Commit 74ce002d authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds

fs/fs-writeback.c: restore lost comment

I had to go back to a 2.6.20 tree to work out why we're adding a
number-of-inodes into a number-of-pages count.  Restore the lost comment.

Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 16b56cf4
......@@ -721,6 +721,10 @@ static long wb_check_old_data_flush(struct bdi_writeback *wb)
return 0;
wb->last_old_flush = jiffies;
/*
* Add in the number of potentially dirty inodes, because each inode
* write can dirty pagecache in the underlying blockdev.
*/
nr_pages = global_page_state(NR_FILE_DIRTY) +
global_page_state(NR_UNSTABLE_NFS) +
(inodes_stat.nr_inodes - inodes_stat.nr_unused);
......
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