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authorThomas Tuttle <ttuttle@google.com>2008-06-06 18:41:41 +0000
committerChris Wright <chrisw@sous-sol.org>2008-06-09 11:27:05 -0700
commit3dac273cad59097a8ab335958a7c5904f0a99d65 (patch)
tree49e71ea48d969b8239c3298d9d0104cc95533fcb /security/inode.c
parent7acdaecd4c3d8ab57c13e04e0cfd892d84952e9c (diff)
downloadlinux-linaro-stable-3dac273cad59097a8ab335958a7c5904f0a99d65.tar.gz
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 'security/inode.c')
0 files changed, 0 insertions, 0 deletions