diff options
Diffstat (limited to 'tools/xenpaging/policy_default.c')
| -rw-r--r-- | tools/xenpaging/policy_default.c | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/tools/xenpaging/policy_default.c b/tools/xenpaging/policy_default.c index 0285d0dd8a..e555ed4e59 100644 --- a/tools/xenpaging/policy_default.c +++ b/tools/xenpaging/policy_default.c @@ -57,7 +57,7 @@ int policy_init(xenpaging_t *paging) if ( paging->policy_mru_size > 0 ) mru_size = paging->policy_mru_size; else - mru_size = DEFAULT_MRU_SIZE; + mru_size = paging->policy_mru_size = DEFAULT_MRU_SIZE; mru = malloc(sizeof(*mru) * mru_size); if ( mru == NULL ) @@ -120,17 +120,38 @@ void policy_notify_paged_out(unsigned long gfn) clear_bit(gfn, unconsumed); } -void policy_notify_paged_in(unsigned long gfn) +static void policy_handle_paged_in(unsigned long gfn, int do_mru) { unsigned long old_gfn = mru[i_mru & (mru_size - 1)]; if ( old_gfn != INVALID_MFN ) clear_bit(old_gfn, bitmap); - mru[i_mru & (mru_size - 1)] = gfn; + if (do_mru) { + mru[i_mru & (mru_size - 1)] = gfn; + } else { + clear_bit(gfn, bitmap); + mru[i_mru & (mru_size - 1)] = INVALID_MFN; + } + i_mru++; } +void policy_notify_paged_in(unsigned long gfn) +{ + policy_handle_paged_in(gfn, 1); +} + +void policy_notify_paged_in_nomru(unsigned long gfn) +{ + policy_handle_paged_in(gfn, 0); +} + +void policy_notify_dropped(unsigned long gfn) +{ + clear_bit(gfn, bitmap); +} + /* * Local variables: |