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authorThomas Tuttle <ttuttle@google.com>2008-06-05 22:46:31 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-06-06 11:29:11 -0700
commitaae8679b0ebcaa92f99c1c3cb0cd651594a43915 (patch)
tree26d761d3c4cca09b58538a576948a7ba720f7d5a /fs/cramfs
parentd1ee2971f5bd8a16bc5ecfe1b00e14b4fe407c4f (diff)
pagemap: fix bug in add_to_pagemap, require aligned-length reads of /proc/pid/pagemap
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>
Diffstat (limited to 'fs/cramfs')
0 files changed, 0 insertions, 0 deletions