search for: write_extent_buff

.... Reproducing with lock instrumentation reported recursive spinlock acquisition, probably a false-positive from the locking scheme not being annotated, so better report it now. Daniel --- [1] BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffffa00e23cb>] write_extent_buffer+0xbb/0x1b0 [btrfs] PGD 0 Oops: 0000 [#1] SMP last sysfs file: /sys/devices/pci0000:00/0000:00:1e.0/0000:06:04.0/local_cpus CPU 1 Modules linked in: microcode psmouse serio_raw ioatdma i7core_edac joydev lp edac_core dca parport raid10 raid456 async_raid6_recov async_pq usbhid hid raid6_pq async_x...

...turn PTR_ERR(right); - } - - memset_extent_buffer(right, 0, 0, sizeof(struct btrfs_header)); - btrfs_set_header_bytenr(right, right->start); - btrfs_set_header_generation(right, trans->transid); - btrfs_set_header_owner(right, root->root_key.objectid); - btrfs_set_header_level(right, 0); - write_extent_buffer(right, root->fs_info->fsid, - (unsigned long)btrfs_header_fsid(right), - BTRFS_FSID_SIZE); + mid = (nritems + 1) / 2; - write_extent_buffer(right, root->fs_info->chunk_tree_uuid, - (unsigned long)btrfs_header_chunk_tree_uuid(right), - BTRFS_UUID_SIZE); if (...

..._key_to_disk(&disk_key, location); + btrfs_set_dir_item_key(leaf, dir_item, &disk_key); + btrfs_set_dir_type(leaf, dir_item, BTRFS_FT_ORPHAN_DIR); + btrfs_set_dir_name_len(leaf, dir_item, name_len); + btrfs_set_dir_data_len(leaf, dir_item, 0); + name_ptr = (unsigned long)(dir_item + 1); + + write_extent_buffer(leaf, name, name_ptr, name_len); + btrfs_mark_buffer_dirty(path->nodes[0]); +out: + btrfs_free_path(path); + return ret; +} + +struct btrfs_dir_item *btrfs_lookup_orphan_dir_item(struct btrfs_trans_handle + *trans, + struct btrfs_root *root, + struct btrfs_path *path...

...-- extent -------- | + */ + if (start > key.offset && end >= extent_end) { + BUG_ON(del_nr > 0); + BUG_ON(extent_type == BTRFS_FILE_EXTENT_INLINE); - leaf = path->nodes[0]; - extent = btrfs_item_ptr(leaf, path->slots[0], - struct btrfs_file_extent_item); - write_extent_buffer(leaf, &old, - (unsigned long)extent, sizeof(old)); - - btrfs_set_file_extent_compression(leaf, extent, - compression); - btrfs_set_file_extent_encryption(leaf, extent, - encryption); - btrfs_set_file_extent_other_encoding(leaf, extent, - other_encoding)...

With the ATI bug I was hitting earlier fixed, only my btrfs partition continues to show high cpu usage for some operations. Rsync, git pull, git checkout and svn up are typicall operations which trigger the high cpu usage. As an example, this perf report is from using git checkout to change to a new branch; the change needed to checkout 208 files out of about 1600 total files. du(1) reports

Changes v1-v2: - Remove restriction that BTRFS_IOC_GET_DEVICE_STATS is a privileged operation - Cast u64 to unsigned long long for printf() Changes v2-v3: - Rebased on Chris'' current master Changes v3-v4: - Add padding at end of ioctl structure Changes v4-v5: - The statistic members in the ioctl are now organized as an array of 64 bit values. Symbolic names for the array indexes

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

From: Anand <anand.jain@oracle.com> This patch adds creation-time to the snapshot list display, which would help user to better manage the snapshots when number of snapshots grow substantially. This patch is developed and on top of the send/receive btrfs and btrfs-progs repo at git://github.com/ablock84/linux-btrfs.git (send-v2) git://github.com/ablock84/btrfs-progs.git (send-v2)

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