search for: fs_root

...fs.c b/mkfs.c index 7ff60e5..9cd93e4 100644 --- a/mkfs.c +++ b/mkfs.c @@ -151,37 +151,55 @@ static int recow_roots(struct btrfs_trans_handle *trans, int ret; struct extent_buffer *tmp; struct btrfs_fs_info *info = root->fs_info; + u64 generation; - ret = __btrfs_cow_block(trans, info->fs_root, info->fs_root->node, - NULL, 0, &tmp, 0, 0); - BUG_ON(ret); - free_extent_buffer(tmp); + generation = btrfs_root_generation(&info->fs_root->root_item); + if (generation != trans->transid) { + ret = __btrfs_cow_block(trans, info->fs_root, + info->fs_root->node...

When replaying a log tree with qgroups enabled, tree_mod_log_rewind does a sanity-check of the number of items against the maximum possible number. It calculates that number with the nodesize of fs_root. Unfortunately fs_root is not yet set at this stage. So instead use the nodesize from tree_root, which is already initialized. Signed-off-by: Arne Jansen <sensille@gmx.net> --- fs/btrfs/ctree.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/fs/btrfs/ctree.c b/fs/b...

...iterate_irefs now returns -ENOENT in case no refs are found - some stupid bugs removed where release_path was called too early - ioctls added to provide new functions to user mode - bugfixes for cases where search_slot found the very end of a leaf - bugfix: use right fs root for readpage instead of fs_root->fs_info - based on current cmason/for-linus Changelog v3->v4: - fixed a regression with mirror_num that could prevent error correction - based on current cmason/for-linus Please try it and report errors (or confirm there are none, of course). I can provide a place to pull from if anyone li...

...fo { struct mutex ordered_operations_mutex; struct rw_semaphore extent_commit_sem; - struct rw_semaphore subvol_sem; + struct rw_semaphore cleanup_work_sem; + struct rw_semaphore subvol_sem; struct srcu_struct subvol_srcu; struct list_head trans_list; @@ -1034,12 +1035,12 @@ struct btrfs_root { int ref_cows; int track_dirty; int in_radix; + int clean_orphans; u64 defrag_trans_start; struct btrfs_key defrag_progress; struct btrfs_key defrag_max; int defrag_running; - int defrag_level; char *name; int in_sysfs; diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c ind...

Hi, The following patches add support for ext4 and btrfs to PV-GRUB. These patches are taken nearly verbatim from those provided by Fedora and Gentoo. We''ve been using these patches for the PV-GRUB images available in EC2 for some time now with no problems. Changes from v1: - Makefile has been changed to check the exit code from patch - The btrfs patch has been rebased to apply

...g cache, so grub will search like a mad. The main search routine aux_tree_lookup() is recursive with depth 2. On the upper level we traverse the chunk tree and scroll the system array for a translation map. We have 3 different pools for search so that logical threads (e.g. name resolution, updating fs_root, looking for translation map) won''t step on each other. Every such pool is represented by structure btrfs_path, which has one "sliding" 4K-buffer. btrfs_mount() looks through super versions and pick up the most recent one. Then chunk_root and tree_root are installed to the globa...

...nt, it''ll firstly check if the file extent is shared, then update fs/file tree by updating inode. This ends up that the related extent record to the file extent may don''t have actual multiple references when checking shared status. ------------------------------------------------ fs_root snap \ / leaf ==> refs=2 | file_extent ==> refs=1(but actually refs is 2) After updating fs tree(or snapshot if snapshot is not RO), it''ll be fs root snap \ / cow leaf \ / file_extent ==> refs=2(we do have two parents) --------------------------...

...rchive. The archive stores webpages collected by our spiders. The test setup consists of three data machines, each exporting a volume of about 3.7TB and one nameserver machine. File layout is such that each host has it's own directory, for example the GlusterFS website would be located in: <fs_root>/db/org/g/www.glusterfd.org/ and each directory will have a small number of potentially large data files. A similar setup on local disks (without gluster) has proven it's capabilities over the years. We use a distributed computing model, each node in the archive runs one or more processes t...

The kernel side for rescan, which is needed if you want to enable qgroup tracking on a non-empty volume. The first patch splits btrfs_qgroup_account_ref into readable ans reusable units. The second patch adds the rescan implementation (refer to its commit message for a description of the algorithm). The third patch starts an automatic rescan when qgroups are enabled. It is only separated to

-----BEGIN PGP SIGNED MESSAGE----- > Date: Fri, 2 May 1997 12:33:00 -0500 > From: "Thomas H. Ptacek" <tqbf@ENTERACT.COM> > On almost all Unix operating systems, having superuser access in a > chroot() jail is still dangerous. In some recent revisions of 4.4BSD > operating systems, root can trivially escape chroot(), as well. I was thinking about possible attacks

...m_cache *btrfs_path_cac #define BTRFS_FT_SOCK 6 #define BTRFS_FT_SYMLINK 7 #define BTRFS_FT_XATTR 8 -#define BTRFS_FT_MAX 9 +#define BTRFS_FT_ORPHAN_DIR 9 +#define BTRFS_FT_MAX 10 /* * the key defines the order in the tree, and so it also defines (optimal) @@ -613,6 +614,10 @@ struct btrfs_root { /* the dirty list is only used by non-reference counted roots */ struct list_head dirty_list; + + /* orphan crap */ + struct inode *orphan_dir; + struct list_head orphan_list; }; /* @@ -624,6 +629,7 @@ struct btrfs_root { #define BTRFS_INODE_ITEM_KEY 1 #define BTRFS_INODE_REF_KEY 2...

This is a first draft of a subvolume quota implementation. It is possible to limit subvolumes and any group of subvolumes and also to track the amount of space that will get freed when deleting snapshots. The current version is functionally incomplete, with the main missing feature being the initial scan and rescan of an existing filesystem. I put some effort into writing an introduction into

...64 bytes_delalloc; /* number of bytes reserved for allocation, @@ -744,6 +745,7 @@ struct btrfs_block_group_cache { spinlock_t lock; u64 pinned; u64 reserved; + u64 bytes_super; u64 flags; u64 sectorsize; int extents_thresh; @@ -2012,7 +2014,7 @@ u64 btrfs_reduce_alloc_profile(struct btrfs_root *root, u64 flags); void btrfs_set_inode_space_info(struct btrfs_root *root, struct inode *ionde); void btrfs_clear_space_info_full(struct btrfs_fs_info *info); -int btrfs_check_metadata_free_space(struct btrfs_root *root); +u64 btrfs_metadata_free_space(struct btrfs_root *root); int btrfs_chec...

Hi all - Here''s my current error handling patchset, against 3.1-rc8. Almost all of this patchset is preparing for actual error handling. Before we start in on that work, I''m trying to reduce the surface we need to worry about. It turns out that there is a ton of code that returns an error code but never actually reports an error. The patchset has grown to 65 patches. 46 of them