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authorEric Sandeen <sandeen@sandeen.net>2017-01-28 10:16:39 +0300
committerDarrick J. Wong <darrick.wong@oracle.com>2017-01-31 03:32:24 +0300
commitb6f41e448277ff080fea734b93121e6cd7513f0c (patch)
tree836dd90f7b2d3d412eb5782e1b1fc463e9d9fd4c /fs/xfs/libxfs/xfs_btree.c
parentaf7d20fd83d9e2b3111a847e4220bf943e2d531c (diff)
downloadlinux-b6f41e448277ff080fea734b93121e6cd7513f0c.tar.xz
xfs: remove boilerplate around xfs_btree_init_block
Now that xfs_btree_init_block_int is able to determine crc status from the passed-in mp, we can determine the proper magic as well if we are given a btree number, rather than an explicit magic value. Change xfs_btree_init_block[_int] callers to pass in the btree number, and let xfs_btree_init_block_int use the xfs_magics array via the xfs_btree_magic macro to determine which magic value is needed. This makes all of the if (crc) / else stanzas identical, and the if/else can be removed, leading to a single, common init_block call. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/libxfs/xfs_btree.c')
-rw-r--r--fs/xfs/libxfs/xfs_btree.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c
index 18afab315445..421efa0ef778 100644
--- a/fs/xfs/libxfs/xfs_btree.c
+++ b/fs/xfs/libxfs/xfs_btree.c
@@ -1100,13 +1100,14 @@ xfs_btree_init_block_int(
struct xfs_mount *mp,
struct xfs_btree_block *buf,
xfs_daddr_t blkno,
- __u32 magic,
+ xfs_btnum_t btnum,
__u16 level,
__u16 numrecs,
__u64 owner,
unsigned int flags)
{
int crc = xfs_sb_version_hascrc(&mp->m_sb);
+ __u32 magic = xfs_btree_magic(crc, btnum);
buf->bb_magic = cpu_to_be32(magic);
buf->bb_level = cpu_to_be16(level);
@@ -1141,14 +1142,14 @@ void
xfs_btree_init_block(
struct xfs_mount *mp,
struct xfs_buf *bp,
- __u32 magic,
+ xfs_btnum_t btnum,
__u16 level,
__u16 numrecs,
__u64 owner,
unsigned int flags)
{
xfs_btree_init_block_int(mp, XFS_BUF_TO_BLOCK(bp), bp->b_bn,
- magic, level, numrecs, owner, flags);
+ btnum, level, numrecs, owner, flags);
}
STATIC void
@@ -1159,8 +1160,6 @@ xfs_btree_init_block_cur(
int numrecs)
{
__u64 owner;
- int crc = xfs_sb_version_hascrc(&cur->bc_mp->m_sb);
- xfs_btnum_t btnum = cur->bc_btnum;
/*
* we can pull the owner from the cursor right now as the different
@@ -1174,7 +1173,7 @@ xfs_btree_init_block_cur(
owner = cur->bc_private.a.agno;
xfs_btree_init_block_int(cur->bc_mp, XFS_BUF_TO_BLOCK(bp), bp->b_bn,
- xfs_btree_magic(crc, btnum), level, numrecs,
+ cur->bc_btnum, level, numrecs,
owner, cur->bc_flags);
}