diff options
Diffstat (limited to 'mm/readahead.c')
| -rw-r--r-- | mm/readahead.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mm/readahead.c b/mm/readahead.c index 406756d34309..3a4b5d58eeb6 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -129,6 +129,9 @@ #include <linux/fadvise.h> #include <linux/sched/mm.h> +#define CREATE_TRACE_POINTS +#include <trace/events/readahead.h> + #include "internal.h" /* @@ -225,6 +228,8 @@ void page_cache_ra_unbounded(struct readahead_control *ractl, */ unsigned int nofs = memalloc_nofs_save(); + trace_page_cache_ra_unbounded(mapping->host, index, nr_to_read, + lookahead_size); filemap_invalidate_lock_shared(mapping); index = mapping_align_index(mapping, index); @@ -470,6 +475,7 @@ void page_cache_ra_order(struct readahead_control *ractl, gfp_t gfp = readahead_gfp_mask(mapping); unsigned int new_order = ra->order; + trace_page_cache_ra_order(mapping->host, start, ra); if (!mapping_large_folio_support(mapping)) { ra->order = 0; goto fallback; @@ -554,6 +560,7 @@ void page_cache_sync_ra(struct readahead_control *ractl, unsigned long max_pages, contig_count; pgoff_t prev_index, miss; + trace_page_cache_sync_ra(ractl->mapping->host, index, ra, req_count); /* * Even if readahead is disabled, issue this request as readahead * as we'll need it to satisfy the requested range. The forced @@ -638,6 +645,7 @@ void page_cache_async_ra(struct readahead_control *ractl, if (folio_test_writeback(folio)) return; + trace_page_cache_async_ra(ractl->mapping->host, index, ra, req_count); folio_clear_readahead(folio); if (blk_cgroup_congested()) |