search for: __find_space_info

...================== --- linux-2.6.35-rc2-gcc.orig/fs/btrfs/extent-tree.c +++ linux-2.6.35-rc2-gcc/fs/btrfs/extent-tree.c @@ -3337,8 +3337,7 @@ struct btrfs_block_rsv *btrfs_alloc_bloc btrfs_init_block_rsv(block_rsv); alloc_target = btrfs_get_alloc_profile(root, 0); - block_rsv->space_info = __find_space_info(fs_info, - BTRFS_BLOCK_GROUP_METADATA); + block_rsv->space_info = __find_space_info(fs_info, alloc_target); return block_rsv; } Index: linux-2.6.35-rc2-gcc/fs/btrfs/dir-item.c =================================================================== --- linux-2.6.35-rc2-gcc.orig/fs/btrfs/d...

...t loop = 0; - int extra_loop = 0; + int using_hint = 0; struct btrfs_space_info *space_info; WARN_ON(num_bytes < root->sectorsize); @@ -2567,6 +2563,8 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans, ins->objectid = 0; ins->offset = 0; + space_info = __find_space_info(root->fs_info, data); + if (orig_root->ref_cows || empty_size) allowed_chunk_alloc = 1; @@ -2580,10 +2578,9 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans, last_ptr = &root->fs_info->last_data_alloc; if (last_ptr) { - if (*last_ptr) { + if (...

...ck_group(root->fs_info, last); - if (!cache) - goto out; - - *cache_ret = cache; - goto again; - -out: - return -ENOSPC; -} - -static u64 div_factor(u64 num, int factor) -{ - if (factor == 10) - return num; - num *= factor; - do_div(num, 10); - return num; -} - static struct btrfs_space_info *__find_space_info(struct btrfs_fs_info *info, u64 flags) { @@ -384,6 +331,15 @@ static struct btrfs_space_info *__find_space_info(struct btrfs_fs_info *info, return NULL; } +static u64 div_factor(u64 num, int factor) +{ + if (factor == 10) + return num; + num *= factor; + do_div(num, 10); + return nu...

...ot->root_item); + spin_unlock(&fs_info->csum_root->accounting_lock); + + spin_lock(&fs_info->tree_root->accounting_lock); + num_bytes += btrfs_root_used(&fs_info->tree_root->root_item); + spin_unlock(&fs_info->tree_root->accounting_lock); +#endif + sinfo = __find_space_info(fs_info, BTRFS_BLOCK_GROUP_DATA); + spin_lock(&sinfo->lock); + data_used = sinfo->bytes_used; + spin_unlock(&sinfo->lock); + + sinfo = __find_space_info(fs_info, BTRFS_BLOCK_GROUP_METADATA); + spin_lock(&sinfo->lock); + meta_used = sinfo->bytes_used; + spin_unlock(&si...

...* metadata for updating devices and chunk tree */ + return btrfs_calc_trans_metadata_size(root, num_dev + 1); +} + +static void check_system_chunk(struct btrfs_trans_handle *trans, + struct btrfs_root *root, u64 type) +{ + struct btrfs_space_info *info; + u64 left; + u64 thresh; + + info = __find_space_info(root->fs_info, BTRFS_BLOCK_GROUP_SYSTEM); + spin_lock(&info->lock); + left = info->total_bytes - info->bytes_used - info->bytes_pinned - + info->bytes_reserved - info->bytes_readonly; + spin_unlock(&info->lock); + + thresh = get_system_chunk_thresh(root, type); + if...

...ite_range+0x5b/0x60 [ 153.916315] [<ffffffff8110d61f>] filemap_fdatawrite+0x1f/0x30 [ 153.920013] [<ffffffff8110d665>] filemap_write_and_wait+0x35/0x60 [ 153.920013] [<ffffffffa01cf622>] __btrfs_write_out_cache+0x792/0x9a0 [btrfs] [ 153.920013] [<ffffffffa0175b25>] ? __find_space_info+0x85/0xa0 [btrfs] [ 153.920013] [<ffffffffa017f28b>] ? btrfs_run_delayed_refs+0x1cb/0x450 [btrfs] [ 153.920013] [<ffffffffa01cf8c5>] btrfs_write_out_cache+0x95/0xf0 [btrfs] [ 153.920013] [<ffffffffa017fa2f>] btrfs_write_dirty_block_groups+0x51f/0x5f0 [btrfs] [ 153.920013]...

Hello On my HP Compaq dc5800 with Ubuntu 13.04 and their 3.8.0-19-lowlatency kernel, I''ve got quite some kernel traces in the syslog. You can find them below or at http://pastebin.com/bLXPBX67 (to avoid line breaks…). These kernel traces all begin with: WARNING: at fs/btrfs/free-space-cache.c:921 __btrfs_write_out_cache+0x6b9/0x9a0 [btrfs]() Most of the time, it starts with: Call

...rfs_fs_info *info = root->fs_info; struct btrfs_space_info *meta_sinfo; - u64 alloc_target, thresh; - int committed = 0, ret; + u64 alloc_target, thresh, used, total; /* get the space info for where the metadata will live */ alloc_target = btrfs_get_alloc_profile(root, 0); meta_sinfo = __find_space_info(info, alloc_target); -again: spin_lock(&meta_sinfo->lock); - if (!meta_sinfo->full) - thresh = meta_sinfo->total_bytes * 80; - else - thresh = meta_sinfo->total_bytes * 95; - - do_div(thresh, 100); + total = meta_sinfo->total_bytes; + used = meta_sinfo->bytes_used + meta...

An user reported that he has hit an annoying deadlock while playing with ceph based on btrfs. Current updating device tree requires space from METADATA chunk, so we -may- need to do a recursive chunk allocation when adding/updating dev extent, that is where the deadlock comes from. If we use SYSTEM metadata to update device tree, we can avoid the recursive stuff. Reported-by: Jim Schutt

.../fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 32639f2..3ecee8e 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -4500,6 +4500,7 @@ struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_root *root, btrfs_init_block_rsv(block_rsv, type); block_rsv->space_info = __find_space_info(fs_info, BTRFS_BLOCK_GROUP_METADATA); + atomic_set(&block_rsv->count, 0); return block_rsv; } diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index b67b81a..459ffe2 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -2870,8 +2870,13 @@ void btrfs_orphan_commit_root(struct...

Hello, This patch series adds an initial implementation of restriper (it''s a clever name for relocation framework that allows to do selective profile changing and selective balancing with some goodies like pausing/resuming and reporting progress to the user. Profile changing is global (per-FS) so far, per-subvolume profiles require some discussion and can be implemented in future.