Daniel,
I haven't heard any update about my patch from you since early February. Is
there anything I need to do or is this good to go? I'm not too familiar
with actually submitting patches to mailing-list based development, so let
me know if everything is all set or I need to do something else.
Thanks,
Patrick
On Fri, Apr 26, 2024 at 9:00 PM Patrick Plenefisch <simonp...@gmail.com>
wrote:
> From 8cfb6dbb011d3773b90a3cbb8561616a2fb5955f Mon Sep 17 00:00:00 2001
> From: Patrick Plenefisch <simonp...@gmail.com>
> Date: Sun, 18 Feb 2024 18:36:05 -0500
> Subject: [PATCH 2/2] lvm: Add support for cachevol and integrity lv
>
> lv matching must be done after processing, as integrity
> volumes may have several levels that the segments must be
> shifted through
>
> pv matching must be completely finished before validating a
> volume, otherwise referenced raid stripes may not have pv
> data applied yet
>
> Signed-off-by: Patrick Plenefisch <simonp...@gmail.com>
> ---
> grub-core/disk/diskfilter.c | 6 ++-
> grub-core/disk/lvm.c | 83 +++++++++++++++++++++++--------------
> 2 files changed, 56 insertions(+), 33 deletions(-)
>
> diff --git a/grub-core/disk/diskfilter.c b/grub-core/disk/diskfilter.c
> index 21e239511..dc3bd943b 100644
> --- a/grub-core/disk/diskfilter.c
> +++ b/grub-core/disk/diskfilter.c
> @@ -966,8 +966,6 @@ grub_diskfilter_vg_register (struct grub_diskfilter_vg
> *vg)
>
> for (lv = vg->lvs; lv; lv = lv->next)
> {
> - grub_err_t err;
> -
> /* RAID 1 and single-disk RAID 0 don't use a chunksize but code
> assumes one so set one. */
> for (i = 0; i < lv->segment_count; i++)
> @@ -979,6 +977,10 @@ grub_diskfilter_vg_register (struct
> grub_diskfilter_vg *vg)
> && lv->segments[i].stripe_size == 0)
> lv->segments[i].stripe_size = 64;
> }
> + }
> + for (lv = vg->lvs; lv; lv = lv->next)
> + {
> + grub_err_t err;
>
> err = validate_lv(lv);
> if (err)
> diff --git a/grub-core/disk/lvm.c b/grub-core/disk/lvm.c
> index 10bc965a4..7615a507a 100644
> --- a/grub-core/disk/lvm.c
> +++ b/grub-core/disk/lvm.c
> @@ -805,13 +805,27 @@ grub_lvm_detect (grub_disk_t disk,
> seg->nodes[seg->node_count - 1].name = tmp;
> }
> }
> + /* Cache and integrity LVs have extra parts that
> + we can ignore for our read-only access */
> else if (grub_memcmp (p, "cache\"",
> - sizeof ("cache\"") - 1) == 0)
> + sizeof ("cache\"") - 1) == 0
> + || grub_memcmp (p, "cache+CACHE_USES_CACHEVOL\"",
> + sizeof ("cache+CACHE_USES_CACHEVOL\"") - 1) == 0
> + || grub_memcmp (p, "integrity\"",
> + sizeof ("integrity\"") - 1) == 0)
> {
> struct ignored_feature_lv *ignored_feature = NULL;
>
> char *p2, *p3;
> grub_size_t sz;
> +#ifdef GRUB_UTIL
> + p2 = grub_strchr (p, '"');
> + if (p2)
> + *p2 = 0;
> + grub_util_info ("Ignoring extra metadata type '%s' for %s", p,
> lv->name);
> + if (p2)
> + *p2 ='"';
> +#endif
>
> ignored_feature = grub_zalloc (sizeof (*ignored_feature));
> if (!ignored_feature)
> @@ -936,36 +950,6 @@ grub_lvm_detect (grub_disk_t disk,
> }
> }
>
> - /* Match lvs. */
> - {
> - struct grub_diskfilter_lv *lv1;
> - struct grub_diskfilter_lv *lv2;
> - for (lv1 = vg->lvs; lv1; lv1 = lv1->next)
> - for (i = 0; i < lv1->segment_count; i++)
> - for (j = 0; j < lv1->segments[i].node_count; j++)
> - {
> - if (vg->pvs)
> - for (pv = vg->pvs; pv; pv = pv->next)
> - {
> - if (! grub_strcmp (pv->name,
> - lv1->segments[i].nodes[j].name))
> - {
> - lv1->segments[i].nodes[j].pv = pv;
> - break;
> - }
> - }
> - if (lv1->segments[i].nodes[j].pv == NULL)
> - for (lv2 = vg->lvs; lv2; lv2 = lv2->next)
> - {
> - if (lv1 == lv2)
> - continue;
> - if (grub_strcmp (lv2->name,
> - lv1->segments[i].nodes[j].name) == 0)
> - lv1->segments[i].nodes[j].lv = lv2;
> - }
> - }
> -
> - }
>
> {
> struct ignored_feature_lv *ignored_feature;
> @@ -1014,9 +998,46 @@ grub_lvm_detect (grub_disk_t disk,
> ignored_feature->lv = NULL;
> }
> }
> + else
> + {
> +
> +#ifdef GRUB_UTIL
> + grub_util_info ("Couldn't find LVM part of ignored feature on
> %s", ignored_feature->origin);
> +#endif
> + }
> }
> }
>
> + /* Match lvs. Must be done after cache and integrity are found */
> + {
> + struct grub_diskfilter_lv *lv1;
> + struct grub_diskfilter_lv *lv2;
> + for (lv1 = vg->lvs; lv1; lv1 = lv1->next)
> + for (i = 0; i < lv1->segment_count; i++)
> + for (j = 0; j < lv1->segments[i].node_count; j++)
> + {
> + if (vg->pvs)
> + for (pv = vg->pvs; pv; pv = pv->next)
> + {
> + if (! grub_strcmp (pv->name,
> + lv1->segments[i].nodes[j].name))
> + {
> + lv1->segments[i].nodes[j].pv = pv;
> + break;
> + }
> + }
> + if (lv1->segments[i].nodes[j].pv == NULL)
> + for (lv2 = vg->lvs; lv2; lv2 = lv2->next)
> + {
> + if (lv1 == lv2)
> + continue;
> + if (grub_strcmp (lv2->name,
> + lv1->segments[i].nodes[j].name) == 0)
> + lv1->segments[i].nodes[j].lv = lv2;
> + }
> + }
> + }
> +
> grub_lvm_free_ignored_feature_lvs (ignored_feature_lvs);
> if (grub_diskfilter_vg_register (vg))
> goto fail4;
> --
> 2.39.2
>
_______________________________________________
Grub-devel mailing list
Grub-devel@gnu.org
https://lists.gnu.org/mailman/listinfo/grub-devel
