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zfs_vnops_os.c: Add support for the _PC_CLONE_BLKSIZE name #17645

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zfs_vnops_os.c: Add support for the _PC_CLONE_BLKSIZE name #17645

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18 changes: 18 additions & 0 deletions module/os/freebsd/zfs/zfs_vnops_os.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5727,6 +5727,9 @@ zfs_freebsd_pathconf(struct vop_pathconf_args *ap)
{
ulong_t val;
int error;
#ifdef _PC_CLONE_BLKSIZE
zfsvfs_t *zfsvfs;
#endif

error = zfs_pathconf(ap->a_vp, ap->a_name, &val,
curthread->td_ucred, NULL);
Expand Down Expand Up @@ -5772,6 +5775,21 @@ zfs_freebsd_pathconf(struct vop_pathconf_args *ap)
case _PC_HAS_HIDDENSYSTEM:
*ap->a_retval = 1;
return (0);
#endif
#ifdef _PC_CLONE_BLKSIZE
case _PC_CLONE_BLKSIZE:
zfsvfs = (zfsvfs_t *)ap->a_vp->v_mount->mnt_data;
if (zfs_bclone_enabled &&
spa_feature_is_enabled(dmu_objset_spa(zfsvfs->z_os),
SPA_FEATURE_BLOCK_CLONING))
*ap->a_retval = spa_feature_is_active(
dmu_objset_spa(zfsvfs->z_os),
SPA_FEATURE_LARGE_BLOCKS) ?
SPA_MAXBLOCKSIZE :
SPA_OLD_MAXBLOCKSIZE;
else
*ap->a_retval = 0;
return (0);
#endif
default:
return (vop_stdpathconf(ap));
Expand Down
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