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2024-11-18Merge tag 'vfs-6.13.misc' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull misc vfs updates from Christian Brauner: "Features: - Fixup and improve NLM and kNFSD file lock callbacks Last year both GFS2 and OCFS2 had some work done to make their locking more robust when exported over NFS. Unfortunately, part of that work caused both NLM (for NFS v3 exports) and kNFSD (for NFSv4.1+ exports) to no longer send lock notifications to clients This in itself is not a huge problem because most NFS clients will still poll the server in order to acquire a conflicted lock It's important for NLM and kNFSD that they do not block their kernel threads inside filesystem's file_lock implementations because that can produce deadlocks. We used to make sure of this by only trusting that posix_lock_file() can correctly handle blocking lock calls asynchronously, so the lock managers would only setup their file_lock requests for async callbacks if the filesystem did not define its own lock() file operation However, when GFS2 and OCFS2 grew the capability to correctly handle blocking lock requests asynchronously, they started signalling this behavior with EXPORT_OP_ASYNC_LOCK, and the check for also trusting posix_lock_file() was inadvertently dropped, so now most filesystems no longer produce lock notifications when exported over NFS Fix this by using an fop_flag which greatly simplifies the problem and grooms the way for future uses by both filesystems and lock managers alike - Add a sysctl to delete the dentry when a file is removed instead of making it a negative dentry Commit 681ce8623567 ("vfs: Delete the associated dentry when deleting a file") introduced an unconditional deletion of the associated dentry when a file is removed. However, this led to performance regressions in specific benchmarks, such as ilebench.sum_operations/s, prompting a revert in commit 4a4be1ad3a6e ("Revert "vfs: Delete the associated dentry when deleting a file""). This reintroduces the concept conditionally through a sysctl - Expand the statmount() system call: * Report the filesystem subtype in a new fs_subtype field to e.g., report fuse filesystem subtypes * Report the superblock source in a new sb_source field * Add a new way to return filesystem specific mount options in an option array that returns filesystem specific mount options separated by zero bytes and unescaped. This allows caller's to retrieve filesystem specific mount options and immediately pass them to e.g., fsconfig() without having to unescape or split them * Report security (LSM) specific mount options in a separate security option array. We don't lump them together with filesystem specific mount options as security mount options are generic and most users aren't interested in them The format is the same as for the filesystem specific mount option array - Support relative paths in fsconfig()'s FSCONFIG_SET_STRING command - Optimize acl_permission_check() to avoid costly {g,u}id ownership checks if possible - Use smp_mb__after_spinlock() to avoid full smp_mb() in evict() - Add synchronous wakeup support for ep_poll_callback. Currently, epoll only uses wake_up() to wake up task. But sometimes there are epoll users which want to use the synchronous wakeup flag to give a hint to the scheduler, e.g., the Android binder driver. So add a wake_up_sync() define, and use wake_up_sync() when sync is true in ep_poll_callback() Fixes: - Fix kernel documentation for inode_insert5() and iget5_locked() - Annotate racy epoll check on file->f_ep - Make F_DUPFD_QUERY associative - Avoid filename buffer overrun in initramfs - Don't let statmount() return empty strings - Add a cond_resched() to dump_user_range() to avoid hogging the CPU - Don't query the device logical blocksize multiple times for hfsplus - Make filemap_read() check that the offset is positive or zero Cleanups: - Various typo fixes - Cleanup wbc_attach_fdatawrite_inode() - Add __releases annotation to wbc_attach_and_unlock_inode() - Add hugetlbfs tracepoints - Fix various vfs kernel doc parameters - Remove obsolete TODO comment from io_cancel() - Convert wbc_account_cgroup_owner() to take a folio - Fix comments for BANDWITH_INTERVAL and wb_domain_writeout_add() - Reorder struct posix_acl to save 8 bytes - Annotate struct posix_acl with __counted_by() - Replace one-element array with flexible array member in freevxfs - Use idiomatic atomic64_inc_return() in alloc_mnt_ns()" * tag 'vfs-6.13.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (35 commits) statmount: retrieve security mount options vfs: make evict() use smp_mb__after_spinlock instead of smp_mb statmount: add flag to retrieve unescaped options fs: add the ability for statmount() to report the sb_source writeback: wbc_attach_fdatawrite_inode out of line writeback: add a __releases annoation to wbc_attach_and_unlock_inode fs: add the ability for statmount() to report the fs_subtype fs: don't let statmount return empty strings fs:aio: Remove TODO comment suggesting hash or array usage in io_cancel() hfsplus: don't query the device logical block size multiple times freevxfs: Replace one-element array with flexible array member fs: optimize acl_permission_check() initramfs: avoid filename buffer overrun fs/writeback: convert wbc_account_cgroup_owner to take a folio acl: Annotate struct posix_acl with __counted_by() acl: Realign struct posix_acl to save 8 bytes epoll: Add synchronous wakeup support for ep_poll_callback coredump: add cond_resched() to dump_user_range mm/page-writeback.c: Fix comment of wb_domain_writeout_add() mm/page-writeback.c: Update comment for BANDWIDTH_INTERVAL ...
2024-11-12hfsplus: don't query the device logical block size multiple timesThadeu Lima de Souza Cascardo1-1/+2
Devices block sizes may change. One of these cases is a loop device by using ioctl LOOP_SET_BLOCK_SIZE. While this may cause other issues like IO being rejected, in the case of hfsplus, it will allocate a block by using that size and potentially write out-of-bounds when hfsplus_read_wrapper calls hfsplus_submit_bio and the latter function reads a different io_size. Using a new min_io_size initally set to sb_min_blocksize works for the purposes of the original fix, since it will be set to the max between HFSPLUS_SECTOR_SIZE and the first seen logical block size. We still use the max between HFSPLUS_SECTOR_SIZE and min_io_size in case the latter is not initialized. Tested by mounting an hfsplus filesystem with loop block sizes 512, 1024 and 4096. The produced KASAN report before the fix looks like this: [ 419.944641] ================================================================== [ 419.945655] BUG: KASAN: slab-use-after-free in hfsplus_read_wrapper+0x659/0xa0a [ 419.946703] Read of size 2 at addr ffff88800721fc00 by task repro/10678 [ 419.947612] [ 419.947846] CPU: 0 UID: 0 PID: 10678 Comm: repro Not tainted 6.12.0-rc5-00008-gdf56e0f2f3ca #84 [ 419.949007] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 [ 419.950035] Call Trace: [ 419.950384] <TASK> [ 419.950676] dump_stack_lvl+0x57/0x78 [ 419.951212] ? hfsplus_read_wrapper+0x659/0xa0a [ 419.951830] print_report+0x14c/0x49e [ 419.952361] ? __virt_addr_valid+0x267/0x278 [ 419.952979] ? kmem_cache_debug_flags+0xc/0x1d [ 419.953561] ? hfsplus_read_wrapper+0x659/0xa0a [ 419.954231] kasan_report+0x89/0xb0 [ 419.954748] ? hfsplus_read_wrapper+0x659/0xa0a [ 419.955367] hfsplus_read_wrapper+0x659/0xa0a [ 419.955948] ? __pfx_hfsplus_read_wrapper+0x10/0x10 [ 419.956618] ? do_raw_spin_unlock+0x59/0x1a9 [ 419.957214] ? _raw_spin_unlock+0x1a/0x2e [ 419.957772] hfsplus_fill_super+0x348/0x1590 [ 419.958355] ? hlock_class+0x4c/0x109 [ 419.958867] ? __pfx_hfsplus_fill_super+0x10/0x10 [ 419.959499] ? __pfx_string+0x10/0x10 [ 419.960006] ? lock_acquire+0x3e2/0x454 [ 419.960532] ? bdev_name.constprop.0+0xce/0x243 [ 419.961129] ? __pfx_bdev_name.constprop.0+0x10/0x10 [ 419.961799] ? pointer+0x3f0/0x62f [ 419.962277] ? __pfx_pointer+0x10/0x10 [ 419.962761] ? vsnprintf+0x6c4/0xfba [ 419.963178] ? __pfx_vsnprintf+0x10/0x10 [ 419.963621] ? setup_bdev_super+0x376/0x3b3 [ 419.964029] ? snprintf+0x9d/0xd2 [ 419.964344] ? __pfx_snprintf+0x10/0x10 [ 419.964675] ? lock_acquired+0x45c/0x5e9 [ 419.965016] ? set_blocksize+0x139/0x1c1 [ 419.965381] ? sb_set_blocksize+0x6d/0xae [ 419.965742] ? __pfx_hfsplus_fill_super+0x10/0x10 [ 419.966179] mount_bdev+0x12f/0x1bf [ 419.966512] ? __pfx_mount_bdev+0x10/0x10 [ 419.966886] ? vfs_parse_fs_string+0xce/0x111 [ 419.967293] ? __pfx_vfs_parse_fs_string+0x10/0x10 [ 419.967702] ? __pfx_hfsplus_mount+0x10/0x10 [ 419.968073] legacy_get_tree+0x104/0x178 [ 419.968414] vfs_get_tree+0x86/0x296 [ 419.968751] path_mount+0xba3/0xd0b [ 419.969157] ? __pfx_path_mount+0x10/0x10 [ 419.969594] ? kmem_cache_free+0x1e2/0x260 [ 419.970311] do_mount+0x99/0xe0 [ 419.970630] ? __pfx_do_mount+0x10/0x10 [ 419.971008] __do_sys_mount+0x199/0x1c9 [ 419.971397] do_syscall_64+0xd0/0x135 [ 419.971761] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 419.972233] RIP: 0033:0x7c3cb812972e [ 419.972564] Code: 48 8b 0d f5 46 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c2 46 0d 00 f7 d8 64 89 01 48 [ 419.974371] RSP: 002b:00007ffe30632548 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 419.975048] RAX: ffffffffffffffda RBX: 00007ffe306328d8 RCX: 00007c3cb812972e [ 419.975701] RDX: 0000000020000000 RSI: 0000000020000c80 RDI: 00007ffe306325d0 [ 419.976363] RBP: 00007ffe30632720 R08: 00007ffe30632610 R09: 0000000000000000 [ 419.977034] R10: 0000000000200008 R11: 0000000000000286 R12: 0000000000000000 [ 419.977713] R13: 00007ffe306328e8 R14: 00005a0eb298bc68 R15: 00007c3cb8356000 [ 419.978375] </TASK> [ 419.978589] Fixes: 6596528e391a ("hfsplus: ensure bio requests are not smaller than the hardware sectors") Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com> Link: https://lore.kernel.org/r/20241107114109.839253-1-cascardo@igalia.com Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-10-08hfsplus: convert hfsplus to use the new mount apiEric Sandeen1-2/+2
Convert the hfsplus filesystem to use the new mount API. Tested by comparing random mount & remount options before and after the change. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Link: https://lore.kernel.org/r/20240916172735.866916-6-sandeen@redhat.com Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-08-07fs: Convert aops->write_begin to take a folioMatthew Wilcox (Oracle)1-1/+1
Convert all callers from working on a page to working on one page of a folio (support for working on an entire folio can come later). Removes a lot of folio->page->folio conversions. Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-06-21hfsplus: fix to avoid false alarm of circular lockingChao Yu1-0/+21
Syzbot report potential ABBA deadlock as below: loop0: detected capacity change from 0 to 1024 ====================================================== WARNING: possible circular locking dependency detected 6.9.0-syzkaller-10323-g8f6a15f095a6 #0 Not tainted ------------------------------------------------------ syz-executor171/5344 is trying to acquire lock: ffff88807cb980b0 (&tree->tree_lock){+.+.}-{3:3}, at: hfsplus_file_truncate+0x811/0xb50 fs/hfsplus/extents.c:595 but task is already holding lock: ffff88807a930108 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_truncate+0x2da/0xb50 fs/hfsplus/extents.c:576 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752 hfsplus_file_extend+0x21b/0x1b70 fs/hfsplus/extents.c:457 hfsplus_bmap_reserve+0x105/0x4e0 fs/hfsplus/btree.c:358 hfsplus_rename_cat+0x1d0/0x1050 fs/hfsplus/catalog.c:456 hfsplus_rename+0x12e/0x1c0 fs/hfsplus/dir.c:552 vfs_rename+0xbdb/0xf00 fs/namei.c:4887 do_renameat2+0xd94/0x13f0 fs/namei.c:5044 __do_sys_rename fs/namei.c:5091 [inline] __se_sys_rename fs/namei.c:5089 [inline] __x64_sys_rename+0x86/0xa0 fs/namei.c:5089 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&tree->tree_lock){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain+0x18cb/0x58e0 kernel/locking/lockdep.c:3869 __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752 hfsplus_file_truncate+0x811/0xb50 fs/hfsplus/extents.c:595 hfsplus_setattr+0x1ce/0x280 fs/hfsplus/inode.c:265 notify_change+0xb9d/0xe70 fs/attr.c:497 do_truncate+0x220/0x310 fs/open.c:65 handle_truncate fs/namei.c:3308 [inline] do_open fs/namei.c:3654 [inline] path_openat+0x2a3d/0x3280 fs/namei.c:3807 do_filp_open+0x235/0x490 fs/namei.c:3834 do_sys_openat2+0x13e/0x1d0 fs/open.c:1406 do_sys_open fs/open.c:1421 [inline] __do_sys_creat fs/open.c:1497 [inline] __se_sys_creat fs/open.c:1491 [inline] __x64_sys_creat+0x123/0x170 fs/open.c:1491 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&HFSPLUS_I(inode)->extents_lock); lock(&tree->tree_lock); lock(&HFSPLUS_I(inode)->extents_lock); lock(&tree->tree_lock); This is a false alarm as tree_lock mutex are different, one is from sbi->cat_tree, and another is from sbi->ext_tree: Thread A Thread B - hfsplus_rename - hfsplus_rename_cat - hfs_find_init - mutext_lock(cat_tree->tree_lock) - hfsplus_setattr - hfsplus_file_truncate - mutex_lock(hip->extents_lock) - hfs_find_init - mutext_lock(ext_tree->tree_lock) - hfs_bmap_reserve - hfsplus_file_extend - mutex_lock(hip->extents_lock) So, let's call mutex_lock_nested for tree_lock mutex lock, and pass correct lock class for it. Fixes: 31651c607151 ("hfsplus: avoid deadlock on file truncation") Reported-by: syzbot+6030b3b1b9bf70e538c4@syzkaller.appspotmail.com Closes: https://lore.kernel.org/linux-fsdevel/000000000000e37a4005ef129563@google.com Cc: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Signed-off-by: Chao Yu <chao@kernel.org> Link: https://lore.kernel.org/r/20240607142304.455441-1-chao@kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-02-25hfsplus: switch to rcu-delayed unloading of nls and freeing ->s_fs_infoAl Viro1-0/+1
->d_hash() and ->d_compare() use those, so we need to delay freeing them. Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2023-01-19fs: port ->fileattr_set() to pass mnt_idmapChristian Brauner1-1/+1
Convert to struct mnt_idmap. Last cycle we merged the necessary infrastructure in 256c8aed2b42 ("fs: introduce dedicated idmap type for mounts"). This is just the conversion to struct mnt_idmap. Currently we still pass around the plain namespace that was attached to a mount. This is in general pretty convenient but it makes it easy to conflate namespaces that are relevant on the filesystem with namespaces that are relevent on the mount level. Especially for non-vfs developers without detailed knowledge in this area this can be a potential source for bugs. Once the conversion to struct mnt_idmap is done all helpers down to the really low-level helpers will take a struct mnt_idmap argument instead of two namespace arguments. This way it becomes impossible to conflate the two eliminating the possibility of any bugs. All of the vfs and all filesystems only operate on struct mnt_idmap. Acked-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
2023-01-19fs: port ->getattr() to pass mnt_idmapChristian Brauner1-1/+1
Convert to struct mnt_idmap. Last cycle we merged the necessary infrastructure in 256c8aed2b42 ("fs: introduce dedicated idmap type for mounts"). This is just the conversion to struct mnt_idmap. Currently we still pass around the plain namespace that was attached to a mount. This is in general pretty convenient but it makes it easy to conflate namespaces that are relevant on the filesystem with namespaces that are relevent on the mount level. Especially for non-vfs developers without detailed knowledge in this area this can be a potential source for bugs. Once the conversion to struct mnt_idmap is done all helpers down to the really low-level helpers will take a struct mnt_idmap argument instead of two namespace arguments. This way it becomes impossible to conflate the two eliminating the possibility of any bugs. All of the vfs and all filesystems only operate on struct mnt_idmap. Acked-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
2022-12-12hfsplus: fix bug causing custom uid and gid being unable to be assigned with ↵Aditya Garg1-0/+2
mount Despite specifying UID and GID in mount command, the specified UID and GID were not being assigned. This patch fixes this issue. Link: https://lkml.kernel.org/r/C0264BF5-059C-45CF-B8DA-3A3BD2C803A2@live.com Signed-off-by: Aditya Garg <gargaditya08@live.com> Reviewed-by: Viacheslav Dubeyko <slava@dubeyko.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-14fs/hfsplus: Use the enum req_op and blk_opf_t typesBart Van Assche1-1/+1
Improve static type checking by using the enum req_op type for variables that represent a request operation and the new blk_opf_t type for variables that represent request flags. Combine the last two hfsplus_submit_bio() arguments into a single argument. Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Link: https://lore.kernel.org/r/20220714180729.1065367-55-bvanassche@acm.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-05-08hfsplus: Call hfsplus_write_begin() and generic_write_end() directlyMatthew Wilcox (Oracle)1-0/+2
There is only one kind of write_begin/write_end aops, so we don't need to look up which aop it is, just make hfsplus_write_begin() available to this file and call it directly. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2021-04-12hfsplus: convert to fileattrMiklos Szeredi1-11/+3
Use the fileattr API to let the VFS handle locking, permission checking and conversion. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2021-01-24fs: make helpers idmap mount awareChristian Brauner1-2/+3
Extend some inode methods with an additional user namespace argument. A filesystem that is aware of idmapped mounts will receive the user namespace the mount has been marked with. This can be used for additional permission checking and also to enable filesystems to translate between uids and gids if they need to. We have implemented all relevant helpers in earlier patches. As requested we simply extend the exisiting inode method instead of introducing new ones. This is a little more code churn but it's mostly mechanical and doesnt't leave us with additional inode methods. Link: https://lore.kernel.org/r/20210121131959.646623-25-christian.brauner@ubuntu.com Cc: Christoph Hellwig <hch@lst.de> Cc: David Howells <dhowells@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: linux-fsdevel@vger.kernel.org Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
2020-10-30fs: Replace zero-length array with flexible-array memberGustavo A. R. Silva1-1/+1
There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://www.kernel.org/doc/html/v5.9-rc1/process/deprecated.html#zero-length-and-one-element-arrays Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2019-12-18hfs/hfsplus: use 64-bit inode timestampsArnd Bergmann1-5/+23
The interpretation of on-disk timestamps in HFS and HFS+ differs between 32-bit and 64-bit kernels at the moment. Use 64-bit timestamps consistently so apply the current 64-bit behavior everyhere. According to the official documentation for HFS+ [1], inode timestamps are supposed to cover the time range from 1904 to 2040 as originally used in classic MacOS. The traditional Linux usage is to convert the timestamps into an unsigned 32-bit number based on the Unix epoch and from there to a time_t. On 32-bit systems, that wraps the time from 2038 to 1902, so the last two years of the valid time range become garbled. On 64-bit systems, all times before 1970 get turned into timestamps between 2038 and 2106, which is more convenient but also different from the documented behavior. Looking at the Darwin sources [2], it seems that MacOS is inconsistent in yet another way: all timestamps are wrapped around to a 32-bit unsigned number when written to the disk, but when read back, all numeric values lower than 2082844800U are assumed to be invalid, so we cannot represent the times before 1970 or the times after 2040. While all implementations seem to agree on the interpretation of values between 1970 and 2038, they often differ on the exact range they support when reading back values outside of the common range: MacOS (traditional): 1904-2040 Apple Documentation: 1904-2040 MacOS X source comments: 1970-2040 MacOS X source code: 1970-2038 32-bit Linux: 1902-2038 64-bit Linux: 1970-2106 hfsfuse: 1970-2040 hfsutils (32 bit, old libc) 1902-2038 hfsutils (32 bit, new libc) 1970-2106 hfsutils (64 bit) 1904-2040 hfsplus-utils 1904-2040 hfsexplorer 1904-2040 7-zip 1904-2040 Out of the above, the range from 1970 to 2106 seems to be the most useful, as it allows using HFS and HFS+ beyond year 2038, and this matches the behavior that most users would see today on Linux, as few people run 32-bit kernels any more. Link: [1] https://developer.apple.com/library/archive/technotes/tn/tn1150.html Link: [2] https://opensource.apple.com/source/hfs/hfs-407.30.1/core/MacOSStubs.c.auto.html Link: https://lore.kernel.org/lkml/20180711224625.airwna6gzyatoowe@eaf/ Suggested-by: "Ernesto A. Fernández" <ernesto.mnd.fernandez@gmail.com> Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com> Reviewed-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- v3: revert back to 1970-2106 time range fix bugs found in review merge both patches into one drop cc:stable tag v2: treat pre-1970 dates as invalid following MacOS X behavior, reword and expand changelog text
2019-01-05hfsplus: return file attributes on statxErnesto A. Fernández1-0/+2
The immutable, append-only and no-dump attributes can only be retrieved with an ioctl; implement the ->getattr() method to return them on statx. Do not return the inode birthtime yet, because the issue of how best to handle the post-2038 timestamps is still under discussion. This patch is needed to pass xfstests generic/424. Link: http://lkml.kernel.org/r/20181014163558.sxorxlzjqccq2lpw@eaf Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Cc: Viacheslav Dubeyko <slava@dubeyko.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31hfsplus: prevent btree data loss on ENOSPCErnesto A. Fernández1-0/+2
Inserting or deleting a record in a btree may require splitting several of its nodes. If we hit ENOSPC halfway through, the new nodes will be left orphaned and their records will be lost. This could mean lost inodes, extents or xattrs. Henceforth, check the available disk space before making any changes. This still leaves the potential problem of corruption on ENOMEM. The patch can be tested with xfstests generic/027. Link: http://lkml.kernel.org/r/4596eef22fbda137b4ffa0272d92f0da15364421.1536269129.git.ernesto.mnd.fernandez@gmail.com Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-22hfsplus: drop ACL supportErnesto A. Fernández1-1/+0
The HFS+ Access Control Lists have not worked at all for the past five years, and nobody seems to have noticed. Besides, POSIX draft ACLs are not compatible with MacOS. Drop the feature entirely. Link: http://lkml.kernel.org/r/20180714190608.wtnmmtjqeyladkut@eaf Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Viacheslav Dubeyko <slava@dubeyko.com> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-07hfsplus: honor setgid flag on directoriesErnesto A. Fernandez1-1/+2
When creating a file inside a directory that has the setgid flag set, give the new file the group ID of the parent, and also the setgid flag if it is a directory itself. Link: http://lkml.kernel.org/r/20171204192705.GA6101@debian.home Signed-off-by: Ernesto A. Fernandez <ernesto.mnd.fernandez@gmail.com> Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman1-0/+1
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-07Merge branch 'for-linus-2' of ↵Linus Torvalds1-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull more vfs updates from Al Viro: "Assorted cleanups and fixes. In the "trivial API change" department - ->d_compare() losing 'parent' argument" * 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: cachefiles: Fix race between inactivating and culling a cache object 9p: use clone_fid() 9p: fix braino introduced in "9p: new helper - v9fs_parent_fid()" vfs: make dentry_needs_remove_privs() internal vfs: remove file_needs_remove_privs() vfs: fix deadlock in file_remove_privs() on overlayfs get rid of 'parent' argument of ->d_compare() cifs, msdos, vfat, hfs+: don't bother with parent in ->d_compare() affs ->d_compare(): don't bother with ->d_inode fold _d_rehash() and __d_rehash() together fold dentry_rcuwalk_invalidate() into its only remaining caller
2016-08-06Merge branch 'work.const-qstr' of ↵Linus Torvalds1-5/+5
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull qstr constification updates from Al Viro: "Fairly self-contained bunch - surprising lot of places passes struct qstr * as an argument when const struct qstr * would suffice; it complicates analysis for no good reason. I'd prefer to feed that separately from the assorted fixes (those are in #for-linus and with somewhat trickier topology)" * 'work.const-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: qstr: constify instances in adfs qstr: constify instances in lustre qstr: constify instances in f2fs qstr: constify instances in ext2 qstr: constify instances in vfat qstr: constify instances in procfs qstr: constify instances in fuse qstr constify instances in fs/dcache.c qstr: constify instances in nfs qstr: constify instances in ocfs2 qstr: constify instances in autofs4 qstr: constify instances in hfs qstr: constify instances in hfsplus qstr: constify instances in logfs qstr: constify dentry_init_security
2016-07-31get rid of 'parent' argument of ->d_compare()Al Viro1-2/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-07-21qstr: constify instances in hfsplusAl Viro1-5/+5
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-06-07hfsplus: use bio op accessorsMike Christie1-1/+1
Separate the op from the rq_flag_bits and have gfs2 set/get the bio using bio_set_op_attrs/bio_op. Signed-off-by: Mike Christie <mchristi@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-05-13hfsplus: switch to ->iterate_shared()Al Viro1-0/+1
We need to protect the list of hfsplus_readdir_data against parallel insertions (in readdir) and removals (in release). Add a spinlock for that. Note that it has nothing to do with protection of hfsplus_readdir_data->key - we have an exclusion between hfsplus_readdir() and hfsplus_delete_cat() on directory lock and between several hfsplus_readdir() for the same struct file on ->f_pos_lock. The spinlock is strictly for list changes. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-06-24fs: cleanup slight list_entry abuseRasmus Villemoes1-1/+1
list_entry is just a wrapper for container_of, but it is arguably wrong (and slightly confusing) to use it when the pointed-to struct member is not a struct list_head. Use container_of directly instead. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-12-19hfsplus: fix longname handlingSougata Santra1-1/+3
Longname is not correctly handled by hfsplus driver. If an attempt to create a longname(>255) file/directory is made, it succeeds by creating a file/directory with HFSPLUS_MAX_STRLEN and incorrect catalog key. Thus leaving the volume in an inconsistent state. This patch fixes this issue. Although lookup is always called first to create a negative entry, so just doing a check in lookup would probably fix this issue. I choose to propagate error to other iops as well. Please NOTE: I have factored out hfsplus_cat_build_key_with_cnid from hfsplus_cat_build_key, to avoid unncessary branching. Thanks a lot. TEST: ------ dir="TEST_DIR" cdir=`pwd` name255="_123456789_123456789_123456789_123456789_123456789_123456789\ _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ _123456789_123456789_123456789_123456789_123456789_1234" name256="${name255}5" mkdir $dir cd $dir touch $name255 rm -f $name255 touch $name256 ls -la cd $cdir rm -rf $dir RESULT: ------- [sougata@ultrabook tmp]$ cdir=`pwd` [sougata@ultrabook tmp]$ name255="_123456789_123456789_123456789_123456789_123456789_123456789\ > _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ > _123456789_123456789_123456789_123456789_123456789_123456789_123456789\ > _123456789_123456789_123456789_123456789_123456789_1234" [sougata@ultrabook tmp]$ name256="${name255}5" [sougata@ultrabook tmp]$ [sougata@ultrabook tmp]$ mkdir $dir [sougata@ultrabook tmp]$ cd $dir [sougata@ultrabook TEST_DIR]$ touch $name255 [sougata@ultrabook TEST_DIR]$ rm -f $name255 [sougata@ultrabook TEST_DIR]$ touch $name256 [sougata@ultrabook TEST_DIR]$ ls -la ls: cannot access _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_1234: No such file or directory total 0 drwxrwxr-x 1 sougata sougata 3 Feb 20 19:56 . drwxrwxrwx 1 root root 6 Feb 20 19:56 .. -????????? ? ? ? ? ? _123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789_1234 [sougata@ultrabook TEST_DIR]$ cd $cdir [sougata@ultrabook tmp]$ rm -rf $dir rm: cannot remove `TEST_DIR': Directory not empty -ENAMETOOLONG returned from hfsplus_asc2uni was not propaged to iops. This allowed hfsplus to create files/directories with HFSPLUS_MAX_STRLEN and incorrect keys, leaving the FS in an inconsistent state. This patch fixes this issue. Signed-off-by: Sougata Santra <sougata@tuxera.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-07hfsplus: coding style fix for declarations in hfsplus_fs.hSergei Antonov1-96/+107
Some function declarations in hfsplus_fs.h were with argument names, some without, and some were mixed. This patch adds argument names everywhere, sorts function in order they go in .c files, and moves hfs_part_find() to a proper section. Auto-formatting and sorting was done with: cfunctions *.c | indent -linux | sed "s| \* | \*|" Signed-off-by: Sergei Antonov <saproj@gmail.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-07hfsplus: fix "unused node is not erased" errorSergei Antonov1-1/+2
Zero newly allocated extents in the catalog tree if volume attributes tell us to. Not doing so we risk getting the "unused node is not erased" error. See kHFSUnusedNodeFix flag in Apple's source code for reference. There was a previous commit clearing the node when it is freed: commit 899bed05e9f6 ("hfsplus: fix issue with unzeroed unused b-tree nodes"). But it did not handle newly allocated extents (this patch fixes it). And it zeroed nodes in all trees unconditionally which is an overkill. This patch adds a condition and also switches to 'tree->node_size' as a simpler method of getting the length to zero. Signed-off-by: Sergei Antonov <saproj@gmail.com> Cc: Anton Altaparmakov <aia21@cam.ac.uk> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Kyle Laracey <kalaracey@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-07hfsplus: remove unused routine hfsplus_attr_build_key_uniHin-Tak Leung1-3/+0
The directory/file catalog b-tree equivalent, hfsplus_build_key_uni(), is used by hfsplus_find_cat() for internal referencing between catalog records. There is no corresponding usage for attributes - attribute records do not refer to one another. Signed-off-by: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Sougata Santra <sougata@tuxera.com> Cc: Anton Altaparmakov <anton@tuxera.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-04fs/hfsplus/attributes.c: add __init to hfsplus_create_attr_tree_cache()Fabian Frederick1-1/+1
hfsplus_create_attr_tree_cache is only called by __init init_hfsplus_fs Signed-off-by: Fabian Frederick <fabf@skynet.be> Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-03-11hfsplus: add HFSX subfolder count supportSergei Antonov1-0/+1
Adds support for HFSX 'HasFolderCount' flag and a corresponding 'folderCount' field in folder records. (For reference see HFS_FOLDERCOUNT and kHFSHasFolderCountBit/kHFSHasFolderCountMask in Apple's source code.) Ignoring subfolder count leads to fs errors found by Mac: ... Checking catalog hierarchy. HasFolderCount flag needs to be set (id = 105) (It should be 0x10 instead of 0) Incorrect folder count in a directory (id = 2) (It should be 7 instead of 6) ... Steps to reproduce: Format with "newfs_hfs -s /dev/diskXXX". Mount in Linux. Create a new directory in root. Unmount. Run "fsck_hfs /dev/diskXXX". The patch handles directory creation, deletion, and rename. Signed-off-by: Sergei Antonov <saproj@gmail.com> Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-13hfsplus: implement attributes file creation functionalityVyacheslav Dubeyko1-0/+9
Implement functionality of creation AttributesFile metadata file on HFS+ volume in the case of absence of it. It makes trying to open AttributesFile's B-tree during mount of HFS+ volume. If HFS+ volume hasn't AttributesFile then a pointer on AttributesFile's B-tree keeps as NULL. Thereby, when it is discovered absence of AttributesFile on HFS+ volume in the begin of xattr creation operation then AttributesFile will be created. The creation of AttributesFile will have success in the case of availability (2 * clump) free blocks on HFS+ volume. Otherwise, creation operation is ended with error (-ENOSPC). Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Acked-by: Hin-Tak Leung <htl10@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-13hfsplus: add metadata file's clump size calculation functionalityVyacheslav Dubeyko1-0/+1
There are situation when HFS+ volume had been created without AttributesFile. Such situation can take place because of using old mkfs.hfs utility or creation HFS+ volume without taking in mind necessity to use xattrs. For example, Mac OS X 10.4 (Tiger) doesn't create AttributesFile during mkfs phase. Also it is a very frequent situation for the case of users that created HFS+ volumes under Linux. As a result, xattrs and POSIX ACLs on HFS+ volume are unavailable for such users. This patchset implements functionality of AttributesFile creation on HFS+ volume in the case of this metadata file absence during operation of xattr creation. This patch: Add functionality of metadata file's clump size calculation. Operation of AttributesFile creation needs in clump size setting. This value will be used when AttributesFile will be extended. This code is adopted from code of newfs_hfs utility of diskdev_cmds packet http://opensource.apple.com/tarballs/diskdev_cmds/. Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-12hfsplus: add necessary declarations for POSIX ACLs supportVyacheslav Dubeyko1-0/+1
This patchset implements POSIX ACLs support in hfsplus driver. Mac OS X beginning with version 10.4 ("Tiger") support NFSv4 ACLs, which are part of the NFSv4 standard. HFS+ stores ACLs in the form of specially named extended attributes (com.apple.system.Security). But this patchset doesn't use "com.apple.system.Security" extended attributes. It implements support of POSIX ACLs in the form of extended attributes with names "system.posix_acl_access" and "system.posix_acl_default". These xattrs are treated only under Linux. POSIX ACLs doesn't mean something under Mac OS X. Thereby, this patch set provides opportunity to use POSIX ACLs under Linux on HFS+ filesystem. This patch: Add CONFIG_HFSPLUS_FS_POSIX_ACL kernel configuration option, DBG_ACL_MOD debugging flag and acl.h file with declaration of essential functions for support POSIX ACLs in hfsplus driver. Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-06-29Don't pass inode to ->d_hash() and ->d_compare()Linus Torvalds1-5/+2
Instances either don't look at it at all (the majority of cases) or only want it to find the superblock (which can be had as dentry->d_sb). A few cases that want more are actually safe with dentry->d_inode - the only precaution needed is the check that it hadn't been replaced with NULL by rmdir() or by overwriting rename(), which case should be simply treated as cache miss. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-01hfs/hfsplus: convert printks to pr_<level>Joe Perches1-8/+14
Use a more current logging style. Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt hfsplus now uses "hfsplus: " for all messages. Coalesce formats. Prefix debugging messages too. Signed-off-by: Joe Perches <joe@perches.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-05-01hfs/hfsplus: convert dprint to hfs_dbgJoe Perches1-3/+11
Use a more current logging style. Rename macro and uses. Add do {} while (0) to macro. Add DBG_ to macro. Add and use hfs_dbg_cont variant where appropriate. Signed-off-by: Joe Perches <joe@perches.com> Cc: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-28hfsplus: add support of manipulation by attributes fileVyacheslav Dubeyko1-9/+43
Add support of manipulation by attributes file. Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> Reported-by: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-21hfsplus: rework processing of hfs_btree_write() returned errorVyacheslav Dubeyko1-1/+1
Add to hfs_btree_write() a return of -EIO on failure of b-tree node searching. Also add logic ofor processing errors from hfs_btree_write() in hfsplus_system_write_inode() with a message about b-tree writing failure. [akpm@linux-foundation.org: reduce scope of `err', print errno on error] Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Hin-Tak Leung <htl10@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-09-21userns: Convert hfsplus to use kuid and kgid where appropriateEric W. Biederman1-2/+2
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2012-07-22hfsplus: get rid of write_superArtem Bityutskiy1-1/+5
This patch makes hfsplus stop using the VFS '->write_super()' method along with the 's_dirt' superblock flag, because they are on their way out. The whole "superblock write-out" VFS infrastructure is served by the 'sync_supers()' kernel thread, which wakes up every 5 (by default) seconds and writes out all dirty superblocks using the '->write_super()' call-back. But the problem with this thread is that it wastes power by waking up the system every 5 seconds, even if there are no diry superblocks, or there are no client file-systems which would need this (e.g., btrfs does not use '->write_super()'). So we want to kill it completely and thus, we need to make file-systems to stop using the '->write_super()' VFS service, and then remove it together with the kernel thread. Tested using fsstress from the LTP project. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-07-22hfsplus: make hfsplus_sync_fs staticArtem Bityutskiy1-1/+0
... because it is used only in fs/hfsplus/super.c. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-03-21hfsplus: add an ioctl to bless filesMatthew Garrett1-0/+5
Making an hfsplus partition bootable requires the ability to "bless" a file by putting its inode number in the volume header. Doing this from userspace on a mounted filesystem is impractical since the kernel will write back the original values on unmount. Add an ioctl to allow userspace to update the volume header information based on the target file. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-07vfs: switch ->show_options() to struct dentry *Al Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04hfsplus: propagate umode_tAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-07-23Merge branch 'for-linus' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (107 commits) vfs: use ERR_CAST for err-ptr tossing in lookup_instantiate_filp isofs: Remove global fs lock jffs2: fix IN_DELETE_SELF on overwriting rename() killing a directory fix IN_DELETE_SELF on overwriting rename() on ramfs et.al. mm/truncate.c: fix build for CONFIG_BLOCK not enabled fs:update the NOTE of the file_operations structure Remove dead code in dget_parent() AFS: Fix silly characters in a comment switch d_add_ci() to d_splice_alias() in "found negative" case as well simplify gfs2_lookup() jfs_lookup(): don't bother with . or .. get rid of useless dget_parent() in btrfs rename() and link() get rid of useless dget_parent() in fs/btrfs/ioctl.c fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers drivers: fix up various ->llseek() implementations fs: handle SEEK_HOLE/SEEK_DATA properly in all fs's that define their own llseek Ext4: handle SEEK_HOLE/SEEK_DATA generically Btrfs: implement our own ->llseek fs: add SEEK_HOLE and SEEK_DATA flags reiserfs: make reiserfs default to barrier=flush ... Fix up trivial conflicts in fs/xfs/linux-2.6/xfs_super.c due to the new shrinker callout for the inode cache, that clashed with the xfs code to start the periodic workers later.
2011-07-22hfsplus: ensure bio requests are not smaller than the hardware sectorsSeth Forshee1-2/+14
Currently all bio requests are 512 bytes, which may fail for media whose physical sector size is larger than this. Ensure these requests are not smaller than the block device logical block size. BugLink: http://bugs.launchpad.net/bugs/734883 Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2011-07-21fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlersJosef Bacik1-1/+2
Btrfs needs to be able to control how filemap_write_and_wait_range() is called in fsync to make it less of a painful operation, so push down taking i_mutex and the calling of filemap_write_and_wait() down into the ->fsync() handlers. Some file systems can drop taking the i_mutex altogether it seems, like ext3 and ocfs2. For correctness sake I just pushed everything down in all cases to make sure that we keep the current behavior the same for everybody, and then each individual fs maintainer can make up their mind about what to do from there. Thanks, Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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