From 1bb33a98702d8360947f18a44349df75ba555d5d Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Mon, 5 Dec 2016 12:38:57 +1100 Subject: [PATCH] xfs: don't cap maximum dedupe request length After various discussions on linux-fsdevel, it has been decided that it is not necessary to cap the length of a dedupe request, and that correctly-written userspace client programs will be able to absorb the change. Therefore, remove the length clamping behavior. Signed-off-by: Darrick J. Wong Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner --- fs/xfs/xfs_file.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 6e4f7f900fea..9a5d64b5f35a 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -939,7 +939,6 @@ xfs_file_clone_range( len, false); } -#define XFS_MAX_DEDUPE_LEN (16 * 1024 * 1024) STATIC ssize_t xfs_file_dedupe_range( struct file *src_file, @@ -950,14 +949,6 @@ xfs_file_dedupe_range( { int error; - /* - * Limit the total length we will dedupe for each operation. - * This is intended to bound the total time spent in this - * ioctl to something sane. - */ - if (len > XFS_MAX_DEDUPE_LEN) - len = XFS_MAX_DEDUPE_LEN; - error = xfs_reflink_remap_range(src_file, loff, dst_file, dst_loff, len, true); if (error)