xfs: hoist multi-fsb allocation unit detection to a helper

Replace the open-coded logic to decide if a file has a multi-fsb
allocation unit to a helper to make the code easier to read.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

1 files changed, 9 insertions, 0 deletions

diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index fa3e605901e2..f559e68ee707 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -312,6 +312,15 @@ static inline bool xfs_inode_has_large_extent_counts(struct xfs_inode *ip)
 }
 
 /*
+ * Decide if this file is a realtime file whose data allocation unit is larger
+ * than a single filesystem block.
+ */
+static inline bool xfs_inode_has_bigrtalloc(struct xfs_inode *ip)
+{
+	return XFS_IS_REALTIME_INODE(ip) && ip->i_mount->m_sb.sb_rextsize > 1;
+}
+
+/*
  * Return the buftarg used for data allocations on a given inode.
  */
 #define xfs_inode_buftarg(ip) \