[Libguestfs] [PATCH v2 05/11] New API: btrfs_quota_rescan

btrfs_quota_rescan trashs all qgroup numbers and scans the metadata again with the current config. Signed-off-by: Hu Tao <hutao(a)cn.fujitsu.com&gt; --- daemon/btrfs.c | 33 +++++++++++++++++++++++++++++++++ generator/actions.ml | 21 +++++++++++++++++++++ src/MAX_PROC_NR | 2 +- 3 files changed, 55 insertions(+), 1 deletion(-) diff --git a/daemon/btrfs.c b/daemon/btrfs.c index 195b9ba..629cb6f 100644 --- a/daemon/btrfs.c +++ b/daemon/btrfs.c @@ -1049,3 +1049,36 @@ error: return -1; return r; } + +int +do_btrfs_quota_rescan (const mountable_t *fs) +{ + const size_t MAX_ARGS = 64; + const char *argv[MAX_ARGS]; + size_t i = 0; + char *fs_buf = NULL; + CLEANUP_FREE char *err = NULL; + CLEANUP_FREE char *out = NULL; + int r = -1; + + fs_buf = mount (fs); + if (fs_buf == NULL) + goto error; + + ADD_ARG (argv, i, str_btrfs); + ADD_ARG (argv, i, "quota"); + ADD_ARG (argv, i, "rescan"); + ADD_ARG (argv, i, fs_buf); + ADD_ARG (argv, i, NULL); + + r = commandv (&out, &err, argv); + if (r == -1) { + reply_with_error ("%s: %s", fs_buf, err); + goto error; + } + +error: + if (fs_buf && umount (fs_buf, fs) != 0) + return -1; + return r; +} diff --git a/generator/actions.ml b/generator/actions.ml index 9de6b14..e635ef9 100644 --- a/generator/actions.ml +++ b/generator/actions.ml @@ -12100,6 +12100,27 @@ Return detailed information of the subvolume." }; longdesc = "\ Enable or disable subvolume quota support for filesystem which contains C<path>." }; + { defaults with + name = "btrfs_quota_rescan"; + style = RErr, [Mountable_or_Path "fs"], []; + proc_nr = Some 428; + optional = Some "btrfs"; camel_name = "BTRFSQuotaRescan"; + tests = [ + InitPartition, Always, TestRun ( + [["mkfs_btrfs"; "/dev/sda1"; ""; ""; "NOARG"; ""; "NOARG"; "NOARG"; ""; ""]; + ["btrfs_quota_enable"; "/dev/sda1"; "true"]; + ["btrfs_quota_rescan"; "/dev/sda1"]]), []; + InitPartition, Always, TestRun ( + [["mkfs_btrfs"; "/dev/sda1"; ""; ""; "NOARG"; ""; "NOARG"; "NOARG"; ""; ""]; + ["mount"; "/dev/sda1"; "/"]; + ["btrfs_quota_enable"; "/"; "true"]; + ["btrfs_quota_rescan"; "/"]]), []; + ]; + + 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 d2a1e59..43d371a 100644 --- a/src/MAX_PROC_NR +++ b/src/MAX_PROC_NR @@ -1 +1 @@ -427 +428 -- 1.9.3