linux-toradex.git/block/partitions, branch v4.9.16

block: atari: Return early for unsupported sector size

2016-07-13T16:31:44+00:00

For 4K LBA or very large disks, atari_partition can easily get tricked
into thinking it has found an Atari partition table.  Depending on the
data in the disk, it ends up creating partitions with awkward lengths.

We saw logs like this while playing with fio.

[5.625867] nvme2n1: AHDI p2
[5.625872] nvme2n1: p2 size 2910030523 extends beyond EOD, truncated

People has had issues with misinterpreted AHDI partition tables for a long
time, see this BSD thread from 1995, for example.

https://mail-index.netbsd.org/port-atari/1995/11/19/0001.html

Since the atari partition, according to the spec, doesn't even support
sector sizes with more than 512, a quick sanity check is reasonable to
just bail out early, before even attempting to read sector 0.

Signed-off-by: Gabriel Krisman Bertazi 
Signed-off-by: Jens Axboe

block/partitions/ldm.c: use generic UUID library

2016-05-21T00:58:30+00:00

Instead of opencoding let's use generic UUID library functions here.

Signed-off-by: Andy Shevchenko 
Cc: "Richard Russon (FlatCap)" 
Cc: Jens Axboe 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

treewide: Fix typos in printk

2016-04-18T09:23:24+00:00

This patch fix spelling typos found in printk
within various part of the kernel sources.

Signed-off-by: Masanari Iida 
Acked-by: Randy Dunlap 
Signed-off-by: Jiri Kosina

mac: validate mac_partition is within sector

2015-11-20T15:49:28+00:00

If md->signature == MAC_DRIVER_MAGIC and md->block_size == 1023, a single
512 byte sector would be read (secsize / 512). However the partition
structure would be located past the end of the buffer (secsize % 512).

Signed-off-by: Kees Cook 
Cc: stable@vger.kernel.org
Signed-off-by: Jens Axboe

Merge branch 'for-3.20/core' of git://git.kernel.dk/linux-block

2015-02-12T22:13:23+00:00

Pull core block IO changes from Jens Axboe:
 "This contains:

   - A series from Christoph that cleans up and refactors various parts
     of the REQ_BLOCK_PC handling.  Contributions in that series from
     Dongsu Park and Kent Overstreet as well.

   - CFQ:
        - A bug fix for cfq for realtime IO scheduling from Jeff Moyer.
        - A stable patch fixing a potential crash in CFQ in OOM
          situations.  From Konstantin Khlebnikov.

   - blk-mq:
        - Add support for tag allocation policies, from Shaohua. This is
          a prep patch enabling libata (and other SCSI parts) to use the
          blk-mq tagging, instead of rolling their own.
        - Various little tweaks from Keith and Mike, in preparation for
          DM blk-mq support.
        - Minor little fixes or tweaks from me.
        - A double free error fix from Tony Battersby.

   - The partition 4k issue fixes from Matthew and Boaz.

   - Add support for zero+unprovision for blkdev_issue_zeroout() from
     Martin"

* 'for-3.20/core' of git://git.kernel.dk/linux-block: (27 commits)
  block: remove unused function blk_bio_map_sg
  block: handle the null_mapped flag correctly in blk_rq_map_user_iov
  blk-mq: fix double-free in error path
  block: prevent request-to-request merging with gaps if not allowed
  blk-mq: make blk_mq_run_queues() static
  dm: fix multipath regression due to initializing wrong request
  cfq-iosched: handle failure of cfq group allocation
  block: Quiesce zeroout wrapper
  block: rewrite and split __bio_copy_iov()
  block: merge __bio_map_user_iov into bio_map_user_iov
  block: merge __bio_map_kern into bio_map_kern
  block: pass iov_iter to the BLOCK_PC mapping functions
  block: add a helper to free bio bounce buffer pages
  block: use blk_rq_map_user_iov to implement blk_rq_map_user
  block: simplify bio_map_kern
  block: mark blk-mq devices as stackable
  block: keep established cmd_flags when cloning into a blk-mq request
  block: add blk-mq support to blk_insert_cloned_request()
  block: require blk_rq_prep_clone() be given an initialized clone request
  blk-mq: add tag allocation policy
  ...

block: Remove annoying "unknown partition table" message

2015-01-22T15:03:52+00:00

As Christoph put it:
  Can we just get rid of the warnings?  It's fairly annoying as devices
  without partitions are perfectly fine and very useful.

Me too I see this message every VM boot for ages on all my
devices. Would love to just remove it. For me a partition-table
is only needed for a booting BIOS, grub, and stuff.

CC: Christoph Hellwig 
Signed-off-by: Boaz Harrosh 
Signed-off-by: Jens Axboe

efi: Rename efi_guid_unparse to efi_guid_to_str

2015-01-08T03:07:44+00:00

Call it what it does - "unparse" is plain-misleading.

Signed-off-by: Borislav Petkov 
Signed-off-by: Ricardo Neri

block: Replace strnicmp with strncasecmp

2014-09-27T22:48:55+00:00

The kernel used to contain two functions for length-delimited,
case-insensitive string comparison, strnicmp with correct semantics
and a slightly buggy strncasecmp. The latter is the POSIX name, so
strnicmp was renamed to strncasecmp, and strnicmp made into a wrapper
for the new strncasecmp to avoid breaking existing users.

To allow the compat wrapper strnicmp to be removed at some point in
the future, and to avoid the extra indirection cost, do
s/strnicmp/strncasecmp/g.

Cc: Jens Axboe 
Signed-off-by: Rasmus Villemoes 
Signed-off-by: Jens Axboe

partitions: aix.c: off by one bug

2014-08-05T19:13:24+00:00

The lvip[] array has "state->limit" elements so the condition here
should be >= instead of >.

Fixes: 6ceea22bbbc8 ('partitions: add aix lvm partition support files')
Signed-off-by: Dan Carpenter 
Acked-by: Philippe De Muyter 
Signed-off-by: Jens Axboe

block/partitions/efi.c: kerneldoc fixing

2014-07-01T16:40:05+00:00

Adding function documentation and fixing kerneldoc warnings
('field: description' uniformization).

Cc: Davidlohr Bueso 
Cc: Jens Axboe 
Signed-off-by: Fabian Frederick 
Signed-off-by: Jens Axboe