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authorKawai, Hidehiro <hidehiro.kawai.ez@hitachi.com>2007-07-19 01:48:27 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-19 10:04:46 -0700
commit6c5d523826dc639df709ed0f88c5d2ce25379652 (patch)
treeef2fa8cb30266b3a9b047902794e78c583b099da /include/asm-ia64
parent76fdbb25f963de5dc1e308325f0578a2f92b1c2d (diff)
downloadop-kernel-dev-6c5d523826dc639df709ed0f88c5d2ce25379652.zip
op-kernel-dev-6c5d523826dc639df709ed0f88c5d2ce25379652.tar.gz
coredump masking: reimplementation of dumpable using two flags
This patch changes mm_struct.dumpable to a pair of bit flags. set_dumpable() converts three-value dumpable to two flags and stores it into lower two bits of mm_struct.flags instead of mm_struct.dumpable. get_dumpable() behaves in the opposite way. [akpm@linux-foundation.org: export set_dumpable] Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: David Howells <dhowells@redhat.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-ia64')
-rw-r--r--include/asm-ia64/processor.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/asm-ia64/processor.h b/include/asm-ia64/processor.h
index db81ba4..6251c764 100644
--- a/include/asm-ia64/processor.h
+++ b/include/asm-ia64/processor.h
@@ -295,9 +295,9 @@ struct thread_struct {
regs->ar_bspstore = current->thread.rbs_bot; \
regs->ar_fpsr = FPSR_DEFAULT; \
regs->loadrs = 0; \
- regs->r8 = current->mm->dumpable; /* set "don't zap registers" flag */ \
+ regs->r8 = get_dumpable(current->mm); /* set "don't zap registers" flag */ \
regs->r12 = new_sp - 16; /* allocate 16 byte scratch area */ \
- if (unlikely(!current->mm->dumpable)) { \
+ if (unlikely(!get_dumpable(current->mm))) { \
/* \
* Zap scratch regs to avoid leaking bits between processes with different \
* uid/privileges. \
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