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| author | Dave Hansen <dave@linux.vnet.ibm.com> | 2011-09-20 15:19:41 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-10-03 11:40:38 -0700 |
| commit | e2d598ab82b589fc40c4656a10004e328a90b6dd (patch) | |
| tree | e6c40037e63411716b41b07c962cdd2c8b11d621 /fs/char_dev.c | |
| parent | b879781180172696903fac604ba44c3204e0c1e4 (diff) | |
| download | lwn-e2d598ab82b589fc40c4656a10004e328a90b6dd.tar.gz lwn-e2d598ab82b589fc40c4656a10004e328a90b6dd.zip | |
teach /proc/$pid/numa_maps about transparent hugepages
commit 32ef43848f283e0ef945d3c67e851c143fea3970 upstream.
This is modeled after the smaps code.
It detects transparent hugepages and then does a single gather_stats()
for the page as a whole. This has two benifits:
1. It is more efficient since it does many pages in a single shot.
2. It does not have to break down the huge page.
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Acked-by: Hugh Dickins <hughd@google.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/char_dev.c')
0 files changed, 0 insertions, 0 deletions