mail archive of the barebox mailing list
 help / color / mirror / Atom feed
From: Sascha Hauer <s.hauer@pengutronix.de>
To: BAREBOX <barebox@lists.infradead.org>
Cc: Sascha Hauer <sascha@saschahauer.de>
Subject: [PATCH 0/6] GPT: fixes around last_usable_lba
Date: Wed, 01 Jul 2026 11:27:33 +0200	[thread overview]
Message-ID: <20260701-gpt-size-fixes-v1-0-aec2e5641a19@pengutronix.de> (raw)

The last_usable_lba field in a GPT specifies just that: The last LBA we
are allowed to use for partitions. There are some bugs around that fixed
in this series:

- When creating partitions we never actually check against
  last_usable_lba, but instead the device end.
- When writing a disk image to a device the last_usable_lba is usually
  set to some value matching the image size. When writing the partition
  table later, adjust the value for the actual device size so that the
  full device becomes usable

Also some logging fixes/cleanups included

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
Sascha Hauer (6):
      partitions: gpt: Adjust last_usable_lba to real device size when writing
      partitions: gpt: refresh also when primary or alternate is invalid
      partitions: gpt: validate mkpart range against GPT usable LBAs
      partitions: check new partitions against usable LBAs, not device size
      partitions: gpt: fix wrong error messages
      partitions: gpt: log a message when partition table refreshed

 commands/parted.c       |  8 +-------
 common/partitions.c     | 28 +++++++++++++++++++-------
 common/partitions/efi.c | 53 +++++++++++++++++++++++++++++++++++--------------
 include/partitions.h    |  2 ++
 4 files changed, 62 insertions(+), 29 deletions(-)
---
base-commit: 18599acfcbf38e95edc605f89e257e32f67d0ac4
change-id: 20260701-gpt-size-fixes-fa23624e09b0

Best regards,
-- 
Sascha Hauer <s.hauer@pengutronix.de>




             reply	other threads:[~2026-07-01  9:29 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-01  9:27 Sascha Hauer [this message]
2026-07-01  9:27 ` [PATCH 1/6] partitions: gpt: Adjust last_usable_lba to real device size when writing Sascha Hauer
2026-07-01  9:27 ` [PATCH 2/6] partitions: gpt: refresh also when primary or alternate is invalid Sascha Hauer
2026-07-01  9:27 ` [PATCH 3/6] partitions: gpt: validate mkpart range against GPT usable LBAs Sascha Hauer
2026-07-01  9:27 ` [PATCH 4/6] partitions: check new partitions against usable LBAs, not device size Sascha Hauer
2026-07-01  9:27 ` [PATCH 5/6] partitions: gpt: fix wrong error messages Sascha Hauer
2026-07-01  9:27 ` [PATCH 6/6] partitions: gpt: log a message when partition table refreshed Sascha Hauer

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20260701-gpt-size-fixes-v1-0-aec2e5641a19@pengutronix.de \
    --to=s.hauer@pengutronix.de \
    --cc=barebox@lists.infradead.org \
    --cc=sascha@saschahauer.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox