linux/fs/buffer.c, branch v6.0

Merge tag 'folio-6.0' of git://git.infradead.org/users/willy/pagecache

2022-08-03T17:35:43Z

Pull folio updates from Matthew Wilcox: - Fix an accounting bug that made NR_FILE_DIRTY grow without limit when running xfstests - Convert more of mpage to use folios - Remove add_to_page_cache() and add_to_page_cache_locked() - Convert find_get_pages_range() to filemap_get_folios() - Improvements to the read_cache_page() family of functions - Remove a few unnecessary checks of PageError - Some straightforward filesystem conversions to use folios - Split PageMovable users out from address_space_operations into their own movable_operations - Convert aops->migratepage to aops->migrate_folio - Remove nobh support (Christoph Hellwig) * tag 'folio-6.0' of git://git.infradead.org/users/willy/pagecache: (78 commits) fs: remove the NULL get_block case in mpage_writepages fs: don't call ->writepage from __mpage_writepage fs: remove the nobh helpers jfs: stop using the nobh helper ext2: remove nobh support ntfs3: refactor ntfs_writepages mm/folio-compat: Remove migration compatibility functions fs: Remove aops->migratepage() secretmem: Convert to migrate_folio hugetlb: Convert to migrate_folio aio: Convert to migrate_folio f2fs: Convert to filemap_migrate_folio() ubifs: Convert to filemap_migrate_folio() btrfs: Convert btrfs_migratepage to migrate_folio mm/migrate: Add filemap_migrate_folio() mm/migrate: Convert migrate_page() to migrate_folio() nfs: Convert to migrate_folio btrfs: Convert btree_migratepage to migrate_folio mm/migrate: Convert expected_page_refs() to folio_expected_refs() mm/migrate: Convert buffer_migrate_page() to buffer_migrate_folio() ...

fs: remove the nobh helpers

2022-08-02T16:34:04Z

All callers are gone, so remove the now dead code. Signed-off-by: Christoph Hellwig Reviewed-by: Jan Kara Signed-off-by: Matthew Wilcox (Oracle)

buffer: Don't test folio error in block_read_full_folio()

2022-08-02T16:34:02Z

We can cache this information in a local variable instead of communicating from one part of the function to another via folio flags. Signed-off-by: Matthew Wilcox (Oracle)

fs/buffer: Fix the ll_rw_block() kernel-doc header

2022-07-15T19:10:04Z

Bring the ll_rw_block() kernel-doc header again in sync with the function prototype. Reported-by: Stephen Rothwell Cc: Alexander Viro Cc: Jan Kara Cc: Stephen Rothwell Fixes: 1420c4a549bf ("fs/buffer: Combine two submit_bh() and ll_rw_block() arguments") Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220715184735.2326034-2-bvanassche@acm.org Signed-off-by: Jens Axboe

fs/buffer: Combine two submit_bh() and ll_rw_block() arguments

2022-07-14T18:14:32Z

Both submit_bh() and ll_rw_block() accept a request operation type and request flags as their first two arguments. Micro-optimize these two functions by combining these first two arguments into a single argument. This patch does not change the behavior of any of the modified code. Cc: Alexander Viro Cc: Jan Kara Acked-by: Song Liu (for the md changes) Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-48-bvanassche@acm.org Signed-off-by: Jens Axboe

fs/buffer: Use the new blk_opf_t type

2022-07-14T18:14:32Z

Improve static type checking by using the new blk_opf_t type for block layer request flags. Change WRITE into REQ_OP_WRITE. This patch does not change any functionality since REQ_OP_WRITE == WRITE == 1. Reviewed-by: Jan Kara Cc: Al Viro Cc: Christoph Hellwig Cc: Matthew Wilcox Signed-off-by: Bart Van Assche Link: https://lore.kernel.org/r/20220714180729.1065367-47-bvanassche@acm.org Signed-off-by: Jens Axboe

buffer: Remove check for PageError

2022-06-29T12:51:07Z

If a buffer is completed with an error, its uptodate flag will be clear, so the page_uptodate variable will have been set to 0. There's no need to check PageError here. Signed-off-by: Matthew Wilcox (Oracle)

buffer: Convert clean_bdev_aliases() to use filemap_get_folios()

2022-06-29T12:51:05Z

Use a folio throughout this function. Signed-off-by: Matthew Wilcox (Oracle) Reviewed-by: Christoph Hellwig Acked-by: Christian Brauner (Microsoft)

fs: Convert drop_buffers() to use a folio

2022-05-10T03:12:34Z

All callers now have a folio. Signed-off-by: Matthew Wilcox (Oracle) Reviewed-by: Jeff Layton

fs: Change try_to_free_buffers() to take a folio

2022-05-10T03:12:34Z

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) Reviewed-by: Jeff Layton