All but two of the callers already have a folio; pass a folio into
try_to_free_buffers(). This removes the last user of cancel_dirty_page()
so remove that wrapper function too.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
fs/buffer.c | 42 ++++++++++++++++++-------------------
fs/ext4/inode.c | 2 +-
fs/gfs2/aops.c | 2 +-
fs/hfs/inode.c | 2 +-
fs/hfsplus/inode.c | 2 +-
fs/jbd2/commit.c | 2 +-
fs/jbd2/transaction.c | 4 ++--
fs/mpage.c | 2 +-
fs/ocfs2/aops.c | 2 +-
fs/reiserfs/inode.c | 2 +-
fs/reiserfs/journal.c | 2 +-
include/linux/buffer_head.h | 4 ++--
include/linux/pagemap.h | 4 ----
mm/filemap.c | 2 +-
mm/migrate.c | 2 +-
mm/vmscan.c | 2 +-
16 files changed, 37 insertions(+), 41 deletions(-)
diff --git a/fs/buffer.c b/fs/buffer.c
index 786ef5b98c80..701af0035802 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -955,7 +955,7 @@ grow_dev_page(struct block_device *bdev, sector_t block,
size);
goto done;
}
- if (!try_to_free_buffers(page))
+ if (!try_to_free_buffers(page_folio(page)))
goto failed;
}
@@ -3155,20 +3155,20 @@ int sync_dirty_buffer(struct buffer_head *bh)
EXPORT_SYMBOL(sync_dirty_buffer);
/*
- * try_to_free_buffers() checks if all the buffers on this particular page
+ * try_to_free_buffers() checks if all the buffers on this particular folio
* are unused, and releases them if so.
*
* Exclusion against try_to_free_buffers may be obtained by either
- * locking the page or by holding its mapping's private_lock.
+ * locking the folio or by holding its mapping's private_lock.
*
- * If the page is dirty but all the buffers are clean then we need to
- * be sure to mark the page clean as well. This is because the page
+ * If the folio is dirty but all the buffers are clean then we need to
+ * be sure to mark the folio clean as well. This is because the folio
* may be against a block device, and a later reattachment of buffers
- * to a dirty page will set *all* buffers dirty. Which would corrupt
+ * to a dirty folio will set *all* buffers dirty. Which would corrupt
* filesystem data on the same device.
*
- * The same applies to regular filesystem pages: if all the buffers are
- * clean then we set the page clean and proceed. To do that, we require
+ * The same applies to regular filesystem folios: if all the buffers are
+ * clean then we set the folio clean and proceed. To do that, we require
* total exclusion from block_dirty_folio(). That is obtained with
* private_lock.
*
@@ -3207,40 +3207,40 @@ drop_buffers(struct page *page, struct buffer_head **buffers_to_free)
return 0;
}
-int try_to_free_buffers(struct page *page)
+bool try_to_free_buffers(struct folio *folio)
{
- struct address_space * const mapping = page->mapping;
+ struct address_space * const mapping = folio->mapping;
struct buffer_head *buffers_to_free = NULL;
- int ret = 0;
+ bool ret = 0;
- BUG_ON(!PageLocked(page));
- if (PageWriteback(page))
- return 0;
+ BUG_ON(!folio_test_locked(folio));
+ if (folio_test_writeback(folio))
+ return false;
if (mapping == NULL) { /* can this still happen? */
- ret = drop_buffers(page, &buffers_to_free);
+ ret = drop_buffers(&folio->page, &buffers_to_free);
goto out;
}
spin_lock(&mapping->private_lock);
- ret = drop_buffers(page, &buffers_to_free);
+ ret = drop_buffers(&folio->page, &buffers_to_free);
/*
* If the filesystem writes its buffers by hand (eg ext3)
- * then we can have clean buffers against a dirty page. We
- * clean the page here; otherwise the VM will never notice
+ * then we can have clean buffers against a dirty folio. We
+ * clean the folio here; otherwise the VM will never notice
* that the filesystem did any IO at all.
*
* Also, during truncate, discard_buffer will have marked all
- * the page's buffers clean. We discover that here and clean
- * the page also.
+ * the folio's buffers clean. We discover that here and clean
+ * the folio also.
*
* private_lock must be held over this entire operation in order
* to synchronise against block_dirty_folio and prevent the
* dirty bit from being lost.
*/
if (ret)
- cancel_dirty_page(page);
+ folio_cancel_dirty(folio);
spin_unlock(&mapping->private_lock);
out:
if (buffers_to_free) {
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 943937cb5302..987ea77e672d 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3255,7 +3255,7 @@ static bool ext4_release_folio(struct folio *folio, gfp_t wait)
if (journal)
return jbd2_journal_try_to_free_buffers(journal, folio);
else
- return try_to_free_buffers(&folio->page);
+ return try_to_free_buffers(folio);
}
static bool ext4_inode_datasync_dirty(struct inode *inode)
diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
index 95a674d70c04..106e90a36583 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -757,7 +757,7 @@ bool gfs2_release_folio(struct folio *folio, gfp_t gfp_mask)
} while (bh != head);
gfs2_log_unlock(sdp);
- return try_to_free_buffers(&folio->page);
+ return try_to_free_buffers(folio);
cannot_release:
gfs2_log_unlock(sdp);
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index 86fd50e5fccb..c4526f16355d 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -124,7 +124,7 @@ static bool hfs_release_folio(struct folio *folio, gfp_t mask)
} while (--i && nidx < tree->node_count);
spin_unlock(&tree->hash_lock);
}
- return res ? try_to_free_buffers(&folio->page) : false;
+ return res ? try_to_free_buffers(folio) : false;
}
static ssize_t hfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index f723e0e91d51..aeab83ed1c9c 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -121,7 +121,7 @@ static bool hfsplus_release_folio(struct folio *folio, gfp_t mask)
} while (--i && nidx < tree->node_count);
spin_unlock(&tree->hash_lock);
}
- return res ? try_to_free_buffers(&folio->page) : false;
+ return res ? try_to_free_buffers(folio) : false;
}
static ssize_t hfsplus_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 2f37108da0ec..eb315e81f1a6 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -82,7 +82,7 @@ static void release_buffer_page(struct buffer_head *bh)
folio_get(folio);
__brelse(bh);
- try_to_free_buffers(&folio->page);
+ try_to_free_buffers(folio);
folio_unlock(folio);
folio_put(folio);
return;
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index ee33d277d51e..e49bb0938376 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -2175,7 +2175,7 @@ bool jbd2_journal_try_to_free_buffers(journal_t *journal, struct folio *folio)
goto busy;
} while ((bh = bh->b_this_page) != head);
- ret = try_to_free_buffers(&folio->page);
+ ret = try_to_free_buffers(folio);
busy:
return ret;
}
@@ -2482,7 +2482,7 @@ int jbd2_journal_invalidate_folio(journal_t *journal, struct folio *folio,
} while (bh != head);
if (!partial_page) {
- if (may_free && try_to_free_buffers(&folio->page))
+ if (may_free && try_to_free_buffers(folio))
J_ASSERT(!folio_buffers(folio));
}
return 0;
diff --git a/fs/mpage.c b/fs/mpage.c
index 6df9c3aa5728..0d25f44f5707 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -431,7 +431,7 @@ static void clean_buffers(struct page *page, unsigned first_unmapped)
* disk before we reach the platter.
*/
if (buffer_heads_over_limit && PageUptodate(page))
- try_to_free_buffers(page);
+ try_to_free_buffers(page_folio(page));
}
/*
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 7d7b86ca078f..35d40a67204c 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -502,7 +502,7 @@ static bool ocfs2_release_folio(struct folio *folio, gfp_t wait)
{
if (!folio_buffers(folio))
return false;
- return try_to_free_buffers(&folio->page);
+ return try_to_free_buffers(folio);
}
static void ocfs2_figure_cluster_boundaries(struct ocfs2_super *osb,
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 9cf2e1420a74..0cffe054b78e 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -3234,7 +3234,7 @@ static bool reiserfs_release_folio(struct folio *folio, gfp_t unused_gfp_flags)
bh = bh->b_this_page;
} while (bh != head);
if (ret)
- ret = try_to_free_buffers(&folio->page);
+ ret = try_to_free_buffers(folio);
spin_unlock(&j->j_dirty_buffers_lock);
return ret;
}
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 99ba495b0f28..d8cc9a366124 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -606,7 +606,7 @@ static void release_buffer_page(struct buffer_head *bh)
folio_get(folio);
put_bh(bh);
if (!folio->mapping)
- try_to_free_buffers(&folio->page);
+ try_to_free_buffers(folio);
folio_unlock(folio);
folio_put(folio);
} else {
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index 31d82fd9abe8..c9d1463bb20f 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -158,7 +158,7 @@ void mark_buffer_write_io_error(struct buffer_head *bh);
void touch_buffer(struct buffer_head *bh);
void set_bh_page(struct buffer_head *bh,
struct page *page, unsigned long offset);
-int try_to_free_buffers(struct page *);
+bool try_to_free_buffers(struct folio *);
struct buffer_head *alloc_page_buffers(struct page *page, unsigned long size,
bool retry);
void create_empty_buffers(struct page *, unsigned long,
@@ -402,7 +402,7 @@ bool block_dirty_folio(struct address_space *mapping, struct folio *folio);
#else /* CONFIG_BLOCK */
static inline void buffer_init(void) {}
-static inline int try_to_free_buffers(struct page *page) { return 1; }
+static inline bool try_to_free_buffers(struct folio *folio) { return true; }
static inline int inode_has_buffers(struct inode *inode) { return 0; }
static inline void invalidate_inode_buffers(struct inode *inode) {}
static inline int remove_inode_buffers(struct inode *inode) { return 1; }
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 831b28dab01a..82dfb279e0c4 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -1067,10 +1067,6 @@ static inline void folio_cancel_dirty(struct folio *folio)
if (folio_test_dirty(folio))
__folio_cancel_dirty(folio);
}
-static inline void cancel_dirty_page(struct page *page)
-{
- folio_cancel_dirty(page_folio(page));
-}
bool folio_clear_dirty_for_io(struct folio *folio);
bool clear_page_dirty_for_io(struct page *page);
void folio_invalidate(struct folio *folio, size_t offset, size_t length);
diff --git a/mm/filemap.c b/mm/filemap.c
index 7d55bb53bff7..638802f60cec 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -3958,6 +3958,6 @@ bool filemap_release_folio(struct folio *folio, gfp_t gfp)
if (mapping && mapping->a_ops->release_folio)
return mapping->a_ops->release_folio(folio, gfp);
- return try_to_free_buffers(&folio->page);
+ return try_to_free_buffers(folio);
}
EXPORT_SYMBOL(filemap_release_folio);
diff --git a/mm/migrate.c b/mm/migrate.c
index 6c31ee1e1c9b..21d82636c291 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1013,7 +1013,7 @@ static int __unmap_and_move(struct page *page, struct page *newpage,
if (!page->mapping) {
VM_BUG_ON_PAGE(PageAnon(page), page);
if (page_has_private(page)) {
- try_to_free_buffers(page);
+ try_to_free_buffers(folio);
goto out_unlock_both;
}
} else if (page_mapped(page)) {
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 27851232e00c..f3f7ce2c4068 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1181,7 +1181,7 @@ static pageout_t pageout(struct folio *folio, struct address_space *mapping)
* folio->mapping == NULL while being dirty with clean buffers.
*/
if (folio_test_private(folio)) {
- if (try_to_free_buffers(&folio->page)) {
+ if (try_to_free_buffers(folio)) {
folio_clear_dirty(folio);
pr_info("%s: orphaned folio\n", __func__);
return PAGE_CLEAN;
--
2.34.1
