aboutsummaryrefslogtreecommitdiff
path: root/include/linux/pci.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-28 17:54:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-28 17:54:21 -0700
commit9b79022ca909b66e2cd0cfd9248f832fc165f77f (patch)
treebcd8c3204886fcbc8422aeb482f8e42c0b5b6124 /include/linux/pci.h
parent34ee55014283a60efa3534c06e010579ffdd3756 (diff)
Fix 'get_user_pages_fast()' with non-page-aligned start address
Alexey Dobriyan reported trouble with LTP with the new fast-gup code, and Johannes Weiner debugged it to non-page-aligned addresses, where the new get_user_pages_fast() code would do all the wrong things, including just traversing past the end of the requested area due to 'addr' never matching 'end' exactly. This is not a pretty fix, and we may actually want to move the alignment into generic code, leaving just the core code per-arch, but Alexey verified that the vmsplice01 LTP test doesn't crash with this. Reported-and-tested-by: Alexey Dobriyan <adobriyan@gmail.com> Debugged-by: Johannes Weiner <hannes@saeurebad.de> Cc: Nick Piggin <npiggin@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/pci.h')
0 files changed, 0 insertions, 0 deletions