4abd 100644
--- a/libxfs/xfs_btree.c
+++ b/libxfs/xfs_btree.c
@@ -218,8 +218,7 @@ xfs_btree_lblock_calc_crc(
                return;
        if (bip)
                block->bb_u.l.bb_lsn = cpu_to_be64(bip->bli_item.li_lsn);
-       xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length),
-                        XFS_BTREE_LBLOCK_CRC_OFF);
+       xfs_buf_update_cksum(bp, XFS_BTREE_LBLOCK_CRC_OFF);
 }
 
 bool
@@ -251,8 +250,7 @@ xfs_btree_sblock_calc_crc(
                return;
        if (bip)
                block->bb_u.s.bb_lsn = cpu_to_be64(bip->bli_item.li_lsn);
-       xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length),
-                        XFS_BTREE_SBLOCK_CRC_OFF);
+       xfs_buf_update_cksum(bp, XFS_BTREE_SBLOCK_CRC_OFF);
 }
 
 bool
diff --git a/libxfs/xfs_da_btree.c b/libxfs/xfs_da_btree.c
index 4e8b41a..0c0c5e0 100644
--- a/libxfs/xfs_da_btree.c
+++ b/libxfs/xfs_da_btree.c
@@ -220,7 +220,7 @@ xfs_da3_node_write_verify(
        if (bip)
                hdr3->info.lsn = cpu_to_be64(bip->bli_item.li_lsn);
 
-       xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), XFS_DA3_NODE_CRC_OFF);
+       xfs_buf_update_cksum(bp, XFS_DA3_NODE_CRC_OFF);
 }
 
 /*
diff --git a/libxfs/xfs_dir2_block.c b/libxfs/xfs_dir2_block.c
index 13561c3..3fe10ea 100644
--- a/libxfs/xfs_dir2_block.c
+++ b/libxfs/xfs_dir2_block.c
@@ -98,7 +98,7 @@ xfs_dir3_block_write_verify(
        if (bip)
                hdr3->lsn = cpu_to_be64(bip->bli_item.li_lsn);
 
-       xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), 
XFS_DIR3_DATA_CRC_OFF);
+       xfs_buf_update_cksum(bp, XFS_DIR3_DATA_CRC_OFF);
 }
 
 const struct xfs_buf_ops xfs_dir3_block_buf_ops = {
diff --git a/libxfs/xfs_dir2_data.c b/libxfs/xfs_dir2_data.c
index 2a0de28..bcb4c7f 100644
--- a/libxfs/xfs_dir2_data.c
+++ b/libxfs/xfs_dir2_data.c
@@ -262,7 +262,7 @@ xfs_dir3_data_write_verify(
        if (bip)
                hdr3->lsn = cpu_to_be64(bip->bli_item.li_lsn);
 
-       xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), 
XFS_DIR3_DATA_CRC_OFF);
+       xfs_buf_update_cksum(bp, XFS_DIR3_DATA_CRC_OFF);
 }
 
 const struct xfs_buf_ops xfs_dir3_data_buf_ops = {
diff --git a/libxfs/xfs_dir2_leaf.c b/libxfs/xfs_dir2_leaf.c
index 0fa147f..710f005 100644
--- a/libxfs/xfs_dir2_leaf.c
+++ b/libxfs/xfs_dir2_leaf.c
@@ -235,7 +235,7 @@ __write_verify(
        if (bip)
                hdr3->info.lsn = cpu_to_be64(bip->bli_item.li_lsn);
 
-       xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), 
XFS_DIR3_LEAF_CRC_OFF);
+       xfs_buf_update_cksum(bp, XFS_DIR3_LEAF_CRC_OFF);
 }
 
 static void
diff --git a/libxfs/xfs_dir2_node.c b/libxfs/xfs_dir2_node.c
index 78c77ed..f4260ea 100644
--- a/libxfs/xfs_dir2_node.c
+++ b/libxfs/xfs_dir2_node.c
@@ -126,7 +126,7 @@ xfs_dir3_free_write_verify(
        if (bip)
                hdr3->lsn = cpu_to_be64(bip->bli_item.li_lsn);
 
-       xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), 
XFS_DIR3_FREE_CRC_OFF);
+       xfs_buf_update_cksum(bp, XFS_DIR3_FREE_CRC_OFF);
 }
 
 const struct xfs_buf_ops xfs_dir3_free_buf_ops = {
diff --git a/libxfs/xfs_ialloc.c b/libxfs/xfs_ialloc.c
index 21683b5..b1382d6 100644
--- a/libxfs/xfs_ialloc.c
+++ b/libxfs/xfs_ialloc.c
@@ -1583,7 +1583,7 @@ xfs_agi_write_verify(
 
        if (bip)
                XFS_BUF_TO_AGI(bp)->agi_lsn = cpu_to_be64(bip->bli_item.li_lsn);
-       xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), XFS_AGI_CRC_OFF);
+       xfs_buf_update_cksum(bp, XFS_AGI_CRC_OFF);
 }
 
 const struct xfs_buf_ops xfs_agi_buf_ops = {
diff --git a/libxfs/xfs_sb.c b/libxfs/xfs_sb.c
index 43fdb59..db267c2 100644
--- a/libxfs/xfs_sb.c
+++ b/libxfs/xfs_sb.c
@@ -628,7 +628,7 @@ xfs_sb_write_verify(
        if (bip)
                XFS_BUF_TO_SBP(bp)->sb_lsn = cpu_to_be64(bip->bli_item.li_lsn);
 
-       xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), XFS_SB_CRC_OFF);
+       xfs_buf_update_cksum(bp, XFS_SB_CRC_OFF);
 }
 
 const struct xfs_buf_ops xfs_sb_buf_ops = {
diff --git a/libxfs/xfs_symlink_remote.c b/libxfs/xfs_symlink_remote.c
index 716f8a3..b59bf14 100644
--- a/libxfs/xfs_symlink_remote.c
+++ b/libxfs/xfs_symlink_remote.c
@@ -144,7 +144,7 @@ xfs_symlink_write_verify(
                struct xfs_dsymlink_hdr *dsl = bp->b_addr;
                dsl->sl_lsn = cpu_to_be64(bip->bli_item.li_lsn);
        }
-       xfs_update_cksum(bp->b_addr, BBTOB(bp->b_length), XFS_SYMLINK_CRC_OFF);
+       xfs_buf_update_cksum(bp, XFS_SYMLINK_CRC_OFF);
 }
 
 const struct xfs_buf_ops xfs_symlink_buf_ops = {
-- 
1.9.0

<Prev in Thread] Current Thread [Next in Thread>