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authorChristoph Hellwig <hch@lst.de>2020-09-24 08:51:39 +0200
committerJens Axboe <axboe@kernel.dk>2020-09-24 13:43:39 -0600
commit823423ef55f4d9c470b1edc9c5b5c93d06abfaae (patch)
treef85c2c04432ff06b9123cdc25269c136b10ddd80 /mm
parent1cb039f3dc1619eb795c54aad0a98fdb379b4237 (diff)
bdi: invert BDI_CAP_NO_ACCT_WB
Replace BDI_CAP_NO_ACCT_WB with a positive BDI_CAP_WRITEBACK_ACCT to make the checks more obvious. Also remove the pointless bdi_cap_account_writeback wrapper that just obsfucates the check. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'mm')
-rw-r--r--mm/backing-dev.c1
-rw-r--r--mm/page-writeback.c4
2 files changed, 3 insertions, 2 deletions
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 8e3802bf03a9..df18f0088dd3 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -745,6 +745,7 @@ struct backing_dev_info *bdi_alloc(int node_id)
kfree(bdi);
return NULL;
}
+ bdi->capabilities = BDI_CAP_WRITEBACK_ACCT;
bdi->ra_pages = VM_READAHEAD_PAGES;
bdi->io_pages = VM_READAHEAD_PAGES;
return bdi;
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index e9c36521461a..0139f9622a92 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -2738,7 +2738,7 @@ int test_clear_page_writeback(struct page *page)
if (ret) {
__xa_clear_mark(&mapping->i_pages, page_index(page),
PAGECACHE_TAG_WRITEBACK);
- if (bdi_cap_account_writeback(bdi)) {
+ if (bdi->capabilities & BDI_CAP_WRITEBACK_ACCT) {
struct bdi_writeback *wb = inode_to_wb(inode);
dec_wb_stat(wb, WB_WRITEBACK);
@@ -2791,7 +2791,7 @@ int __test_set_page_writeback(struct page *page, bool keep_write)
PAGECACHE_TAG_WRITEBACK);
xas_set_mark(&xas, PAGECACHE_TAG_WRITEBACK);
- if (bdi_cap_account_writeback(bdi))
+ if (bdi->capabilities & BDI_CAP_WRITEBACK_ACCT)
inc_wb_stat(inode_to_wb(inode), WB_WRITEBACK);
/*