[LU-1402] cfs_alloc_flags_to_gfp should translate CFS_ALLOC_HIGH to __GFP_HIGHMEM instead of __GFP_HIGH

Related — Sat, 16 Jun 2012 17:39:34 +0000

According to the comment above CFS_ALLOC_HIGH, the flag allows allocator to return memory in the highmen zone:
/* allow to return page beyond KVM. It has to be mapped into KVM by

cfs_page_map(); */

But cfs_alloc_flags_to_gfp() converts it to __GFP_HIGH, which according to kernel header:
#define __GFP_HIGH 0x20 /* Should access emergency pools? */

I think __GFP_HIGHMEM should be used instead. Also it makes sense to rename CFS_ALLOC_HIGH to CFS_ALLOC_HIGHMEM to avoid further confusion.

Whamcloud Community JIRA

[LU-1402] cfs_alloc_flags_to_gfp should translate CFS_ALLOC_HIGH to __GFP_HIGHMEM instead of __GFP_HIGH