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path: root/fs/bcachefs/disk_groups.c
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* bcachefs: Fix potential sleeping during mountDaniel J Blueman2023-11-141-0/+2
| | | | | | | | | During mount, bcachefs mount option processing may sleep while allocating a string buffer. Fix this by reference counting in order to take the atomic path. Signed-off-by: Daniel J Blueman <daniel@quora.org> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: make bch2_target_to_text_sb staticJiapeng Chong2023-11-131-1/+1
| | | | | | | | | | | | The bch2_target_to_text_sb are not used outside the file disk_groups.c, so the modification is defined as static. fs/bcachefs/disk_groups.c:583:6: warning: no previous prototype for ‘bch2_target_to_text_sb’. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7144 Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
* bcachefs: bch2_disk_path_to_text() no longer takes sb_lockKent Overstreet2023-10-311-5/+54
| | | | | | | | | | | | | We're going to be using bch2_target_to_text() -> bch2_disk_path_to_text() from bch2_bkey_ptrs_to_text() and bch2_bkey_ptrs_invalid(), which can be called in any context. This patch adds the actual label to bch_disk_group_cpu so that it can be used by bch2_disk_path_to_text, and splits out bch2_disk_path_to_text() into two variants - like the previous patch, one for when we have a running filesystem and another for when we only have a superblock. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: Split apart bch2_target_to_text(), bch2_target_to_text_sb()Kent Overstreet2023-10-311-37/+58
| | | | | | | | | | Previously we just had bch2_opt_target_to_text() which could be passed either a filesystem object or just a superblock - depending on if we have a running filesystem or not. Split these into two functions for clarity. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: bch2_sb_field_get() refactoringKent Overstreet2023-10-221-6/+6
| | | | | | | Instead of using token pasting to generate methods for each superblock section, just make the type a parameter to bch2_sb_field_get(). Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: Use struct_size()Christophe JAILLET2023-10-221-2/+1
| | | | | | | | | | | | | | Use struct_size() instead of hand writing it. This is less verbose and more robust. While at it, prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: New superblock section members_v2Hunter Shaffer2023-10-221-1/+1
| | | | | | | | | | | members_v2 has dynamically resizable entries so that we can extend bch_member. The members can no longer be accessed with simple array indexing Instead members_v2_get is used to find a member's exact location within the array and returns a copy of that member. Alternatively member_v2_get_mut retrieves a mutable point to a member. Signed-off-by: Hunter Shaffer <huntershaffer182456@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: Add new helper to retrieve bch_member from sbHunter Shaffer2023-10-221-13/+9
| | | | | | | | Prep work for introducing bch_sb_field_members_v2 - introduce new helpers that will check for members_v2 if it exists, otherwise using v1 Signed-off-by: Hunter Shaffer <huntershaffer182456@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: Fix W=12 build errorsKent Overstreet2023-10-221-6/+6
| | | | Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: remove redundant initialization of pointer dstColin Ian King2023-10-221-2/+1
| | | | | | | | | | | | | The pointer dst is being initialized with a value that is never read, it is being re-assigned later on when it is used in a while-loop The initialization is redundant and can be removed. Cleans up clang-scan build warning: fs/bcachefs/disk_groups.c:186:30: warning: Value stored to 'dst' during its initialization is never read [deadcode.DeadStores] Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: sb-members.cKent Overstreet2023-10-221-0/+1
| | | | | | | Split out a new file for bch_sb_field_members - we'll likely want to move more code here in the future. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: bch_opt_fnKent Overstreet2023-10-221-7/+14
| | | | | | Minor refactoring to get rid of some unneeded token pasting. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: push rcu lock down into bch2_target_to_mask()Brian Foster2023-10-221-3/+13
| | | | | | | | | | We have one caller that cycles the rcu lock solely for this call (via target_rw_devs()), and we'd like to add another. Simplify things by pushing the rcu lock down into bch2_target_to_mask(), similar to how bch2_dev_in_target() works. Signed-off-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: create internal disk_groups sysfs fileBrian Foster2023-10-221-0/+34
| | | | | | | | | | We have bch2_sb_disk_groups_to_text() to dump disk group labels, but no good information on device group membership at runtime. Add bch2_disk_groups_to_text() and an associated 'disk_groups' sysfs file to print group and device relationships. Signed-off-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: Private error codes: ENOMEMKent Overstreet2023-10-221-2/+2
| | | | | | | This adds private error codes for most (but not all) of our ENOMEM uses, which makes it easier to track down assorted allocation failures. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: More errcode cleanupKent Overstreet2023-10-221-7/+6
| | | | | | | | We shouldn't be overloading standard error codes now that we have provisions for bcachefs-specific errorcodes: this patch converts super.c and super-io.c to per error site errcodes, with a bit of cleanup. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: Add private error codes for ENOSPCKent Overstreet2023-10-221-1/+1
| | | | | | | | | | Continuing the saga of introducing private dedicated error codes for each error path, this patch converts ENOSPC to error codes that are subtypes of ENOSPC. We've recently had a test failure where we got -ENOSPC where we shouldn't have, and didn't have enough information to tell where it came from, so this patch will solve that problem. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: Fix adding a device with a labelKent Overstreet2023-10-221-13/+15
| | | | | | | Device labels are represented as pointers in the member info section: we need to get and then set the label for it to be kept correctly. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
* bcachefs: Printbuf reworkKent Overstreet2023-10-221-17/+17
| | | | | | | This converts bcachefs to the modern printbuf interface/implementation, synced with the version to be submitted upstream. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: Convert bch2_sb_to_text to master option listKent Overstreet2023-10-221-49/+38
| | | | | | | | | Options no longer have to be manually added to bch2_sb_to_text() - it now uses the master list of options in opts.h. Also, improve some of the formatting by converting it to tabstops. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: Add .to_text() methods for all superblock sectionsKent Overstreet2023-10-221-6/+34
| | | | | | | | | This patch improves the superblock .to_text() methods and adds methods for all types that were missing them. It also improves printbufs by allowing them to specfiy what units we want to be printing in, and adds new wrapper methods for unifying our kernel and userspace environments. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
* bcachefs: Kill bch_scnmemcpy()Kent Overstreet2023-10-221-5/+4
| | | | | | | | bch_scnmemcpy was for printing length-limited strings that might not have a terminating null - turns out sprintf & pr_buf can do this with %.*s. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
* bcachefs: Improved superblock-related error messagesKent Overstreet2023-10-221-29/+33
| | | | | | | | | | | | | This patch converts bch2_sb_validate() and the .validate methods for the various superblock sections to take printbuf, to which they can print detailed error messages, including printing the entire section that was invalid. This is a great improvement over the previous situation, where we could only return static strings that didn't have precise information about what was wrong. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
* bcachefs: Fix a couple null ptr derefs when no disk groups existKent Overstreet2023-10-221-2/+2
| | | | | | | | | Normally successfully parsing a target means disk groups should exist, but we don't want a BUG() or null ptr deref if we end up with an invalid target. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: Fix disk groups not being updated when set via sysfsKent Overstreet2023-10-221-1/+6
| | | | | Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: revamp to_text methodsKent Overstreet2023-10-221-36/+20
| | | | Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
* bcachefs: Initial commitKent Overstreet2023-10-221-0/+494
Initially forked from drivers/md/bcache, bcachefs is a new copy-on-write filesystem with every feature you could possibly want. Website: https://bcachefs.org Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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