| Message ID | 20240308-vfs-misc-a4e7c50ce769@brauner (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [GIT,PULL] vfs misc | expand |
The pull request you sent on Fri, 8 Mar 2024 11:09:08 +0100:
> git@gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs tags/vfs-6.9.misc
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/7ea65c89d864f1e9aa892eec85625a96fa9acee6
Thank you!
Hey Linus, /* Summary */ This contains the usual miscellaneous features, cleanups, and fixes for vfs and individual fses. Features ======== * Support idmapped mounts for hugetlbfs. * Add RWF_NOAPPEND flag for pwritev2(). This allows to fix a bug where the passed offset is ignored if the file is O_APPEND. The new flag allows a caller to enforce that the offset is honored to conform to posix even if the file was opened in append mode. * Move i_mmap_rwsem in struct address_space to avoid false sharing between i_mmap and i_mmap_rwsem. * Convert efs, qnx4, and coda to use the new mount api. * Add a generic is_dot_dotdot() helper that's used by various filesystems and the VFS code instead of open-coding it mutliple times. * Recently we've added stable offsets which allows stable ordering when iterating directories exported through NFS on e.g., tmpfs filesystems. Originally an xarray was used for the offset map but that caused slab fragmentation issues over time. Tis switches the offset map to the maple tree which has a dense mode that handles this scenario a lot better. Includes tests. * Finally merge the case-insensitive improvement series Gabriel has been working on for a long time. This cleanly propagates case insensitive operations through ->s_d_op which in turn allows us to remove the quite ugly generic_set_encrypted_ci_d_ops() operations. It also improves performance by trying a case-sensitive comparison first and then fallback to case-insensitive lookup if that fails. This also fixes a bug where overlayfs would be able to be mounted over a case insensitive directory which would lead to all sort of odd behaviors. Cleanups ======== * Make file_dentry() a simple accessor now that ->d_real() is simplified because of the backing file work we did the last two cycles. * Use the dedicated file_mnt_idmap helper in ntfs3. * Use smp_load_acquire/store_release() in the i_size_read/write helpers and thus remove the hack to handle i_size reads in the filemap code. * The SLAB_MEM_SPREAD is a nop now. Remove it from various places in fs/ * It's no longer necessary to perform a second built-in initramfs unpack call because we retain the contents of the previous extraction. Remove it. * Now that we have removed various allocators kfree_rcu() always works with kmem caches and kmalloc(). So simplify various places that only use an rcu callback in order to handle the kmem cache case. * Convert the pipe code to use a lockdep comparison function instead of open-coding the nesting making lockdep validation easier. * Move code into fs-writeback.c that was located in a header but can be made static as it's only used in that one file. * Rewrite the alignment checking iterators for iovec and bvec to be easier to read, and also significantly more compact in terms of generated code. This saves 270 bytes of text on x86-64 (with clang-18) and 224 bytes on arm64 (with gcc-13). In profiles it also saves a bit of time for the same workload. * Switch various places to use KMEM_CACHE instead of kmem_cache_create(). * Use inode_set_ctime_to_ts() in inode_set_ctime_current() * Use kzalloc() in name_to_handle_at() to avoid kernel infoleak. * Various smaller cleanups for eventfds. Fixes ===== * Fix various comments and typos, and unneeded initializations. * Fix stack allocation hack for clang in the select code. * Improve dump_mapping() debug code on a best-effort basis. * Fix build errors in various selftests. * Avoid wrap-around instrumentation in various places. * Don't allow user namespaces without an an idmapping written to be used for idmapped mounts. * Fix sysv sb_read() call. * Fix fallback implementation of the get_name() export operation. /* Testing */ clang: Debian clang version 16.0.6 (19) gcc: (Debian 13.2.0-7) 13.2.0 All patches are based on v6.8-rc1 and have been sitting in linux-next. No build failures or warnings were observed. /* Conflicts */ Merge conflicts with other trees ================================ [1] linux-next: manual merge of the scsi-mkp tree with the vfs-brauner tree https://lore.kernel.org/linux-next/20240227153716.43e5cbad@canb.auug.org.au Merge conflicts with mainline ============================= No known conflicts. The following changes since commit 6613476e225e090cc9aad49be7fa504e290dd33d: Linux 6.8-rc1 (2024-01-21 14:11:32 -0800) are available in the Git repository at: git@gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs tags/vfs-6.9.misc for you to fetch changes up to 09406ad8e5105729291a7639160e0cd51c9e0c6c: Merge tag 'for-next-6.9' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/krisman/unicode into vfs.misc (2024-03-07 11:55:41 +0100) Please consider pulling these changes from the signed vfs-6.9.misc tag. Thanks! Christian ---------------------------------------------------------------- vfs-6.9.misc ---------------------------------------------------------------- Alexander Mikhalitsyn (1): ntfs3: use file_mnt_idmap helper Amir Goldstein (2): fs: make file_dentry() a simple accessor fs: remove the inode argument to ->d_real() method Andreas Gruenbacher (1): fs: Wrong function name in comment Arnd Bergmann (1): fs/select: rework stack allocation hack for clang Baokun Li (3): fs: make the i_size_read/write helpers be smp_load_acquire/store_release() Revert "mm/filemap: avoid buffered read/write race to read inconsistent data" asm-generic: remove extra type checking in acquire/release for non-SMP case Baolin Wang (1): fs: improve dump_mapping() robustness Bill O'Donnell (2): efs: convert efs to use the new mount api qnx4: convert qnx4 to use the new mount api Chen Hanxiao (1): __fs_parse: Correct a documentation comment Chengming Zhou (10): vfs: remove SLAB_MEM_SPREAD flag usage sysv: remove SLAB_MEM_SPREAD flag usage romfs: remove SLAB_MEM_SPREAD flag usage reiserfs: remove SLAB_MEM_SPREAD flag usage qnx6: remove SLAB_MEM_SPREAD flag usage proc: remove SLAB_MEM_SPREAD flag usage openpromfs: remove SLAB_MEM_SPREAD flag usage minix: remove SLAB_MEM_SPREAD flag usage jfs: remove SLAB_MEM_SPREAD flag usage efs: remove SLAB_MEM_SPREAD flag usage Christian Brauner (3): Merge tag 'exportfs-6.9' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/cel/linux Merge series 'Use Maple Trees for simple_offset utilities' of https://lore.kernel.org/r/170820083431.6328.16233178852085891453.stgit@91.116.238.104.host.secureserver.net Merge tag 'for-next-6.9' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/krisman/unicode into vfs.misc Chuck Lever (6): fs: Create a generic is_dot_dotdot() utility libfs: Re-arrange locking in offset_iterate_dir() libfs: Define a minimum directory offset libfs: Add simple_offset_empty() maple_tree: Add mtree_alloc_cyclic() libfs: Convert simple directory offsets to use a Maple Tree David Disseldorp (1): initramfs: remove duplicate built-in __initramfs_start unpacking David Howells (1): Convert coda to use the new mount API Dmitry Antipov (2): fs: prefer kfree_rcu() in fasync_remove_entry() eventpoll: prefer kfree_rcu() in __ep_remove() Gabriel Krisman Bertazi (11): libfs: Attempt exact-match comparison first during casefolded lookup ovl: Always reject mounting over case-insensitive directories fscrypt: Factor out a helper to configure the lookup dentry fscrypt: Drop d_revalidate for valid dentries during lookup fscrypt: Drop d_revalidate once the key is added libfs: Merge encrypted_ci_dentry_ops and ci_dentry_ops libfs: Add helper to choose dentry operations at mount-time ext4: Configure dentry operations at dentry-creation time f2fs: Configure dentry operations at dentry-creation time ubifs: Configure dentry operations at dentry-creation time libfs: Drop generic_set_encrypted_ci_d_ops Giuseppe Scrivano (1): hugetlbfs: support idmapped mounts Hu Yadi (1): selftests/filesystems:fix build error in overlayfs Hu.Yadi (1): selftests/move_mount_set_group:Make tests build with old libc Huang Xiaojia (1): epoll: Remove ep_scan_ready_list() in comments Jay (1): fs: fix a typo in attr.c Jens Axboe (1): iov_iter: streamline iovec/bvec alignment iteration JonasZhou (1): fs/address_space: move i_mmap_rwsem to mitigate a false sharing with i_mmap. Kees Cook (2): iov_iter: Avoid wrap-around instrumentation in copy_compat_iovec_from_user() select: Avoid wrap-around instrumentation in do_sys_poll() Kemeng Shi (1): writeback: move wb_wakeup_delayed defination to fs-writeback.c Kent Overstreet (1): fs/pipe: Convert to lockdep_cmp_fn Kunwu Chan (3): buffer: Use KMEM_CACHE instead of kmem_cache_create() fs: Use KMEM_CACHE instead of kmem_cache_create mbcache: Simplify the allocation of slab caches Li zeming (1): libfs: Remove unnecessary ‘0’ values from ret Liam R. Howlett (1): test_maple_tree: testing the cyclic allocation Nguyen Dinh Phi (1): fs: use inode_set_ctime_to_ts to set inode ctime to current time Nikita Zhandarovich (1): do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak Randy Dunlap (1): fs/hfsplus: use better @opf description Rich Felker (1): vfs: add RWF_NOAPPEND flag for pwritev2 Taylor Jackson (1): fs/mnt_idmapping.c: Return -EINVAL when no map is written Tetsuo Handa (1): sysv: don't call sb_bread() with pointers_lock held Trond Myklebust (1): exportfs: fix the fallback implementation of the get_name export operation Vincenzo Mezzela (1): docs: filesystems: fix typo in docs Wen Yang (3): eventfd: add a BUILD_BUG_ON() to ensure consistency between EFD_SEMAPHORE and the uapi eventfd: move 'eventfd-count' printing out of spinlock eventfd: strictly check the count parameter of eventfd_write to avoid inputting illegal strings Documentation/filesystems/files.rst | 2 +- Documentation/filesystems/locking.rst | 2 +- Documentation/filesystems/vfs.rst | 16 +- fs/attr.c | 2 +- fs/backing-file.c | 4 +- fs/buffer.c | 10 +- fs/coda/inode.c | 143 ++++++++++----- fs/crypto/fname.c | 8 +- fs/crypto/hooks.c | 15 +- fs/dcache.c | 2 +- fs/ecryptfs/crypto.c | 10 -- fs/efs/super.c | 118 ++++++++---- fs/eventfd.c | 16 +- fs/eventpoll.c | 16 +- fs/exportfs/expfs.c | 2 +- fs/ext4/namei.c | 1 - fs/ext4/super.c | 1 + fs/f2fs/f2fs.h | 11 -- fs/f2fs/namei.c | 1 - fs/f2fs/super.c | 1 + fs/fcntl.c | 8 +- fs/fhandle.c | 2 +- fs/fs-writeback.c | 25 +++ fs/fs_parser.c | 4 +- fs/hfsplus/wrapper.c | 2 +- fs/hugetlbfs/inode.c | 23 ++- fs/inode.c | 7 +- fs/jfs/super.c | 2 +- fs/libfs.c | 200 +++++++++++---------- fs/mbcache.c | 4 +- fs/minix/inode.c | 2 +- fs/mnt_idmapping.c | 2 +- fs/namei.c | 6 +- fs/ntfs3/namei.c | 2 +- fs/openpromfs/inode.c | 2 +- fs/overlayfs/params.c | 14 +- fs/overlayfs/super.c | 52 +++--- fs/pipe.c | 81 ++++----- fs/proc/inode.c | 2 +- fs/qnx4/inode.c | 47 +++-- fs/qnx6/inode.c | 2 +- fs/reiserfs/super.c | 1 - fs/romfs/super.c | 4 +- fs/select.c | 15 +- fs/sysv/inode.c | 2 +- fs/sysv/itree.c | 10 +- fs/ubifs/dir.c | 1 - fs/ubifs/super.c | 1 + include/asm-generic/barrier.h | 2 - include/linux/backing-dev.h | 1 - include/linux/dcache.h | 18 +- include/linux/fs.h | 61 ++++++- include/linux/fscrypt.h | 66 ++++++- include/linux/maple_tree.h | 7 + include/linux/poll.h | 4 - include/uapi/linux/fs.h | 5 +- init/initramfs.c | 2 - lib/iov_iter.c | 60 ++++--- lib/maple_tree.c | 93 ++++++++++ lib/test_maple_tree.c | 44 +++++ mm/backing-dev.c | 25 --- mm/filemap.c | 9 - mm/shmem.c | 4 +- .../selftests/filesystems/overlayfs/dev_in_maps.c | 10 +- .../move_mount_set_group_test.c | 4 +- 65 files changed, 816 insertions(+), 503 deletions(-)