5.4-stable review patch. If anyone has any objections, please let me know.
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From: Ryusuke Konishi konishi.ryusuke@gmail.com
commit 299910dcb4525ac0274f3efa9527876315ba4f67 upstream.
After detecting file system corruption and degrading to a read-only mount, dirty folios and buffers in the page cache are cleared, and a large number of warnings are output at that time, often filling up the kernel log.
In this case, since the degrading to a read-only mount is output to the kernel log, these warnings are not very meaningful, and are rather a nuisance in system management and debugging.
The related nilfs2-specific page/folio routines have a silent argument that suppresses the warning output, but since it is not currently used meaningfully, remove both the silent argument and the warning output.
[konishi.ryusuke@gmail.com: adjusted for page/folio conversion] Link: https://lkml.kernel.org/r/20240816090128.4561-1-konishi.ryusuke@gmail.com Signed-off-by: Ryusuke Konishi konishi.ryusuke@gmail.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Stable-dep-of: ca76bb226bf4 ("nilfs2: do not force clear folio if buffer is referenced") Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/nilfs2/inode.c | 4 ++-- fs/nilfs2/mdt.c | 6 +++--- fs/nilfs2/page.c | 20 +++----------------- fs/nilfs2/page.h | 4 ++-- 4 files changed, 10 insertions(+), 24 deletions(-)
--- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -170,7 +170,7 @@ static int nilfs_writepages(struct addre int err = 0;
if (sb_rdonly(inode->i_sb)) { - nilfs_clear_dirty_pages(mapping, false); + nilfs_clear_dirty_pages(mapping); return -EROFS; }
@@ -193,7 +193,7 @@ static int nilfs_writepage(struct page * * have dirty pages that try to be flushed in background. * So, here we simply discard this dirty page. */ - nilfs_clear_dirty_page(page, false); + nilfs_clear_dirty_page(page); unlock_page(page); return -EROFS; } --- a/fs/nilfs2/mdt.c +++ b/fs/nilfs2/mdt.c @@ -410,7 +410,7 @@ nilfs_mdt_write_page(struct page *page, * have dirty pages that try to be flushed in background. * So, here we simply discard this dirty page. */ - nilfs_clear_dirty_page(page, false); + nilfs_clear_dirty_page(page); unlock_page(page); return -EROFS; } @@ -631,10 +631,10 @@ void nilfs_mdt_restore_from_shadow_map(s if (mi->mi_palloc_cache) nilfs_palloc_clear_cache(inode);
- nilfs_clear_dirty_pages(inode->i_mapping, true); + nilfs_clear_dirty_pages(inode->i_mapping); nilfs_copy_back_pages(inode->i_mapping, shadow->inode->i_mapping);
- nilfs_clear_dirty_pages(ii->i_assoc_inode->i_mapping, true); + nilfs_clear_dirty_pages(ii->i_assoc_inode->i_mapping); nilfs_copy_back_pages(ii->i_assoc_inode->i_mapping, NILFS_I(shadow->inode)->i_assoc_inode->i_mapping);
--- a/fs/nilfs2/page.c +++ b/fs/nilfs2/page.c @@ -355,9 +355,8 @@ repeat: /** * nilfs_clear_dirty_pages - discard dirty pages in address space * @mapping: address space with dirty pages for discarding - * @silent: suppress [true] or print [false] warning messages */ -void nilfs_clear_dirty_pages(struct address_space *mapping, bool silent) +void nilfs_clear_dirty_pages(struct address_space *mapping) { struct pagevec pvec; unsigned int i; @@ -378,7 +377,7 @@ void nilfs_clear_dirty_pages(struct addr * was acquired. Skip processing in that case. */ if (likely(page->mapping == mapping)) - nilfs_clear_dirty_page(page, silent); + nilfs_clear_dirty_page(page);
unlock_page(page); } @@ -390,19 +389,11 @@ void nilfs_clear_dirty_pages(struct addr /** * nilfs_clear_dirty_page - discard dirty page * @page: dirty page that will be discarded - * @silent: suppress [true] or print [false] warning messages */ -void nilfs_clear_dirty_page(struct page *page, bool silent) +void nilfs_clear_dirty_page(struct page *page) { - struct inode *inode = page->mapping->host; - struct super_block *sb = inode->i_sb; - BUG_ON(!PageLocked(page));
- if (!silent) - nilfs_warn(sb, "discard dirty page: offset=%lld, ino=%lu", - page_offset(page), inode->i_ino); - ClearPageUptodate(page); ClearPageMappedToDisk(page); ClearPageChecked(page); @@ -418,11 +409,6 @@ void nilfs_clear_dirty_page(struct page bh = head = page_buffers(page); do { lock_buffer(bh); - if (!silent) - nilfs_warn(sb, - "discard dirty block: blocknr=%llu, size=%zu", - (u64)bh->b_blocknr, bh->b_size); - set_mask_bits(&bh->b_state, clear_bits, 0); unlock_buffer(bh); } while (bh = bh->b_this_page, bh != head); --- a/fs/nilfs2/page.h +++ b/fs/nilfs2/page.h @@ -41,8 +41,8 @@ void nilfs_page_bug(struct page *);
int nilfs_copy_dirty_pages(struct address_space *, struct address_space *); void nilfs_copy_back_pages(struct address_space *, struct address_space *); -void nilfs_clear_dirty_page(struct page *, bool); -void nilfs_clear_dirty_pages(struct address_space *, bool); +void nilfs_clear_dirty_page(struct page *page); +void nilfs_clear_dirty_pages(struct address_space *mapping); void nilfs_mapping_init(struct address_space *mapping, struct inode *inode); unsigned int nilfs_page_count_clean_buffers(struct page *, unsigned int, unsigned int);