search for: btrfs_ioc_default_subvol

...1); return 0; + case BTRFS_IOC_COMPR_SIZE: + return btrfs_ioctl_compsize(file, argp); } return -ENOTTY; diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h index 424694a..a01ef1e 100644 --- a/fs/btrfs/ioctl.h +++ b/fs/btrfs/ioctl.h @@ -178,4 +178,5 @@ struct btrfs_ioctl_space_args { #define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, u64) #define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \ struct btrfs_ioctl_space_args) +#define BTRFS_IOC_COMPR_SIZE _IOR(BTRFS_IOCTL_MAGIC, 21, u64) #endif -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs"...

Hi everyone, This patchset is the latest approach I''m using for the Ceph storage daemon to keep track of which data has safely committed to disk. The basic idea is to not use the (problematic) user transaction ioctls at all. Instead, the daemon quiesces its own write requests, initiates an async snapshot, and then continues. The snapshot approach is nice because it provides rollback.

...gt;name); kfree(multi); if (!copy || mirror_num == copy) diff --git a/btrfsctl.c b/btrfsctl.c index 92bdf39..896999f 100644 --- a/btrfsctl.c +++ b/btrfsctl.c @@ -245,7 +245,7 @@ int main(int ac, char **av) args.fd = fd; ret = ioctl(snap_fd, command, &args); } else if (command == BTRFS_IOC_DEFAULT_SUBVOL) { - printf("objectid is %llu\n", objectid); + printf("objectid is %llu\n", (unsigned long long)objectid); ret = ioctl(fd, command, &objectid); } else ret = ioctl(fd, command, &args); diff --git a/debug-tree.c b/debug-tree.c index 0525354..e8ee64e 100644 --- a/...

...(!copy || mirror_num == copy) diff --git a/btrfsctl.c b/btrfsctl.c index be6bf25..45e7aa3 100644 - --- a/btrfsctl.c +++ b/btrfsctl.c @@ -234,7 +234,7 @@ int main(int ac, char **av) args.fd = fd; ret = ioctl(snap_fd, command, &args); } else if (command == BTRFS_IOC_DEFAULT_SUBVOL) { - - printf("objectid is %llu\n", objectid); + printf("objectid is %llu\n", (long long unsigned int) objectid); ret = ioctl(fd, command, &objectid); } else ret = ioctl(fd, command, &args); diff --git a...

Hi Chris, This is the extent of my current queue of Btrfs snapshot/subvol/commit stuff. Most of these were posted several months ago. Can be sent upstream during this merge window? Not having this functionality is becoming a bit of a roadblock for our efforts to keep the Ceph data in a consistent state. These patches are also available from

...+struct btrfs_ioctl_disk_info_args { + __u32 num_devices; + __u64 devices[0]; +}; + #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \ struct btrfs_ioctl_vol_args) #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \ @@ -178,4 +183,6 @@ struct btrfs_ioctl_space_args { #define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, u64) #define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \ struct btrfs_ioctl_space_args) +#define BTRFS_IOC_DISK_INFO _IOWR(BTRFS_IOCTL_MAGIC, 21, \ + struct btrfs_ioctl_disk_info_args) #endif -- 1.6.6.1 -- To unsubscribe from this list: send the...