diff options
| author | Dave Hansen <[email protected]> | 2011-03-22 16:33:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2011-03-22 17:44:04 -0700 |
| commit | 4031a219d8913da40ade5a6e5b538cc61e975cc8 (patch) | |
| tree | ead7acfa743ef31f5be6dc9cae1fc70cefd72bf0 | |
| parent | 22e057c5923e60debad318cbeaee33033b110bc8 (diff) | |
smaps: have smaps show transparent huge pages
Now that the mere act of _looking_ at /proc/$pid/smaps will not destroy
transparent huge pages, tell how much of the VMA is actually mapped with
them.
This way, we can make sure that we're getting THPs where we
expect to see them.
Signed-off-by: Dave Hansen <[email protected]>
Acked-by: Mel Gorman <[email protected]>
Acked-by: David Rientjes <[email protected]>
Reviewed-by: Eric B Munson <[email protected]>
Tested-by: Eric B Munson <[email protected]>
Cc: Michael J Wolf <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Matt Mackall <[email protected]>
Cc: Jeremy Fitzhardinge <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | fs/proc/task_mmu.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 26f9cc00102c..93381aae9363 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -331,6 +331,7 @@ struct mem_size_stats { unsigned long private_dirty; unsigned long referenced; unsigned long anonymous; + unsigned long anonymous_thp; unsigned long swap; u64 pss; }; @@ -396,6 +397,7 @@ static int smaps_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end, smaps_pte_entry(*(pte_t *)pmd, addr, HPAGE_PMD_SIZE, walk); spin_unlock(&walk->mm->page_table_lock); + mss->anonymous_thp += HPAGE_PMD_SIZE; return 0; } } else { @@ -444,6 +446,7 @@ static int show_smap(struct seq_file *m, void *v) "Private_Dirty: %8lu kB\n" "Referenced: %8lu kB\n" "Anonymous: %8lu kB\n" + "AnonHugePages: %8lu kB\n" "Swap: %8lu kB\n" "KernelPageSize: %8lu kB\n" "MMUPageSize: %8lu kB\n" @@ -457,6 +460,7 @@ static int show_smap(struct seq_file *m, void *v) mss.private_dirty >> 10, mss.referenced >> 10, mss.anonymous >> 10, + mss.anonymous_thp >> 10, mss.swap >> 10, vma_kernel_pagesize(vma) >> 10, vma_mmu_pagesize(vma) >> 10, |