On Tue, Dec 02, 2014 at 05:33:35PM +0800, Hu Tao wrote:
btrfs_quota_rescan trashs all qgroup numbers and scans the metadata again with the current config.
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> --- daemon/btrfs.c | 31 +++++++++++++++++++++++++++++++ generator/actions.ml | 9 +++++++++ src/MAX_PROC_NR | 2 +- 3 files changed, 41 insertions(+), 1 deletion(-)
diff --git a/daemon/btrfs.c b/daemon/btrfs.c index 5fcb85b..6918d4f 100644 --- a/daemon/btrfs.c +++ b/daemon/btrfs.c @@ -1057,3 +1057,34 @@ int do_btrfs_quota_disable (const char *path)
return 0; } + +int do_btrfs_quota_rescan (const char *path) +{ + const size_t MAX_ARGS = 64; + const char *argv[MAX_ARGS]; + size_t i = 0; + CLEANUP_FREE char *path_buf = NULL; + CLEANUP_FREE char *err = NULL; + CLEANUP_FREE char *out = NULL; + int r; + + path_buf = sysroot_path (path); + if (path_buf == NULL) { + reply_with_perror ("malloc"); + return -1; + } + + ADD_ARG (argv, i, str_btrfs); + ADD_ARG (argv, i, "quota"); + ADD_ARG (argv, i, "rescan"); + ADD_ARG (argv, i, path_buf); + ADD_ARG (argv, i, NULL); + + r = commandv (&out, &err, argv); + if (r == -1) { + reply_with_error ("%s: %s", path, err); + return -1; + } + + return 0; +} diff --git a/generator/actions.ml b/generator/actions.ml index ab1a07a..f24d5d7 100644 --- a/generator/actions.ml +++ b/generator/actions.ml @@ -12063,6 +12063,15 @@ Enable subvolume quota support for filesystem which contains C<path>." }; longdesc = "\ Disable subvolume quota support for filesystem which contains C<path>." };
+ { defaults with + name = "btrfs_quota_rescan"; + style = RErr, [Pathname "path"], []; + proc_nr = Some 429; + optional = Some "btrfs"; camel_name = "BTRFSQuotaRescan"; + shortdesc = "trash all qgroup numbers and scan the metadata again with the current config"; + longdesc = "\ +Trash all qgroup numbers and scan the metadata again with the current config." }; + ]
(* Non-API meta-commands available only in guestfish. diff --git a/src/MAX_PROC_NR b/src/MAX_PROC_NR index 43d371a..3560666 100644 --- a/src/MAX_PROC_NR +++ b/src/MAX_PROC_NR @@ -1 +1 @@ -428 +429
ACK. Could use a simple test. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://people.redhat.com/~rjones/virt-df/