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zfs_clone_range should return a descriptive error codes

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Return the more descriptive error codes instead of `EXDEV` when
the parameters don't match the requirements of the clone function.
Updated the comments in `brt.c` accordingly.
The first three errors are just invalid parameters, which zfs can
not handle.
The fourth error indicates that the block which should be cloned
is created and cloned or modified in the same transaction
group (`txg`).

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Rob Norris <rob.norris@klarasystems.com>
Signed-off-by: Kay Pedersen <mail@mkwg.de>
Closes #15148
This commit is contained in:
oromenahar
2023-08-08 18:37:06 +02:00
committed by Brian Behlendorf
parent 6bdc7259d1
commit 895cb689d3
4 changed files with 13 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/os/freebsd/zfs/zfs_vnops_os.c
+1 -1
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@@ -6290,7 +6290,7 @@ zfs_freebsd_copy_file_range(struct vop_copy_file_range_args *ap)
error = zfs_clone_range(VTOZ(invp), ap->a_inoffp, VTOZ(outvp),
ap->a_outoffp, &len, ap->a_outcred);
if (error == EXDEV || error == EOPNOTSUPP)
if (error == EXDEV || error == EINVAL || error == EOPNOTSUPP)
goto bad_locked_fallback;
*ap->a_lenp = (size_t)len;
out_locked: