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cgroup-util: add new cg_remove_xattr() for removing xattr from cgroup

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This commit is contained in:
Lennart Poettering 2019-11-20 17:41:48 +01:00
parent 59a49b1bcd
commit bf25f1657f
2 changed files with 18 additions and 0 deletions
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17
src/basic/cgroup-util.c
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@ -605,6 +605,23 @@ int cg_get_xattr(const char *controller, const char *path, const char *name, voi
return (int) n;
}
int cg_remove_xattr(const char *controller, const char *path, const char *name) {
_cleanup_free_ char *fs = NULL;
int r;
assert(path);
assert(name);
r = cg_get_path(controller, path, NULL, &fs);
if (r < 0)
return r;
if (removexattr(fs, name) < 0)
return -errno;
return 0;
}
int cg_pid_get_path(const char *controller, pid_t pid, char **path) {
_cleanup_fclose_ FILE *f = NULL;
const char *fs, *controller_str;

1
src/basic/cgroup-util.h
View File

@ -188,6 +188,7 @@ int cg_set_access(const char *controller, const char *path, uid_t uid, gid_t gid
int cg_set_xattr(const char *controller, const char *path, const char *name, const void *value, size_t size, int flags);
int cg_get_xattr(const char *controller, const char *path, const char *name, void *value, size_t size);
int cg_remove_xattr(const char *controller, const char *path, const char *name);
int cg_install_release_agent(const char *controller, const char *agent);
int cg_uninstall_release_agent(const char *controller);