search for: btrfs_delalloc_reserve_metadata

...l-fnst@cn.fujitsu.com> --- fs/btrfs/extent-tree.c | 11 ++++++----- 1 files changed, 6 insertions(+), 5 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 34ade06..f0c960b 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -4772,9 +4772,14 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes) * ret != 0 here means the qgroup reservation failed, we go straight to * the shared error handling then. */ - if (ret == 0) + if (ret == 0) { ret = reserve_metadata_bytes(root, block_rsv, to_reserve, flush); + if (ret && root->f...

worker_loop() uses schedule_timeout() without setting state to STATE_(UN)INTERRUPTIBLE. As it is called in cycle without checking of pending signals, use schedule_timeout_uninterruptible(). Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> --- fs/btrfs/async-thread.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c

...- - file_ra_state_init(ra, inode->i_mapping); + goto out; - WARN_ON(cluster->start != cluster->boundary[0]); + index = (cluster->start - offset) >> PAGE_CACHE_SHIFT; + last_index = (cluster->end - offset) >> PAGE_CACHE_SHIFT; while (index <= last_index) { + ret = btrfs_delalloc_reserve_metadata(inode, PAGE_CACHE_SIZE); + if (ret) + goto out; + page = find_lock_page(inode->i_mapping, index); if (!page) { page_cache_sync_readahead(inode->i_mapping, @@ -2622,8 +2668,10 @@ static int relocate_file_extent_cluster( last_index + 1 - index); page = grab_cache_page(...

...0x2a/0x58 Jul 8 11:49:40 xback2 kernel: [74920.681032] [<ffffffff810d8d61>] find_or_create_page+0x5a/0x8a Jul 8 11:49:40 xback2 kernel: [74920.681032] [<ffffffffa0423620>] prepare_pages+0xd3/0x2e7 [btrfs] Jul 8 11:49:40 xback2 kernel: [74920.681032] [<ffffffffa040aad7>] ? btrfs_delalloc_reserve_metadata+0xf9/0x128 [btrfs] Jul 8 11:49:40 xback2 kernel: [74920.681032] [<ffffffffa0423ca6>] btrfs_file_aio_write+0x472/0x7f1 [btrfs] Jul 8 11:49:40 xback2 kernel: [74920.681032] [<ffffffff811346ef>] ? touch_atime+0x116/0x131 Jul 8 11:49:40 xback2 kernel: [74920.681032] [<ffffffff811...

After running ceph on XFS for some time, I decided to try btrfs again. Performance with the current "for-linux-min" branch and big metadata is much better. The only problem (?) I''m still seeing is a warning that seems to occur from time to time: [87703.784552] ------------[ cut here ]------------ [87703.789759] WARNING: at fs/btrfs/inode.c:2103

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