| commit | 73219d178051691a56d57184d8c7f6d0cbe3c5c1 | |
| author | Chris Wright <chrisw@osdl.org> | |
| Wed, 22 Jun 2005 00:14:52 +0000 (21 17:14 -0700) | ||
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | |
| Wed, 22 Jun 2005 01:46:16 +0000 (21 18:46 -0700) | ||
| tree | c527691510f5a2b757eac424c5671704084fc9eb | treesnapshot (tar.gz zip) |
| parent | 1363c3cd8603a913a27e2995dccbd70d5312d8e6 | commitdiff |
[PATCH] mmap topdown fix for large stack limit, large allocation
The topdown changes in 2.6.12-rc1 can cause large allocations with large
stack limit to fail, despite there being space available. The
mmap_base-len is only valid when len >= mmap_base. However, nothing in
topdown allocator checks this. It's only (now) caught at higher level,
which will cause allocation to simply fail. The following change restores
the fallback to bottom-up path, which will allow large allocations with
large stack limit to potentially still succeed.
Signed-off-by: Chris Wright <chrisw@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The topdown changes in 2.6.12-rc1 can cause large allocations with large
stack limit to fail, despite there being space available. The
mmap_base-len is only valid when len >= mmap_base. However, nothing in
topdown allocator checks this. It's only (now) caught at higher level,
which will cause allocation to simply fail. The following change restores
the fallback to bottom-up path, which will allow large allocations with
large stack limit to potentially still succeed.
Signed-off-by: Chris Wright <chrisw@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| mm/mmap.c | diffblobblamehistory |