From: Jan Kara <jack@xxxxxxx> Subject: ceph: use pagevec_lookup_range_tag() We want only pages from given range in ceph_writepages_start(). Use pagevec_lookup_range_tag() instead of pagevec_lookup_tag() and remove unnecessary code. Link: http://lkml.kernel.org/r/20171009151359.31984-4-jack@xxxxxxx Signed-off-by: Jan Kara <jack@xxxxxxx> Reviewed-by: Daniel Jordan <daniel.m.jordan@xxxxxxxxxx> Reviewed-by: "Yan, Zheng" <zyan@xxxxxxxxxx> Cc: Ilya Dryomov <idryomov@xxxxxxxxx> Cc: "Yan, Zheng" <zyan@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/ceph/addr.c | 19 +++---------------- 1 file changed, 3 insertions(+), 16 deletions(-) diff -puN fs/ceph/addr.c~ceph-use-pagevec_lookup_range_tag fs/ceph/addr.c --- a/fs/ceph/addr.c~ceph-use-pagevec_lookup_range_tag +++ a/fs/ceph/addr.c @@ -872,13 +872,10 @@ retry: get_more_pages: pvec_pages = min_t(unsigned, PAGEVEC_SIZE, max_pages - locked_pages); - if (end - index < (u64)(pvec_pages - 1)) - pvec_pages = (unsigned)(end - index) + 1; - - pvec_pages = pagevec_lookup_tag(&pvec, mapping, &index, - PAGECACHE_TAG_DIRTY, + pvec_pages = pagevec_lookup_range_tag(&pvec, mapping, &index, + end, PAGECACHE_TAG_DIRTY, pvec_pages); - dout("pagevec_lookup_tag got %d\n", pvec_pages); + dout("pagevec_lookup_range_tag got %d\n", pvec_pages); if (!pvec_pages && !locked_pages) break; for (i = 0; i < pvec_pages && locked_pages < max_pages; i++) { @@ -896,16 +893,6 @@ get_more_pages: unlock_page(page); continue; } - if (page->index > end) { - dout("end of range %p\n", page); - /* can't be range_cyclic (1st pass) because - * end == -1 in that case. */ - stop = true; - if (ceph_wbc.head_snapc) - done = true; - unlock_page(page); - break; - } if (strip_unit_end && (page->index > strip_unit_end)) { dout("end of strip unit %p\n", page); unlock_page(page); _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
