user/sven/linux.git/include/linux/buffer_head.h, branch v6.5.5

Merge tag 'fs_for_v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2023-06-29T20:39:51Z

Pull misc filesystem updates from Jan Kara: - Rewrite kmap_local() handling in ext2 - Convert ext2 direct IO path to iomap (with some infrastructure tweaks associated with that) - Convert two boilerplate licenses in udf to SPDX identifiers - Other small udf, ext2, and quota fixes and cleanups * tag 'fs_for_v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: udf: Fix uninitialized array access for some pathnames ext2: Drop fragment support quota: fix warning in dqgrab() quota: Properly disable quotas when add_dquot_ref() fails fs: udf: udftime: Replace LGPL boilerplate with SPDX identifier fs: udf: Replace GPL 2.0 boilerplate license notice with SPDX identifier fs: Drop wait_unfrozen wait queue ext2_find_entry()/ext2_dotdot(): callers don't need page_addr anymore ext2_{set_link,delete_entry}(): don't bother with page_addr ext2_put_page(): accept any pointer within the page ext2_get_page(): saner type ext2: use offset_in_page() instead of open-coding it as subtraction ext2_rename(): set_link and delete_entry may fail ext2: Add direct-io trace points ext2: Move direct-io to use iomap ext2: Use generic_buffers_fsync() implementation ext4: Use generic_buffers_fsync_noflush() implementation fs/buffer.c: Add generic_buffers_fsync*() implementation ext2/dax: Fix ext2_setsize when len is page aligned

buffer: convert page_zero_new_buffers() to folio_zero_new_buffers()

2023-06-19T23:19:31Z

Most of the callers already have a folio; convert reiserfs_write_end() to have a folio. Removes a couple of hidden calls to compound_head(). Link: https://lkml.kernel.org/r/20230612210141.730128-10-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Cc: Andreas Gruenbacher Cc: Bob Peterson Cc: Hannes Reinecke Cc: Luis Chamberlain Signed-off-by: Andrew Morton

buffer: convert __block_write_full_page() to __block_write_full_folio()

2023-06-19T23:19:30Z

Remove nine hidden calls to compound_head() by using a folio instead of a page. Link: https://lkml.kernel.org/r/20230612210141.730128-5-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Tested-by: Bob Peterson Reviewed-by: Bob Peterson Cc: Andreas Gruenbacher Cc: Hannes Reinecke Cc: Luis Chamberlain Signed-off-by: Andrew Morton

fs/buffer.c: Add generic_buffers_fsync*() implementation

2023-05-16T09:32:42Z

Some of the higher layers like iomap takes inode_lock() when calling generic_write_sync(). Also writeback already happens from other paths without inode lock, so it's difficult to say that we really need sync_mapping_buffers() to take any inode locking here. Having said that, let's add generic_buffers_fsync/_noflush() implementation in buffer.c with no inode_lock/unlock() for now so that filesystems like ext2 and ext4's nojournal mode can use it. Ext4 when got converted to iomap for direct-io already copied it's own variant of __generic_file_fsync() without lock. This patch adds generic_buffers_fsync() & generic_buffers_fsync_noflush() implementations for use in filesystems like ext2 & ext4 respectively. Later we can review other filesystems as well to see if we can make generic_buffers_fsync/_noflush() which does not take any inode_lock() as the default path. Tested-by: Disha Goel Reviewed-by: Christoph Hellwig Signed-off-by: Ritesh Harjani (IBM) Signed-off-by: Jan Kara Message-Id:

fs/buffer: add folio_create_empty_buffers helper

2023-04-21T21:52:01Z

Folio version of create_empty_buffers(). This is required to convert create_page_buffers() to folio_create_buffers() later in the series. It removes several calls to compound_head() as it works directly on folio compared to create_empty_buffers(). Hence, create_empty_buffers() has been modified to call folio_create_empty_buffers(). Link: https://lkml.kernel.org/r/20230417123618.22094-4-p.raghav@samsung.com Signed-off-by: Pankaj Raghav Reviewed-by: Matthew Wilcox (Oracle) Reviewed-by: Hannes Reinecke Cc: Alexander Viro Cc: Christian Brauner Cc: Luis Chamberlain Signed-off-by: Andrew Morton

buffer: add folio_alloc_buffers() helper

2023-04-21T21:52:01Z

Folio version of alloc_page_buffers() helper. This is required to convert create_page_buffers() to folio_create_buffers() later in the series. alloc_page_buffers() has been modified to call folio_alloc_buffers() which adds one call to compound_head() but folio_alloc_buffers() removes one call to compound_head() compared to the existing alloc_page_buffers() implementation. Link: https://lkml.kernel.org/r/20230417123618.22094-3-p.raghav@samsung.com Signed-off-by: Pankaj Raghav Reviewed-by: Matthew Wilcox (Oracle) Reviewed-by: Hannes Reinecke Cc: Alexander Viro Cc: Christian Brauner Cc: Luis Chamberlain Signed-off-by: Andrew Morton

fs/buffer: add folio_set_bh helper

2023-04-21T21:52:01Z

Patch series "convert create_page_buffers to folio_create_buffers". One of the first kernel panic we hit when we try to increase the block size > 4k is inside create_page_buffers()[1]. Even though buffer.c function do not support large folios (folios > PAGE_SIZE) at the moment, these changes are required when we want to remove that constraint. This patch (of 4): The folio version of set_bh_page(). This is required to convert create_page_buffers() to folio_create_buffers() later in the series. Link: https://lkml.kernel.org/r/20230417123618.22094-1-p.raghav@samsung.com Link: https://lkml.kernel.org/r/20230417123618.22094-2-p.raghav@samsung.com Signed-off-by: Pankaj Raghav Reviewed-by: Matthew Wilcox (Oracle) Reviewed-by: Hannes Reinecke Cc: Alexander Viro Cc: Christian Brauner Cc: Luis Chamberlain Signed-off-by: Andrew Morton

buffer: add b_folio as an alias of b_page

2023-01-19T01:12:39Z

Patch series "Start converting buffer_heads to use folios". I was hoping that filesystems would convert from buffer_heads to iomap, but that's not happening particularly quickly. So the buffer_head infrastructure needs to be converted from being page-based to being folio-based. This patch (of 12): Buffer heads point to the allocation (ie the folio), not the page. This is currently the same thing for all filesystems that use buffer heads, so this is a safe transitional step. Link: https://lkml.kernel.org/r/20221215214402.3522366-1-willy@infradead.org Link: https://lkml.kernel.org/r/20221215214402.3522366-2-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Reviewed-by: Jan Kara Signed-off-by: Andrew Morton

Merge tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2022-10-11T00:53:04Z

Pull MM updates from Andrew Morton: - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in linux-next for a couple of months without, to my knowledge, any negative reports (or any positive ones, come to that). - Also the Maple Tree from Liam Howlett. An overlapping range-based tree for vmas. It it apparently slightly more efficient in its own right, but is mainly targeted at enabling work to reduce mmap_lock contention. Liam has identified a number of other tree users in the kernel which could be beneficially onverted to mapletrees. Yu Zhao has identified a hard-to-hit but "easy to fix" lockdep splat at [1]. This has yet to be addressed due to Liam's unfortunately timed vacation. He is now back and we'll get this fixed up. - Dmitry Vyukov introduces KMSAN: the Kernel Memory Sanitizer. It uses clang-generated instrumentation to detect used-unintialized bugs down to the single bit level. KMSAN keeps finding bugs. New ones, as well as the legacy ones. - Yang Shi adds a userspace mechanism (madvise) to induce a collapse of memory into THPs. - Zach O'Keefe has expanded Yang Shi's madvise(MADV_COLLAPSE) to support file/shmem-backed pages. - userfaultfd updates from Axel Rasmussen - zsmalloc cleanups from Alexey Romanov - cleanups from Miaohe Lin: vmscan, hugetlb_cgroup, hugetlb and memory-failure - Huang Ying adds enhancements to NUMA balancing memory tiering mode's page promotion, with a new way of detecting hot pages. - memcg updates from Shakeel Butt: charging optimizations and reduced memory consumption. - memcg cleanups from Kairui Song. - memcg fixes and cleanups from Johannes Weiner. - Vishal Moola provides more folio conversions - Zhang Yi removed ll_rw_block() :( - migration enhancements from Peter Xu - migration error-path bugfixes from Huang Ying - Aneesh Kumar added ability for a device driver to alter the memory tiering promotion paths. For optimizations by PMEM drivers, DRM drivers, etc. - vma merging improvements from Jakub Matěn. - NUMA hinting cleanups from David Hildenbrand. - xu xin added aditional userspace visibility into KSM merging activity. - THP & KSM code consolidation from Qi Zheng. - more folio work from Matthew Wilcox. - KASAN updates from Andrey Konovalov. - DAMON cleanups from Kaixu Xia. - DAMON work from SeongJae Park: fixes, cleanups. - hugetlb sysfs cleanups from Muchun Song. - Mike Kravetz fixes locking issues in hugetlbfs and in hugetlb core. Link: https://lkml.kernel.org/r/CAOUHufZabH85CeUN-MEMgL8gJGzJEWUrkiM58JkTbBhh-jew0Q@mail.gmail.com [1] * tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (555 commits) hugetlb: allocate vma lock for all sharable vmas hugetlb: take hugetlb vma_lock when clearing vma_lock->vma pointer hugetlb: fix vma lock handling during split vma and range unmapping mglru: mm/vmscan.c: fix imprecise comments mm/mglru: don't sync disk for each aging cycle mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbol mm: memcontrol: use do_memsw_account() in a few more places mm: memcontrol: deprecate swapaccounting=0 mode mm: memcontrol: don't allocate cgroup swap arrays when memcg is disabled mm/secretmem: remove reduntant return value mm/hugetlb: add available_huge_pages() func mm: remove unused inline functions from include/linux/mm_inline.h selftests/vm: add selftest for MADV_COLLAPSE of uffd-minor memory selftests/vm: add file/shmem MADV_COLLAPSE selftest for cleared pmd selftests/vm: add thp collapse shmem testing selftests/vm: add thp collapse file and tmpfs testing selftests/vm: modularize thp collapse memory operations selftests/vm: dedup THP helpers mm/khugepaged: add tracepoint to hpage_collapse_scan_file() mm/madvise: add file and shmem support to MADV_COLLAPSE ...

Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2022-10-07T00:45:53Z

Pull ext4 updates from Ted Ts'o: "The first two changes involve files outside of fs/ext4: - submit_bh() can never return an error, so change it to return void, and remove the unused checks from its callers - fix I_DIRTY_TIME handling so it will be set even if the inode already has I_DIRTY_INODE Performance: - Always enable i_version counter (as btrfs and xfs already do). Remove some uneeded i_version bumps to avoid unnecessary nfs cache invalidations - Wake up journal waiters in FIFO order, to avoid some journal users from not getting a journal handle for an unfairly long time - In ext4_write_begin() allocate any necessary buffer heads before starting the journal handle - Don't try to prefetch the block allocation bitmaps for a read-only file system Bug Fixes: - Fix a number of fast commit bugs, including resources leaks and out of bound references in various error handling paths and/or if the fast commit log is corrupted - Avoid stopping the online resize early when expanding a file system which is less than 16TiB to a size greater than 16TiB - Fix apparent metadata corruption caused by a race with a metadata buffer head getting migrated while it was trying to be read - Mark the lazy initialization thread freezable to prevent suspend failures - Other miscellaneous bug fixes Cleanups: - Break up the incredibly long ext4_full_super() function by refactoring to move code into more understandable, smaller functions - Remove the deprecated (and ignored) noacl and nouser_attr mount option - Factor out some common code in fast commit handling - Other miscellaneous cleanups" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (53 commits) ext4: fix potential out of bound read in ext4_fc_replay_scan() ext4: factor out ext4_fc_get_tl() ext4: introduce EXT4_FC_TAG_BASE_LEN helper ext4: factor out ext4_free_ext_path() ext4: remove unnecessary drop path references in mext_check_coverage() ext4: update 'state->fc_regions_size' after successful memory allocation ext4: fix potential memory leak in ext4_fc_record_regions() ext4: fix potential memory leak in ext4_fc_record_modified_inode() ext4: remove redundant checking in ext4_ioctl_checkpoint jbd2: add miss release buffer head in fc_do_one_pass() ext4: move DIOREAD_NOLOCK setting to ext4_set_def_opts() ext4: remove useless local variable 'blocksize' ext4: unify the ext4 super block loading operation ext4: factor out ext4_journal_data_mode_check() ext4: factor out ext4_load_and_init_journal() ext4: factor out ext4_group_desc_init() and ext4_group_desc_free() ext4: factor out ext4_geometry_check() ext4: factor out ext4_check_feature_compatibility() ext4: factor out ext4_init_metadata_csum() ext4: factor out ext4_encoding_init() ...