diff options
| author | Chris Dearman <chris@mips.com> | 2008-04-28 02:12:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-28 08:58:19 -0700 |
| commit | 797df5749032c2286bc7ff3a52de41fde0cdf0a5 (patch) | |
| tree | 38ebb9f0672c6eeab3269cc875f22422fa2c908b /mm/swapfile.c | |
| parent | 19770b32609b6bf97a3dece2529089494cbfc549 (diff) | |
| download | lwn-797df5749032c2286bc7ff3a52de41fde0cdf0a5.tar.gz lwn-797df5749032c2286bc7ff3a52de41fde0cdf0a5.zip | |
mm: try both endianess when checking for endianess
When checking for the swap header try byteswapping the endianess dependent
fields to allow the swap partition to be shared between big & little endian
systems.
Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/swapfile.c')
| -rw-r--r-- | mm/swapfile.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index 2da149cfc9ac..67051be7083a 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -1582,6 +1582,14 @@ asmlinkage long sys_swapon(const char __user * specialfile, int swap_flags) error = -EINVAL; goto bad_swap; case 2: + /* swap partition endianess hack... */ + if (swab32(swap_header->info.version) == 1) { + swab32s(&swap_header->info.version); + swab32s(&swap_header->info.last_page); + swab32s(&swap_header->info.nr_badpages); + for (i = 0; i < swap_header->info.nr_badpages; i++) + swab32s(&swap_header->info.badpages[i]); + } /* Check the swap header's sub-version and the size of the swap file and bad block lists */ if (swap_header->info.version != 1) { |