iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mm/writeback: Change __wb_writeout_inc() to __wb_writeout_add()

Browse Source 
Allow for accounting N pages at once instead of one page at a time.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: David Howells <dhowells@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
This commit is contained in:
Matthew Wilcox (Oracle) 2021-03-20 16:45:15 -04:00
parent be5f179752
commit cc24df4cd1
1 changed files with 11 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
mm/page-writeback.c
View File

@ -562,12 +562,12 @@ static unsigned long wp_next_time(unsigned long cur_time)
return cur_time; return cur_time;
} }
static void wb_domain_writeout_inc(struct wb_domain *dom, static void wb_domain_writeout_add(struct wb_domain *dom,
struct fprop_local_percpu *completions, struct fprop_local_percpu *completions,
unsigned int max_prop_frac) unsigned int max_prop_frac, long nr)
{ {
__fprop_add_percpu_max(&dom->completions, completions, __fprop_add_percpu_max(&dom->completions, completions,
max_prop_frac, 1); max_prop_frac, nr);
/* First event after period switching was turned off? */ /* First event after period switching was turned off? */
if (unlikely(!dom->period_time)) { if (unlikely(!dom->period_time)) {
/* /*
@ -585,18 +585,18 @@ static void wb_domain_writeout_inc(struct wb_domain *dom,
* Increment @wb's writeout completion count and the global writeout * Increment @wb's writeout completion count and the global writeout
* completion count. Called from test_clear_page_writeback(). * completion count. Called from test_clear_page_writeback().
*/ */
static inline void __wb_writeout_inc(struct bdi_writeback *wb) static inline void __wb_writeout_add(struct bdi_writeback *wb, long nr)
{ {
struct wb_domain *cgdom; struct wb_domain *cgdom;
inc_wb_stat(wb, WB_WRITTEN); wb_stat_mod(wb, WB_WRITTEN, nr);
wb_domain_writeout_inc(&global_wb_domain, &wb->completions, wb_domain_writeout_add(&global_wb_domain, &wb->completions,
wb->bdi->max_prop_frac); wb->bdi->max_prop_frac, nr);
cgdom = mem_cgroup_wb_domain(wb); cgdom = mem_cgroup_wb_domain(wb);
if (cgdom) if (cgdom)
wb_domain_writeout_inc(cgdom, wb_memcg_completions(wb), wb_domain_writeout_add(cgdom, wb_memcg_completions(wb),
wb->bdi->max_prop_frac); wb->bdi->max_prop_frac, nr);
} }
void wb_writeout_inc(struct bdi_writeback *wb) void wb_writeout_inc(struct bdi_writeback *wb)
@ -604,7 +604,7 @@ void wb_writeout_inc(struct bdi_writeback *wb)
unsigned long flags; unsigned long flags;
local_irq_save(flags); local_irq_save(flags);
__wb_writeout_inc(wb); __wb_writeout_add(wb, 1);
local_irq_restore(flags); local_irq_restore(flags);
} }
EXPORT_SYMBOL_GPL(wb_writeout_inc); EXPORT_SYMBOL_GPL(wb_writeout_inc);
@ -2786,7 +2786,7 @@ int test_clear_page_writeback(struct page *page)
struct bdi_writeback *wb = inode_to_wb(inode); struct bdi_writeback *wb = inode_to_wb(inode);
dec_wb_stat(wb, WB_WRITEBACK); dec_wb_stat(wb, WB_WRITEBACK);
__wb_writeout_inc(wb); __wb_writeout_add(wb, 1);
if (!mapping_tagged(mapping, if (!mapping_tagged(mapping,
PAGECACHE_TAG_WRITEBACK)) PAGECACHE_TAG_WRITEBACK))
wb_inode_writeback_end(wb); wb_inode_writeback_end(wb);