summaryrefslogtreecommitdiffstats
path: root/security/commoncap.c
diff options
context:
space:
mode:
authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2010-04-02 09:11:29 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2010-04-04 12:06:02 -0700
commitd82ef020cf31504c816803b1def94eb5ff173363 (patch)
tree1aac1f2260b602d28804a809783076d68a06bb33 /security/commoncap.c
parent5e11611a5d22252f3f9c169a3c9377eac0c32033 (diff)
downloadtalos-obmc-linux-d82ef020cf31504c816803b1def94eb5ff173363.tar.gz
talos-obmc-linux-d82ef020cf31504c816803b1def94eb5ff173363.zip
proc: pagemap: Hold mmap_sem during page walk
In initial design, walk_page_range() was designed just for walking page table and it didn't require mmap_sem. Now, find_vma() etc.. are used in walk_page_range() and we need mmap_sem around it. This patch adds mmap_sem around walk_page_range(). Because /proc/<pid>/pagemap's callback routine use put_user(), we have to get rid of it to do sane fix. Changelog: 2010/Apr/2 - fixed start_vaddr and end overflow Changelog: 2010/Apr/1 - fixed start_vaddr calculation - removed unnecessary cast. - removed unnecessary change in smaps. - use GFP_TEMPORARY instead of GFP_KERNEL Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Matt Mackall <mpm@selenic.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: San Mehat <san@google.com> Cc: Brian Swetland <swetland@google.com> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> [ Fixed kmalloc failure return code as per Matt ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'security/commoncap.c')
0 files changed, 0 insertions, 0 deletions
OpenPOWER on IntegriCloud