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| author | Eric Sandeen <sandeen@redhat.com> | 2008-02-08 04:22:12 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-08 09:22:44 -0800 |
| commit | 2dafe1c4d69345539735cca64250f2d4657bd057 (patch) | |
| tree | a156663f7963869b6f4d6cd4afcc141064fc0329 /fs/compat.c | |
| parent | ac2a659968f5318a180213f0409c2ea21f072820 (diff) | |
| download | op-kernel-dev-2dafe1c4d69345539735cca64250f2d4657bd057.zip op-kernel-dev-2dafe1c4d69345539735cca64250f2d4657bd057.tar.gz | |
reduce large do_mount stack usage with noinlines
do_mount() uses a whopping 616 bytes of stack on x86_64 in 2.6.24-mm1,
largely thanks to gcc inlining the various helper functions.
noinlining these can slim it down a lot; on my box this patch gets it down
to 168, which is mostly the struct nameidata nd; left on the stack.
These functions are called only as do_mount() helpers; none of them should
be in any path that would see a performance benefit from inlining...
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/compat.c')
0 files changed, 0 insertions, 0 deletions
