| Message ID | 20220901220138.182896-19-vishal.moola@gmail.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Convert to filemap_get_folios_tag() | expand |
On Fri, Sep 2, 2022 at 7:07 AM Vishal Moola (Oracle) wrote: > > Convert function to use folios throughout. This is in preparation for > the removal of find_get_pages_range_tag(). > > Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com> > --- > fs/nilfs2/segment.c | 29 ++++++++++++++++------------- > 1 file changed, 16 insertions(+), 13 deletions(-) > > diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c > index 0afe0832c754..e95c667bdc8f 100644 > --- a/fs/nilfs2/segment.c > +++ b/fs/nilfs2/segment.c > @@ -680,7 +680,7 @@ static size_t nilfs_lookup_dirty_data_buffers(struct inode *inode, > loff_t start, loff_t end) > { > struct address_space *mapping = inode->i_mapping; > - struct pagevec pvec; > + struct folio_batch fbatch; > pgoff_t index = 0, last = ULONG_MAX; > size_t ndirties = 0; > int i; > @@ -694,23 +694,26 @@ static size_t nilfs_lookup_dirty_data_buffers(struct inode *inode, > index = start >> PAGE_SHIFT; > last = end >> PAGE_SHIFT; > } > - pagevec_init(&pvec); > + folio_batch_init(&fbatch); > repeat: > if (unlikely(index > last) || > - !pagevec_lookup_range_tag(&pvec, mapping, &index, last, > - PAGECACHE_TAG_DIRTY)) > + !filemap_get_folios_tag(mapping, &index, last, > + PAGECACHE_TAG_DIRTY, &fbatch)) > return ndirties; > > - for (i = 0; i < pagevec_count(&pvec); i++) { > + for (i = 0; i < folio_batch_count(&fbatch); i++) { > struct buffer_head *bh, *head; > - struct page *page = pvec.pages[i]; > + struct folio *folio = fbatch.folios[i]; > > - lock_page(page); > - if (!page_has_buffers(page)) > - create_empty_buffers(page, i_blocksize(inode), 0); > - unlock_page(page); > + head = folio_buffers(folio); > + folio_lock(folio); Could you please swap these two lines to keep the "head" check in the lock? Thanks, Ryusuke Konishi > + if (!head) { > + create_empty_buffers(&folio->page, i_blocksize(inode), 0); > + head = folio_buffers(folio); > + } > + folio_unlock(folio); > > - bh = head = page_buffers(page); > + bh = head; > do { > if (!buffer_dirty(bh) || buffer_async_write(bh)) > continue; > @@ -718,13 +721,13 @@ static size_t nilfs_lookup_dirty_data_buffers(struct inode *inode, > list_add_tail(&bh->b_assoc_buffers, listp); > ndirties++; > if (unlikely(ndirties >= nlimit)) { > - pagevec_release(&pvec); > + folio_batch_release(&fbatch); > cond_resched(); > return ndirties; > } > } while (bh = bh->b_this_page, bh != head); > } > - pagevec_release(&pvec); > + folio_batch_release(&fbatch); > cond_resched(); > goto repeat; > } > -- > 2.36.1 >
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c index 0afe0832c754..e95c667bdc8f 100644 --- a/fs/nilfs2/segment.c +++ b/fs/nilfs2/segment.c @@ -680,7 +680,7 @@ static size_t nilfs_lookup_dirty_data_buffers(struct inode *inode, loff_t start, loff_t end) { struct address_space *mapping = inode->i_mapping; - struct pagevec pvec; + struct folio_batch fbatch; pgoff_t index = 0, last = ULONG_MAX; size_t ndirties = 0; int i; @@ -694,23 +694,26 @@ static size_t nilfs_lookup_dirty_data_buffers(struct inode *inode, index = start >> PAGE_SHIFT; last = end >> PAGE_SHIFT; } - pagevec_init(&pvec); + folio_batch_init(&fbatch); repeat: if (unlikely(index > last) || - !pagevec_lookup_range_tag(&pvec, mapping, &index, last, - PAGECACHE_TAG_DIRTY)) + !filemap_get_folios_tag(mapping, &index, last, + PAGECACHE_TAG_DIRTY, &fbatch)) return ndirties; - for (i = 0; i < pagevec_count(&pvec); i++) { + for (i = 0; i < folio_batch_count(&fbatch); i++) { struct buffer_head *bh, *head; - struct page *page = pvec.pages[i]; + struct folio *folio = fbatch.folios[i]; - lock_page(page); - if (!page_has_buffers(page)) - create_empty_buffers(page, i_blocksize(inode), 0); - unlock_page(page); + head = folio_buffers(folio); + folio_lock(folio); + if (!head) { + create_empty_buffers(&folio->page, i_blocksize(inode), 0); + head = folio_buffers(folio); + } + folio_unlock(folio); - bh = head = page_buffers(page); + bh = head; do { if (!buffer_dirty(bh) || buffer_async_write(bh)) continue; @@ -718,13 +721,13 @@ static size_t nilfs_lookup_dirty_data_buffers(struct inode *inode, list_add_tail(&bh->b_assoc_buffers, listp); ndirties++; if (unlikely(ndirties >= nlimit)) { - pagevec_release(&pvec); + folio_batch_release(&fbatch); cond_resched(); return ndirties; } } while (bh = bh->b_this_page, bh != head); } - pagevec_release(&pvec); + folio_batch_release(&fbatch); cond_resched(); goto repeat; }
Convert function to use folios throughout. This is in preparation for the removal of find_get_pages_range_tag(). Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com> --- fs/nilfs2/segment.c | 29 ++++++++++++++++------------- 1 file changed, 16 insertions(+), 13 deletions(-)