"btrfs device stats" is used to retrieve and print the device stats. "btrfs device stats -z" is used to atomically retrieve, reset and print the stats.
In order to share two utility functions between scrub and the dev stats code, these two functions are moved to utils.c and renamed. Since these functions are using open_file_or_dir(), and since the linking against utils.o and common.o was different, open_file_or_dir() was moved from common.c to utils.c. And since that function makes use of the function dirfd(3), the required XOPEN version was raised from 6 to 7. Changes v1->v2: - Remove a verbose printf() - Cast u64 to unsigned long long for printf() - Update the man page Changes v2->v3: - Rebase on Chris' current master branch - Split the patch into three seperate patches because after rebasing, open_file_or_dir() was moved and additional changes had been necessary Stefan Behrens (3): Btrfs-progs: move open_file_or_dir() to utils.c Btrfs-progs: make two utility functions globally available Btrfs-progs: add command to get/reset device stats via ioctl Makefile | 4 +- btrfsctl.c | 28 -------------- cmds-balance.c | 1 + cmds-device.c | 113 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ cmds-inspect.c | 1 + cmds-scrub.c | 72 +--------------------------------- cmds-subvolume.c | 1 + commands.h | 3 -- common.c | 46 ---------------------- ctree.h | 6 +++ ioctl.h | 27 +++++++++++++ man/btrfs.8.in | 14 +++++++ print-tree.c | 6 +++ utils.c | 97 +++++++++++++++++++++++++++++++++++++++++++++- utils.h | 7 ++++ 15 files changed, 275 insertions(+), 151 deletions(-) delete mode 100644 common.c -- 1.7.10.2 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
