[PATCH v2 3/3] xfs_quota: additional changes to allow use on ext4

["Bill O'Donnell" <billodo@xxxxxxxxxx>]

Further changes to allow xfs_quota to be used on foreign filesystem(s)
(e.g. ext4) for project quota testing in xfstests.

Add CMD_FLAG_GENERIC to enable generic xfs_quota commands (help and
quit) when xfs_quota is run on foreign filesystems.

Use CMD_FLAG_FOREIGN_OK on commands suitable for foreign filesystems.

Signed-off-by: Bill O'Donnell <billodo@xxxxxxxxxx>
---
 include/command.h | 1 +
 libxcmd/help.c    | 3 ++-
 libxcmd/quit.c    | 3 ++-
 quota/init.c      | 3 ++-
 4 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/include/command.h b/include/command.h
index 81d5a4d..1c2898a 100644
--- a/include/command.h
+++ b/include/command.h
@@ -22,6 +22,7 @@
 
 #define CMD_FLAG_GLOBAL                (1<<31) /* don't iterate "args" */
 #define CMD_FLAG_FOREIGN_OK    (1<<30) /* command not restricted to XFS */
+#define CMD_FLAG_GENERIC       (1<<29) /* command is generic (help, quit) */
 
 typedef int (*cfunc_t)(int argc, char **argv);
 typedef void (*helpfunc_t)(void);
diff --git a/libxcmd/help.c b/libxcmd/help.c
index fad0ab9..be26765 100644
--- a/libxcmd/help.c
+++ b/libxcmd/help.c
@@ -88,7 +88,8 @@ help_init(void)
        help_cmd.cfunc = help_f;
        help_cmd.argmin = 0;
        help_cmd.argmax = 1;
-       help_cmd.flags = CMD_FLAG_GLOBAL;
+       help_cmd.flags = CMD_FLAG_GLOBAL | CMD_FLAG_FOREIGN_OK |
+               CMD_FLAG_GENERIC;
        help_cmd.args = _("[command]");
        help_cmd.oneline = _("help for one or all commands");
 
diff --git a/libxcmd/quit.c b/libxcmd/quit.c
index 0183b8f..2a27c89 100644
--- a/libxcmd/quit.c
+++ b/libxcmd/quit.c
@@ -38,7 +38,8 @@ quit_init(void)
        quit_cmd.cfunc = quit_f;
        quit_cmd.argmin = -1;
        quit_cmd.argmax = -1;
-       quit_cmd.flags = CMD_FLAG_GLOBAL;
+       quit_cmd.flags = CMD_FLAG_GLOBAL | CMD_FLAG_FOREIGN_OK |
+               CMD_FLAG_GENERIC;
        quit_cmd.oneline = _("exit the program");
 
        add_command(&quit_cmd);
diff --git a/quota/init.c b/quota/init.c
index d5d80c2..85931bf 100644
--- a/quota/init.c
+++ b/quota/init.c
@@ -104,7 +104,8 @@ init_check_command(
        const cmdinfo_t *ct)
 {
        if (fs_path &&
-           !(ct->flags & CMD_FLAG_FOREIGN_OK) &&
+           !((ct->flags & CMD_FLAG_FOREIGN_OK) && foreign_allowed) &&
+           !(ct->flags & CMD_FLAG_GENERIC) &&
             (fs_path->fs_flags & FS_FOREIGN)) {
                fprintf(stderr,
        _("foreign mount active, %s command is for XFS filesystems only\n"),
-- 
2.7.4