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| author | Andi Kleen | 2008-07-24 06:27:43 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2008-07-24 19:47:17 +0200 |
| commit | a137e1cc6d6e7d315fef03962a2a5a113348b13b (patch) | |
| tree | b47e195c392abaa3640cc2f9187d99d58cee664a /Documentation/ABI/testing/sysfs-kernel-mm-hugepages | |
| parent | hugetlb: multiple hstates for multiple page sizes (diff) | |
| download | kernel-qcow2-linux-a137e1cc6d6e7d315fef03962a2a5a113348b13b.tar.gz kernel-qcow2-linux-a137e1cc6d6e7d315fef03962a2a5a113348b13b.tar.xz kernel-qcow2-linux-a137e1cc6d6e7d315fef03962a2a5a113348b13b.zip | |
hugetlbfs: per mount huge page sizes
Add the ability to configure the hugetlb hstate used on a per mount basis.
- Add a new pagesize= option to the hugetlbfs mount that allows setting
the page size
- This option causes the mount code to find the hstate corresponding to the
specified size, and sets up a pointer to the hstate in the mount's
superblock.
- Change the hstate accessors to use this information rather than the
global_hstate they were using (requires a slight change in mm/memory.c
so we don't NULL deref in the error-unmap path -- see comments).
[np: take hstate out of hugetlbfs inode and vma->vm_private_data]
Acked-by: Adam Litke <agl@us.ibm.com>
Acked-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-kernel-mm-hugepages')
0 files changed, 0 insertions, 0 deletions