diff options
| author | Thomas Tuttle <ttuttle@google.com> | 2008-06-06 18:41:41 +0000 |
|---|---|---|
| committer | Chris Wright <chrisw@sous-sol.org> | 2008-06-09 11:27:05 -0700 |
| commit | 3dac273cad59097a8ab335958a7c5904f0a99d65 (patch) | |
| tree | 49e71ea48d969b8239c3298d9d0104cc95533fcb /mm | |
| parent | 7acdaecd4c3d8ab57c13e04e0cfd892d84952e9c (diff) | |
pagemap: fix bug in add_to_pagemap, require aligned-length reads of /proc/pid/pagemap
upstream commit: aae8679b0ebcaa92f99c1c3cb0cd651594a43915
Fix a bug in add_to_pagemap. Previously, since pm->out was a char *,
put_user was only copying 1 byte of every PFN, resulting in the top 7
bytes of each PFN not being copied. By requiring that reads be a multiple
of 8 bytes, I can make pm->out and pm->end u64*s instead of char*s, which
makes put_user work properly, and also simplifies the logic in
add_to_pagemap a bit.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Thomas Tuttle <ttuttle@google.com>
Cc: Matt Mackall <mpm@selenic.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions