diff options
Diffstat (limited to 'fs/proc/meminfo.c')
| -rw-r--r-- | fs/proc/meminfo.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c index 9155a5a0d3b9..5e5c443591ea 100644 --- a/fs/proc/meminfo.c +++ b/fs/proc/meminfo.c @@ -57,11 +57,8 @@ static int meminfo_proc_show(struct seq_file *m, void *v) /* * Estimate the amount of memory available for userspace allocations, * without causing swapping. - * - * Free memory cannot be taken below the low watermark, before the - * system starts swapping. */ - available = i.freeram - wmark_low; + available = i.freeram - totalreserve_pages; /* * Not all the page cache can be freed, otherwise the system will @@ -79,6 +76,13 @@ static int meminfo_proc_show(struct seq_file *m, void *v) available += global_page_state(NR_SLAB_RECLAIMABLE) - min(global_page_state(NR_SLAB_RECLAIMABLE) / 2, wmark_low); + /* + * Part of the kernel memory, which can be released under memory + * pressure. + */ + available += global_page_state(NR_INDIRECTLY_RECLAIMABLE_BYTES) >> + PAGE_SHIFT; + if (available < 0) available = 0; |