summaryrefslogtreecommitdiff
path: root/src/shared/btrfs-util.c
diff options
context:
space:
mode:
authorLennart Poettering <lennart@poettering.net>2015-02-24 23:50:37 +0100
committerLennart Poettering <lennart@poettering.net>2015-02-25 22:06:54 +0100
commitd6ce17c7f02ed3facdb45f65f546e587c2f00950 (patch)
tree844e595be12176a1e29163fa64f0af0b86d953bd /src/shared/btrfs-util.c
parent950c07d421c04e5aae99973479f4f13131fb45e1 (diff)
machined,machinectl: add calls for changing container/VM quotas
Diffstat (limited to 'src/shared/btrfs-util.c')
-rw-r--r--src/shared/btrfs-util.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/src/shared/btrfs-util.c b/src/shared/btrfs-util.c
index 980963b748..6761501da2 100644
--- a/src/shared/btrfs-util.c
+++ b/src/shared/btrfs-util.c
@@ -669,3 +669,29 @@ int btrfs_quota_enable(const char *path, bool b) {
return btrfs_quota_enable_fd(fd, b);
}
+
+int btrfs_quota_limit_fd(int fd, uint64_t referred_max) {
+ struct btrfs_ioctl_qgroup_limit_args args = {
+ .lim.max_rfer =
+ referred_max == (uint64_t) -1 ? 0 :
+ referred_max == 0 ? 1 : referred_max,
+ .lim.flags = BTRFS_QGROUP_LIMIT_MAX_RFER,
+ };
+
+ assert(fd >= 0);
+
+ if (ioctl(fd, BTRFS_IOC_QGROUP_LIMIT, &args) < 0)
+ return -errno;
+
+ return 0;
+}
+
+int btrfs_quota_limit(const char *path, uint64_t referred_max) {
+ _cleanup_close_ int fd = -1;
+
+ fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW);
+ if (fd < 0)
+ return -errno;
+
+ return btrfs_quota_limit_fd(fd, referred_max);
+}