- 30 5月, 2018 7 次提交
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由 Gu Jinxiang 提交于
Function btrfs_exclude_logged_extents may call __exclude_logged_extent which may fail. Propagate the failures of __exclude_logged_extent to upper caller. Signed-off-by: NGu Jinxiang <gujx@cn.fujitsu.com> Reviewed-by: NNikolay Borisov <nborisov@suse.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Nikolay Borisov 提交于
Instead of setting "parent" to ref->parent only when dealing with a shared ref and subsequently performing another check to see if (parent > 0), check the "node->type" directly and act accordingly. This makes the code more streamline. No functional changes. Signed-off-by: NNikolay Borisov <nborisov@suse.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Nikolay Borisov 提交于
Instead of taking only specific member of this structure, which results in 2 extra arguments, just take the delayed_extent_op struct and reference the arguments inside the functions. No functional changes. Signed-off-by: NNikolay Borisov <nborisov@suse.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Nikolay Borisov 提交于
This function currently takes 7 parameters, most of which are proxies for values from btrfs_delayed_ref_node struct which is not passed. This patch simplifies the interface of the function by simply passing said delayed ref node struct to the function. This enables us to: 1. Move locals variables and init code related to them from run_delayed_tree_ref which should only be used inside alloc_reserved_tree_block, such as skinny_metadata and the btrfs_key, representing the extent being inserted. This removes the need for the "ins" argument. Instead, it's replaced by a local var with a more verbose name - extent_key. 2. Now that we have a reference to the node in alloc_reserved_tree_block the delayed_tree_ref struct can be referenced inside the function and this enable removing the "ref->level", "parent" and "ref_root" arguments. Signed-off-by: NNikolay Borisov <nborisov@suse.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Nikolay Borisov 提交于
This function already takes a transaction handle which contains a reference to the fs_info. So use this and remove the extra argument. Signed-off-by: NNikolay Borisov <nborisov@suse.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 David Sterba 提交于
Now that test_err strings do not need the newline, remove them also from the test_msg. Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 David Sterba 提交于
The test failures are not clearly visible in the system log as they're printed at INFO level. Add a new helper that is level ERROR. As this touches almost all strings, I took the opportunity to unify them: - decapitalize the first letter as there's a prefix and the text continues after ":" - glue strings split to more lines and un-indent so they fit to 80 columns - use %llu instead of %Lu - drop \n from the modified messages (test_msg is left untouched) Signed-off-by: NDavid Sterba <dsterba@suse.com>
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- 29 5月, 2018 33 次提交
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由 Misono Tomohiro 提交于
btrfs_read_fs_root_no_name() may return ERR_PTR(-ENOENT) or ERR_PTR(-ENOMEM) and therefore search_ioctl() and btrfs_search_path_in_tree() should use PTR_ERR() instead of -ENOENT, which all other callers of btrfs_read_fs_root_no_name() do. Drop the error message as it would be confusing, the caller of ioctl will likely interpret the error code and not look into the syslog. Signed-off-by: NTomohiro Misono <misono.tomohiro@jp.fujitsu.com> Reviewed-by: NQu Wenruo <wqu@suse.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Omar Sandoval 提交于
I got a report that after upgrading to 4.16, someone's filesystems weren't mounting: [ 23.845852] BTRFS info (device loop0): unrecognized mount option 'subvol=' Before 4.16, this mounted the default subvolume. It turns out that this empty "subvol=" is actually an application bug, but it was causing the application to fail, so it's an ABI break if you squint. The generic parsing code we use for mount options (match_token()) doesn't match an empty string as "%s". Previously, setup_root_args() removed the "subvol=" string, but the mount path was cleaned up to not need that. Add a dummy Opt_subvol_empty to fix this. The simple workaround is to use / or . for the value of 'subvol=' . Fixes: 312c89fb ("btrfs: cleanup btrfs_mount() using btrfs_mount_root()") CC: stable@vger.kernel.org # 4.16+ Signed-off-by: NOmar Sandoval <osandov@fb.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Anand Jain 提交于
Looks like the original idea was to print the hex of the flags which is not coded with their flag name. So use the current buf pointer bp instead of buf. Reaching the uknown flags should never happen, it's there just in case. Fixes: ebce0e01 ("btrfs: make block group flags in balance printks human-readable") Signed-off-by: NAnand Jain <anand.jain@oracle.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 David Sterba 提交于
The dedupe range is 16 MiB, with 4 KiB pages and 8 byte pointers, the arrays can be 32KiB large. To avoid allocation failures due to fragmented memory, use the allocation with fallback to vmalloc. The arrays are allocated and freed only inside btrfs_extent_same and reused for all the ranges. Reviewed-by: NNikolay Borisov <nborisov@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Timofey Titovets 提交于
We support big dedup requests by splitting range to smaller parts, and call dedupe logic on each of them. Instead of repeated allocation and deallocation, allocate once at the beginning and reuse in the iteration. Signed-off-by: NTimofey Titovets <nefelim4ag@gmail.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Timofey Titovets 提交于
Currently btrfs_dedupe_file_range silently restricts the dedupe range to to 16MiB to limit locking and working memory size and is documented in manual page as implementation specific. Let's remove that restriction by iterating over the dedup range in 16MiB steps. This is backward compatible and will not change anything for requests smaller then 16MiB. Signed-off-by: NTimofey Titovets <nefelim4ag@gmail.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Timofey Titovets 提交于
Split btrfs_extent_same() to two parts where one is the main EXTENT_SAME entry and a helper that can be repeatedly called on a range. This will be used in following patches. Signed-off-by: NTimofey Titovets <nefelim4ag@gmail.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Omar Sandoval 提交于
btrfs_link() calls btrfs_orphan_del() if it's linking an O_TMPFILE but it doesn't reserve space to do so. Even before the removal of the orphan_block_rsv it wasn't using it. Fixes: ef3b9af5 ("Btrfs: implement inode_operations callback tmpfile") Reviewed-by: NFilipe Manana <fdmanana@suse.com> Signed-off-by: NOmar Sandoval <osandov@fb.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Omar Sandoval 提交于
We got rid of BTRFS_INODE_HAS_ORPHAN_ITEM and BTRFS_INODE_ORPHAN_META_RESERVED, so we can renumber the flags to make them consecutive again. Signed-off-by: NOmar Sandoval <osandov@fb.com> [ switch them enums so we don't have to do that again ] Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Omar Sandoval 提交于
Now that we don't keep long-standing reservations for orphan items, root->orphan_block_rsv isn't used. We can git rid of it, along with: - root->orphan_lock, which was used to protect root->orphan_block_rsv - root->orphan_inodes, which was used as a refcount for root->orphan_block_rsv - BTRFS_INODE_ORPHAN_META_RESERVED, which was used to track reservations in root->orphan_block_rsv - btrfs_orphan_commit_root(), which was the last user of any of these and does nothing else Reviewed-by: NNikolay Borisov <nborisov@suse.com> Signed-off-by: NOmar Sandoval <osandov@fb.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Omar Sandoval 提交于
Currently, we keep space reserved for all inode orphan items until the inode is evicted (i.e., all references to it are dropped). We hit an issue where an application would keep a bunch of deleted files open (by design) and thus keep a large amount of space reserved, causing ENOSPC errors when other operations tried to reserve space. This long-standing reservation isn't absolutely necessary for a couple of reasons: - We can almost always make the reservation we need or steal from the global reserve for the orphan item - If we can't, it's not the end of the world if we drop the orphan item on the floor and let the next mount clean it up So, get rid of persistent reservation and just reserve space in btrfs_evict_inode(). Reviewed-by: NNikolay Borisov <nborisov@suse.com> Signed-off-by: NOmar Sandoval <osandov@fb.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Omar Sandoval 提交于
The truncate loop in btrfs_evict_inode() does two things at once: - It refills the temporary block reserve, potentially stealing from the global reserve or committing - It calls btrfs_truncate_inode_items() The tangle of continues hides the fact that these two steps are actually separate. Split the first step out into a separate function both for clarity and so that we can reuse it in a later patch. Reviewed-by: NNikolay Borisov <nborisov@suse.com> Signed-off-by: NOmar Sandoval <osandov@fb.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Omar Sandoval 提交于
In btrfs_evict_inode(), if btrfs_truncate_inode_items() fails, the inode item will still be in the tree but we still return the ino to the ino cache. That will blow up later when someone tries to allocate that ino, so don't return it to the cache. Fixes: 581bb050 ("Btrfs: Cache free inode numbers in memory") Reviewed-by: NJosef Bacik <jbacik@fb.com> Signed-off-by: NOmar Sandoval <osandov@fb.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Omar Sandoval 提交于
btrfs_orphan_commit_root() tries to delete an orphan item for a subvolume in the tree root, but we don't actually insert that item in the first place. See commit 0a0d4415 ("Btrfs: delete dead code in btrfs_orphan_add()"). We can get rid of it. Reviewed-by: NJosef Bacik <jbacik@fb.com> Signed-off-by: NOmar Sandoval <osandov@fb.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Omar Sandoval 提交于
Now that we don't add orphan items for truncate, there can't be races on adding or deleting an orphan item, so this bit is unnecessary. Reviewed-by: NNikolay Borisov <nborisov@suse.com> Signed-off-by: NOmar Sandoval <osandov@fb.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Omar Sandoval 提交于
Currently, we insert an orphan item during a truncate so that if there's a crash, we don't leak extents past the on-disk i_size. However, since commit 7f4f6e0a ("Btrfs: only update disk_i_size as we remove extents"), we keep disk_i_size in sync with the extent items as we truncate, so orphan cleanup will never have any extents to remove. Don't bother with the superfluous orphan item. Reviewed-by: NJosef Bacik <jbacik@fb.com> Signed-off-by: NOmar Sandoval <osandov@fb.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Omar Sandoval 提交于
btrfs_free_extent() can fail because of ENOMEM. There's no reason to panic here, we can just abort the transaction. Fixes: f4b9aa8d ("btrfs_truncate") Reviewed-by: NNikolay Borisov <nborisov@suse.com> Signed-off-by: NOmar Sandoval <osandov@fb.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Omar Sandoval 提交于
btrfs_truncate_inode_items() uses two variables for error handling, ret and err. These are not handled consistently, leading to a couple of bugs. - Errors from btrfs_del_items() are handled but not propagated to the caller - If btrfs_run_delayed_refs() fails and aborts the transaction, we continue running Just use ret everywhere and simplify things a bit, fixing both of these issues. Fixes: 79787eaa ("btrfs: replace many BUG_ONs with proper error handling") Fixes: 1262133b ("Btrfs: account for crcs in delayed ref processing") Reviewed-by: NNikolay Borisov <nborisov@suse.com> Signed-off-by: NOmar Sandoval <osandov@fb.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Omar Sandoval 提交于
Commit a41ad394 ("Btrfs: convert to the new truncate sequence") changed btrfs_setsize() to call truncate_setsize() instead of vmtruncate() but didn't update the comment above it. truncate_setsize() never fails (the IS_SWAPFILE() check happens elsewhere), so remove the comment. Additionally, the comment above btrfs_page_mkwrite() references vmtruncate(), but truncate_setsize() does the size write and page locking now. Signed-off-by: NOmar Sandoval <osandov@fb.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Nikolay Borisov 提交于
select_delayed_ref really just gets the next delayed ref which has to be processed - either an add ref or drop ref. We never go back for anything. So the comment is actually bogus, just remove it. Signed-off-by: NNikolay Borisov <nborisov@suse.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Misono Tomohiro 提交于
Deletion of a subvolume by rmdir(2) has become allowed by the 'commit cd2decf640b1 ("btrfs: Allow rmdir(2) to delete an empty subvolume")'. It is a kind of new feature and this commits add a sysfs entry /sys/fs/btrfs/features/rmdir_subvol to indicate the availability of the feature so that a user program (e.g. fstests) can detect it. Prior to this commit, all entries in /sys/fs/btrfs/features are feature which depend on feature bits of superblock (i.e. each feature affects on-disk format) and managed by attribute_group "btrfs_feature_attr_group". For each fs, entries in /sys/fs/btrfs/UUID/features indicate which features are enabled (or can be changed online) for the fs. However, rmdir_subvol feature only depends on kernel module. Therefore new attribute_group "btrfs_static_feature_attr_group" is introduced and sysfs_merge_group() is used to share /sys/fs/btrfs/features directory. Features in "btrfs_static_feature_attr_group" won't be listed in each /sys/fs/btrfs/UUID/features. Signed-off-by: NTomohiro Misono <misono.tomohiro@jp.fujitsu.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Tomohiro Misono 提交于
Use existing named values instead of the raw numbers. Signed-off-by: NTomohiro Misono <misono.tomohiro@jp.fujitsu.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Anand Jain 提交于
Kernel logs are very important for the forensic investigations of the issues in general make it easy to use it. This patch adds 'balance:' prefix so that it can be easily searched. Signed-off-by: NAnand Jain <anand.jain@oracle.com> Reviewed-by: NNikolay Borisov <nborisov@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 David Sterba 提交于
* The simple 'flags' refer to the btrfs inode * ... that's in 'binode * the FS_*_FL variables are 'fsflags' * the old copies of the variable are prefixed by 'old_' * Struct inode flags contain 'i_flags'. Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 David Sterba 提交于
The new ioctl is an extension to the FS_IOC_SETFLAGS and adds new flags and is extensible. Don't get fooled by the XATTR in the name, it does not have anything in common with the extended attributes, incidentally also abbreviated as XATTRs. This patch allows to set the xflags portion of the fsxattr structure, other items have no meaning and non-zero values will result in EOPNOTSUPP. Currently supported xflags: - APPEND - IMMUTABLE - NOATIME - NODUMP - SYNC The structure of btrfs_ioctl_fssetxattr copies btrfs_ioctl_setflags but is simpler on the flag setting side. The original patch was written by Chandan Jay Sharma but was incomplete and no further revision has been sent. Based-on-patches-by: NChandan Jay Sharma <chandansbg@gmail.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 David Sterba 提交于
The new ioctl is an extension to the FS_IOC_GETFLAGS and adds new flags and is extensible. This patch allows to return the xflags portion of the fsxattr structure, other items have no meaning for btrfs or can be added later. The original patch was written by Chandan Jay Sharma but was incomplete and no further revision has been sent. Several cleanups were necessary to avoid confusion with other ioctls, as we have another flavor of flags. Based-on-patches-by: NChandan Jay Sharma <chandansbg@gmail.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 David Sterba 提交于
Preparatory work for the FS_IOC_FSGETXATTR ioctl, basic conversions and checking helpers. Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 David Sterba 提交于
Converts btrfs_inode::flags to the FS_*_FL flags. Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 David Sterba 提交于
The FS_*_FL flags cannot be easily identified by a prefix but we still need to recognize them so the 'fsflags' should be closer to the naming scheme but again the 'fs' part sounds like it's a filesystem flag. I don't have a better idea for now. Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 David Sterba 提交于
The FS_*_FL flags cannot be easily identified by a variable name prefix but we still need to recognize them so the 'fsflags' should be closer to the naming scheme but again the 'fs' part sounds like it's a filesystem flag. I don't have a better idea for now. Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 David Sterba 提交于
The btrfs inode flag flavour is now simply called 'inode flags' and the vfs inode are i_flags. Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Anand Jain 提交于
Use a local btrfs_fs_devices variable to access the structure. Signed-off-by: NAnand Jain <anand.jain@oracle.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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由 Anand Jain 提交于
Delete the uuid_mutex lock here as this thread accesses the btrfs_fs_devices::devices only (counters or called functions do a list traversal). And the device_list_mutex lock is already taken. Signed-off-by: NAnand Jain <anand.jain@oracle.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> [ update changelog ] Signed-off-by: NDavid Sterba <dsterba@suse.com>
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