19 Feb, 2014

1 commit

• e3ebf0d45   block: Use macros from compiler.h instead of __attribute__((...)) ... Browse Code »

  To increase compiler portability there are several macros defined
  in for various gcc __attribute((..)) constructs.
  I've made sure gcc these specific were replaced with the right
  macro and an #include was placed where needed.

  Signed-off-by: Gideon Israel Dsouza
  Signed-off-by: Jens Axboe

  Gideon Israel Dsouza

  2014-02-19 04:20:01 +0800  

12 Sep, 2013

3 commits

• 08009b30a   partitions/efi: delete annoying emacs style comments ... Browse Code »

  I love emacs, but these settings for coding style are annoying when trying
  to open the efi.h file. More important, we already have checkpatch for
  that.

  Signed-off-by: Davidlohr Bueso
  Reviewed-by: Karel Zak
  Acked-by: Matt Fleming
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Davidlohr Bueso

  2013-09-12 06:59:18 +0800  
• b05ebbbbe   partitions/efi: detect hybrid MBRs ... Browse Code »

  One of the biggest problems with GPT is compatibility with older, non-GPT
  systems. The problem is addressed by creating hybrid mbrs, an extension,
  or variant, of the traditional protective mbr. This contains, apart from
  the 0xEE partition, up three additional primary partitions that point to
  the same space marked by up to three GPT partitions. The result is that
  legacy OSs can see the three required MBR partitions and at the same time
  ignore the GPT-aware partitions that protect the GPT structures.

  While hybrid MBRs are hacks, workarounds and simply not part of the GPT
  standard, they do exist and we have no way around them. For instance, by
  default, OSX creates a hybrid scheme when using multi-OS booting.

  In order for Linux to properly discover protective MBRs, it must be made
  aware of devices that have hybrid MBRs. No functionality is changed by
  this patch, just a debug message informing the user of the MBR scheme that
  is being used.

  [akpm@linux-foundation.org: coding-style fixes]
  Signed-off-by: Davidlohr Bueso
  Reviewed-by: Karel Zak
  Acked-by: Matt Fleming
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Davidlohr Bueso

  2013-09-12 06:59:16 +0800  
• c2ebdc243   partitions/efi: use lba-aware partition records ... Browse Code »

  The kernel's GPT implementation currently uses the generic 'struct
  partition' type for dealing with legacy MBR partition records. While this
  is is useful for disklabels that we designed for CHS addressing, such as
  msdos, it doesn't adapt well to newer standards that use LBA instead, such
  as GUID partition tables. Furthermore, these generic partition structures
  do not have all the required fields to properly follow the UEFI specs.

  While a CHS address can be translated to LBA, it's much simpler and
  cleaner to just replace the partition type. This patch adds a new
  'gpt_record' type that is fully compliant with EFI and will allow, in the
  next patches, to add more checks to properly verify a protective MBR,
  which is paramount to probing a device that makes use of GPT.

  [akpm@linux-foundation.org: coding-style fixes]
  Signed-off-by: Davidlohr Bueso
  Reviewed-by: Karel Zak
  Acked-by: Matt Fleming
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Davidlohr Bueso

  2013-09-12 06:59:15 +0800  

04 Jan, 2012

1 commit

• 9be96f3fd   move fs/partitions to block/ ... Browse Code »

  43

  Signed-off-by: Al Viro

  Al Viro

  2012-01-04 11:54:06 +0800