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Diffstat (limited to 'Documentation/vm/hugetlbpage.txt')
| -rw-r--r-- | Documentation/vm/hugetlbpage.txt | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/Documentation/vm/hugetlbpage.txt b/Documentation/vm/hugetlbpage.txt index f962d01bea2a..3102b81bef88 100644 --- a/Documentation/vm/hugetlbpage.txt +++ b/Documentation/vm/hugetlbpage.txt | |||
| @@ -88,10 +88,9 @@ hugepages from the buddy allocator, if the normal pool is exhausted. As | |||
| 88 | these surplus hugepages go out of use, they are freed back to the buddy | 88 | these surplus hugepages go out of use, they are freed back to the buddy |
| 89 | allocator. | 89 | allocator. |
| 90 | 90 | ||
| 91 | Caveat: Shrinking the pool via nr_hugepages while a surplus is in effect | 91 | Caveat: Shrinking the pool via nr_hugepages such that it becomes less |
| 92 | will allow the number of surplus huge pages to exceed the overcommit | 92 | than the number of hugepages in use will convert the balance to surplus |
| 93 | value, as the pool hugepages (which must have been in use for a surplus | 93 | huge pages even if it would exceed the overcommit value. As long as |
| 94 | hugepages to be allocated) will become surplus hugepages. As long as | ||
| 95 | this condition holds, however, no more surplus huge pages will be | 94 | this condition holds, however, no more surplus huge pages will be |
| 96 | allowed on the system until one of the two sysctls are increased | 95 | allowed on the system until one of the two sysctls are increased |
| 97 | sufficiently, or the surplus huge pages go out of use and are freed. | 96 | sufficiently, or the surplus huge pages go out of use and are freed. |