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 <darrick.wong@xxxxxxxxxx>
---
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 f5effa6..b837ad8 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -883,7 +883,6 @@ 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,
@@ -894,14 +893,6 @@ 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)
--
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