Reversing the check on XFS_IOC_ZERO_RANGE. Range should be zeroed if the start is less than or equal to the end. Signed-off-by: Andrew Dahl <adahl@xxxxxxx> --- Index: xfs/fs/xfs/xfs_vnodeops.c =================================================================== --- xfs.orig/fs/xfs/xfs_vnodeops.c +++ xfs/fs/xfs/xfs_vnodeops.c @@ -2188,7 +2188,7 @@ xfs_change_file_space( case XFS_IOC_ZERO_RANGE: prealloc_type |= XFS_BMAPI_CONVERT; end = round_down(startoffset + bf->l_len, PAGE_SIZE) - 1; - if (startoffset > end) + if (startoffset <= end) truncate_pagecache_range(VFS_I(ip), startoffset, end); /* FALLTHRU */ case XFS_IOC_RESVSP:
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