kernel/linux.git/block/partitions/core.c, branch v6.2.2

block: don't add partitions if GD_SUPPRESS_PART_SCAN is set

2022-09-03T17:29:03+00:00

Commit b9684a71fca7 ("block, loop: support partitions without scanning") adds GD_SUPPRESS_PART_SCAN for replacing part function of GENHD_FL_NO_PART. But looks blk_add_partitions() is missed, since loop doesn't want to add partitions if GENHD_FL_NO_PART was set. And it causes regression on libblockdev (as called from udisks) which operates with the LO_FLAGS_PARTSCAN. Fixes the issue by not adding partitions if GD_SUPPRESS_PART_SCAN is set. Fixes: b9684a71fca7 ("block, loop: support partitions without scanning") Signed-off-by: Ming Lei Reviewed-by: Christoph Hellwig Link: https://lore.kernel.org/r/20220823103819.395776-1-ming.lei@redhat.com Signed-off-by: Jens Axboe

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

2022-08-03T17:35:43+00:00

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() ...

block: Convert read_part_sector() to use a folio

2022-08-02T16:34:03+00:00

This relatively straightforward converion saves a call to compound_head() hidden inside put_page(). Signed-off-by: Matthew Wilcox (Oracle)

block: Use PAGE_SECTORS_SHIFT

2022-08-02T16:34:03+00:00

The bare use of '9' confuses some people. We also don't need this cast, since the compiler does exactly that cast for us. Signed-off-by: Matthew Wilcox (Oracle)

block: Handle partition read errors more consistently

2022-08-02T16:34:03+00:00

Set p->v to NULL if we try to read beyond the end of the disk, just like we do if we get an error returned from trying to read the disk. Signed-off-by: Matthew Wilcox (Oracle)

block: Simplify read_part_sector()

2022-08-02T16:34:03+00:00

That rather complicated expression is just trying to find the offset of this sector within a page, and there are easier ways to express that. Signed-off-by: Matthew Wilcox (Oracle)

block: pass a gendisk to blk_queue_set_zoned

2022-07-06T12:46:26+00:00

Prepare for storing the zone related field in struct gendisk instead of struct request_queue. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Reviewed-by: Damien Le Moal Reviewed-by: Johannes Thumshirn Link: https://lore.kernel.org/r/20220706070350.1703384-7-hch@lst.de Signed-off-by: Jens Axboe

block: Remove check of PageError

2022-06-29T12:51:06+00:00

If read_mapping_page() sees a page with PageError set, it returns a PTR_ERR(). Checking PageError again is simply dead code. Signed-off-by: Matthew Wilcox (Oracle)

block: simplify blktrace sysfs attribute creation

2022-06-28T17:32:42+00:00

Add the trace attributes to the default gendisk attributes, just like we already do for partitions. Signed-off-by: Christoph Hellwig Reviewed-by: Bart Van Assche Link: https://lore.kernel.org/r/20220628171850.1313069-2-hch@lst.de Signed-off-by: Jens Axboe

block: turn bdev->bd_openers into an atomic_t

2022-04-18T12:54:09+00:00

All manipulation of bd_openers is under disk->open_mutex and will remain so for the foreseeable future. But at least one place reads it without the lock (blkdev_get) and there are more to be added. So make sure the compiler does not do turn the increments and decrements into non-atomic sequences by using an atomic_t. Signed-off-by: Christoph Hellwig Reviewed-by: Jan Kara Link: https://lore.kernel.org/r/20220330052917.2566582-6-hch@lst.de Signed-off-by: Jens Axboe