xfs: remove the special COW fork handling in xfs_bmapi_read (1a1c57b2) · Commits · 戴 / test

We don't call xfs_bmapi_read for the COW fork anymore, so remove the special casing. Signed-off-by:

fs/xfs/libxfs/xfs_bmap.c

+1 −12

Original line number	Diff line number	Diff line
		@@ -3902,8 +3902,7 @@ xfs_bmapi_read(
		int whichfork = xfs_bmapi_whichfork(flags);

		ASSERT(*nmap >= 1);
		ASSERT(!(flags & ~(XFS_BMAPI_ATTRFORK\|XFS_BMAPI_ENTIRE\|
		XFS_BMAPI_COWFORK)));
		ASSERT(!(flags & ~(XFS_BMAPI_ATTRFORK \| XFS_BMAPI_ENTIRE)));
		ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED\|XFS_ILOCK_EXCL));

		if (XFS_IS_CORRUPT(mp, !xfs_ifork_has_extents(ip, whichfork)) \|\|
		@@ -3918,16 +3917,6 @@ xfs_bmapi_read(

		ifp = XFS_IFORK_PTR(ip, whichfork);
		if (!ifp) {
		/* No CoW fork? Return a hole. */
		if (whichfork == XFS_COW_FORK) {
		mval->br_startoff = bno;
		mval->br_startblock = HOLESTARTBLOCK;
		mval->br_blockcount = len;
		mval->br_state = XFS_EXT_NORM;
		*nmap = 1;
		return 0;
		}

		/*
		* A missing attr ifork implies that the inode says we're in
		* extents or btree format but failed to pass the inode fork