diff mbox series

[v6,2/3] syscalls/quotactl07: Refactor this case

Message ID 1641973691-22981-2-git-send-email-xuyang2018.jy@fujitsu.com
State Accepted
Headers show
Series [v6,1/3] syscalls/quotactl09: Test error when quota info hidden in filesystem | expand

Commit Message

Yang Xu Jan. 12, 2022, 7:48 a.m. UTC
man-pages has error that Q_XQUOTARM was not introduced by kernel
3.16[1][2]. It only doesn't have owner handler so the flag spaces overlap
a bit[3].

Add a functional test for Q_XQUOTARM and check whether available block
is greater than before instead of a regression test for buggy 3.16 kernel
because it is about 8 year old. Functional test is more meaningful.

Since kernel commit 40b52225e ("xfs: remove support for disabling quota
accounting on a mounted file system")[4] was introduced, if we want to
disable quota account feature before Q_XQUOTARM, we must need to remount
with noquota like xfs maintainer does in xfstests xfs/220 [5].

So, change this by mount with usrquota and remount with noquota to create
a test environment that superblock has quota data but quota feature not running.

We also add quotactl_fd test variant for this test.

[1]https://github.com/alejandro-colomar/man-pages/commit/38bccbcf4f51c5370a1060e6a80b90d68b0dcdc8
[2]https://github.com/alejandro-colomar/man-pages/commit/26f3978f04a1aeeb5397a5facebaef40a341afb6
[3]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9da93f9b7c
[4]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=40b52225e58
[5]https://patchwork.kernel.org/project/fstests/patch/20220105195352.GM656707@magnolia/

Signed-off-by: Yang Xu <xuyang2018.jy@fujitsu.com>
---
 .../kernel/syscalls/quotactl/quotactl07.c     | 58 +++++++++++++------
 1 file changed, 40 insertions(+), 18 deletions(-)

Comments

Cyril Hrubis Jan. 13, 2022, 2:03 p.m. UTC | #1
Hi!
> diff --git a/testcases/kernel/syscalls/quotactl/quotactl07.c b/testcases/kernel/syscalls/quotactl/quotactl07.c
> index 2992a6112..2427ef682 100644
> --- a/testcases/kernel/syscalls/quotactl/quotactl07.c
> +++ b/testcases/kernel/syscalls/quotactl/quotactl07.c
> @@ -7,7 +7,9 @@
>  /*\
>   * [Description]
>   *
> - * This is a regresstion test for kernel commit 3dd4d40b4208
> + * This is not only a functional test but also a error test for Q_XQUOTARM.
> + *
> + * It is a regresstion test for kernel commit 3dd4d40b4208
>   * ("xfs: Sanity check flags of Q_XQUOTARM call").
>   */
>  
> @@ -15,51 +17,71 @@
>  #include <unistd.h>
>  #include <stdio.h>
>  #include <sys/quota.h>
> +#include <sys/statvfs.h>
>  #include "tst_test.h"
> -#include "lapi/quotactl.h"
> +#include "quotactl_syscall_var.h"
>  
>  #ifdef HAVE_XFS_XQM_H
>  # include <xfs/xqm.h>
>  
> -#define MNTPOINT    "mntpoint"
> -
> -static uint32_t qflag_acct = XFS_QUOTA_UDQ_ACCT;
> -static unsigned int valid_type = XFS_USER_QUOTA;
>  /* Include a valid quota type to avoid other EINVAL error */
>  static unsigned int invalid_type = XFS_GROUP_QUOTA << 1 | XFS_USER_QUOTA;
> +static unsigned int valid_type = XFS_USER_QUOTA;
> +static int mount_flag;
>  
>  static void verify_quota(void)
>  {
> -	TEST(quotactl(QCMD(Q_XQUOTARM, USRQUOTA), tst_device->dev, 0, (void *)&invalid_type));
> -	if (TST_ERR == EINVAL)
> -		tst_res(TPASS, "Q_XQUOTARM has quota type check");
> +	struct statfs before, after;
> +
> +	SAFE_STATFS(MNTPOINT, &before);
> +	TST_EXP_PASS(do_quotactl(fd, QCMD(Q_XQUOTARM, USRQUOTA), tst_device->dev, 0,
> +			(void *)&valid_type), "do_quotactl(Q_XQUOTARM,valid_type)");
> +	SAFE_STATFS(MNTPOINT, &after);
> +	if (before.f_bavail <= after.f_bavail)
> +		tst_res(TPASS, "Q_XQUOTARM to free space, delta(%lu)", after.f_bavail - before.f_bavail);
>  	else
> -		tst_res(TFAIL, "Q_XQUOTARM doesn't have quota type check");
> +		tst_res(TFAIL, "Q_XQUOTARM to free space, delta(-%lu)", before.f_bavail - after.f_bavail);
> +
> +	TST_EXP_FAIL(do_quotactl(fd, QCMD(Q_XQUOTARM, USRQUOTA), tst_device->dev, 0,
> +			(void *)&invalid_type), EINVAL, "do_quotactl(Q_XQUOTARM, invalid_type)");
>  }
>  
>  static void setup(void)
>  {
> -	TEST(quotactl(QCMD(Q_XQUOTAOFF, USRQUOTA), tst_device->dev, 0, (void *)&qflag_acct));
> -	if (TST_RET == -1)
> -		tst_brk(TBROK | TTERRNO, "quotactl with Q_XQUOTAOFF failed");
> +	quotactl_info();
> +
> +	/* ensure superblock has quota data, but not running */
> +	SAFE_MOUNT(tst_device->dev, MNTPOINT, tst_device->fs_type, 0, "usrquota");
> +	mount_flag = 1;
> +	SAFE_UMOUNT(MNTPOINT);
> +	mount_flag = 0;
> +	SAFE_MOUNT(tst_device->dev, MNTPOINT, tst_device->fs_type, 0, "noquota");
> +	mount_flag = 1;

Maybe just SAFE_MOUNT(tst_device->dev, MNTPOINT, tst_device->fs_type, 0, "remount, noquota") ?

If we can remount the device without umounting it the code would be a
bit shorter.

Anyways looks good to me:

Reviewed-by: Cyril Hrubis <chrubis@suse.cz>
Yang Xu Jan. 14, 2022, 3:29 a.m. UTC | #2
Hi Cyril
> Hi!
>> diff --git a/testcases/kernel/syscalls/quotactl/quotactl07.c b/testcases/kernel/syscalls/quotactl/quotactl07.c
>> index 2992a6112..2427ef682 100644
>> --- a/testcases/kernel/syscalls/quotactl/quotactl07.c
>> +++ b/testcases/kernel/syscalls/quotactl/quotactl07.c
>> @@ -7,7 +7,9 @@
>>   /*\
>>    * [Description]
>>    *
>> - * This is a regresstion test for kernel commit 3dd4d40b4208
>> + * This is not only a functional test but also a error test for Q_XQUOTARM.
>> + *
>> + * It is a regresstion test for kernel commit 3dd4d40b4208
>>    * ("xfs: Sanity check flags of Q_XQUOTARM call").
>>    */
>>
>> @@ -15,51 +17,71 @@
>>   #include<unistd.h>
>>   #include<stdio.h>
>>   #include<sys/quota.h>
>> +#include<sys/statvfs.h>
>>   #include "tst_test.h"
>> -#include "lapi/quotactl.h"
>> +#include "quotactl_syscall_var.h"
>>
>>   #ifdef HAVE_XFS_XQM_H
>>   # include<xfs/xqm.h>
>>
>> -#define MNTPOINT    "mntpoint"
>> -
>> -static uint32_t qflag_acct = XFS_QUOTA_UDQ_ACCT;
>> -static unsigned int valid_type = XFS_USER_QUOTA;
>>   /* Include a valid quota type to avoid other EINVAL error */
>>   static unsigned int invalid_type = XFS_GROUP_QUOTA<<  1 | XFS_USER_QUOTA;
>> +static unsigned int valid_type = XFS_USER_QUOTA;
>> +static int mount_flag;
>>
>>   static void verify_quota(void)
>>   {
>> -	TEST(quotactl(QCMD(Q_XQUOTARM, USRQUOTA), tst_device->dev, 0, (void *)&invalid_type));
>> -	if (TST_ERR == EINVAL)
>> -		tst_res(TPASS, "Q_XQUOTARM has quota type check");
>> +	struct statfs before, after;
>> +
>> +	SAFE_STATFS(MNTPOINT,&before);
>> +	TST_EXP_PASS(do_quotactl(fd, QCMD(Q_XQUOTARM, USRQUOTA), tst_device->dev, 0,
>> +			(void *)&valid_type), "do_quotactl(Q_XQUOTARM,valid_type)");
>> +	SAFE_STATFS(MNTPOINT,&after);
>> +	if (before.f_bavail<= after.f_bavail)
>> +		tst_res(TPASS, "Q_XQUOTARM to free space, delta(%lu)", after.f_bavail - before.f_bavail);
>>   	else
>> -		tst_res(TFAIL, "Q_XQUOTARM doesn't have quota type check");
>> +		tst_res(TFAIL, "Q_XQUOTARM to free space, delta(-%lu)", before.f_bavail - after.f_bavail);
>> +
>> +	TST_EXP_FAIL(do_quotactl(fd, QCMD(Q_XQUOTARM, USRQUOTA), tst_device->dev, 0,
>> +			(void *)&invalid_type), EINVAL, "do_quotactl(Q_XQUOTARM, invalid_type)");
>>   }
>>
>>   static void setup(void)
>>   {
>> -	TEST(quotactl(QCMD(Q_XQUOTAOFF, USRQUOTA), tst_device->dev, 0, (void *)&qflag_acct));
>> -	if (TST_RET == -1)
>> -		tst_brk(TBROK | TTERRNO, "quotactl with Q_XQUOTAOFF failed");
>> +	quotactl_info();
>> +
>> +	/* ensure superblock has quota data, but not running */
>> +	SAFE_MOUNT(tst_device->dev, MNTPOINT, tst_device->fs_type, 0, "usrquota");
>> +	mount_flag = 1;
>> +	SAFE_UMOUNT(MNTPOINT);
>> +	mount_flag = 0;
>> +	SAFE_MOUNT(tst_device->dev, MNTPOINT, tst_device->fs_type, 0, "noquota");
>> +	mount_flag = 1;
>
> Maybe just SAFE_MOUNT(tst_device->dev, MNTPOINT, tst_device->fs_type, 0, "remount, noquota") ?
>
> If we can remount the device without umounting it the code would be a
> bit shorter.
>
It seems use MS_REMOUNT flag doesn't work well, the quota feature is 
still on and will report EINVAL error when using Q_XQUOTARM syscall.

Also, send a email to xfs maintainer to prove whether  it is a expected 
behaviour.

ps: I will merge this first, then I will add a comment to clarify this 
when I know the reason for xfs maintainer.

Best Regards
Yang Xu
> Anyways looks good to me:
>
> Reviewed-by: Cyril Hrubis<chrubis@suse.cz>
>
diff mbox series

Patch

diff --git a/testcases/kernel/syscalls/quotactl/quotactl07.c b/testcases/kernel/syscalls/quotactl/quotactl07.c
index 2992a6112..2427ef682 100644
--- a/testcases/kernel/syscalls/quotactl/quotactl07.c
+++ b/testcases/kernel/syscalls/quotactl/quotactl07.c
@@ -7,7 +7,9 @@ 
 /*\
  * [Description]
  *
- * This is a regresstion test for kernel commit 3dd4d40b4208
+ * This is not only a functional test but also a error test for Q_XQUOTARM.
+ *
+ * It is a regresstion test for kernel commit 3dd4d40b4208
  * ("xfs: Sanity check flags of Q_XQUOTARM call").
  */
 
@@ -15,51 +17,71 @@ 
 #include <unistd.h>
 #include <stdio.h>
 #include <sys/quota.h>
+#include <sys/statvfs.h>
 #include "tst_test.h"
-#include "lapi/quotactl.h"
+#include "quotactl_syscall_var.h"
 
 #ifdef HAVE_XFS_XQM_H
 # include <xfs/xqm.h>
 
-#define MNTPOINT    "mntpoint"
-
-static uint32_t qflag_acct = XFS_QUOTA_UDQ_ACCT;
-static unsigned int valid_type = XFS_USER_QUOTA;
 /* Include a valid quota type to avoid other EINVAL error */
 static unsigned int invalid_type = XFS_GROUP_QUOTA << 1 | XFS_USER_QUOTA;
+static unsigned int valid_type = XFS_USER_QUOTA;
+static int mount_flag;
 
 static void verify_quota(void)
 {
-	TEST(quotactl(QCMD(Q_XQUOTARM, USRQUOTA), tst_device->dev, 0, (void *)&invalid_type));
-	if (TST_ERR == EINVAL)
-		tst_res(TPASS, "Q_XQUOTARM has quota type check");
+	struct statfs before, after;
+
+	SAFE_STATFS(MNTPOINT, &before);
+	TST_EXP_PASS(do_quotactl(fd, QCMD(Q_XQUOTARM, USRQUOTA), tst_device->dev, 0,
+			(void *)&valid_type), "do_quotactl(Q_XQUOTARM,valid_type)");
+	SAFE_STATFS(MNTPOINT, &after);
+	if (before.f_bavail <= after.f_bavail)
+		tst_res(TPASS, "Q_XQUOTARM to free space, delta(%lu)", after.f_bavail - before.f_bavail);
 	else
-		tst_res(TFAIL, "Q_XQUOTARM doesn't have quota type check");
+		tst_res(TFAIL, "Q_XQUOTARM to free space, delta(-%lu)", before.f_bavail - after.f_bavail);
+
+	TST_EXP_FAIL(do_quotactl(fd, QCMD(Q_XQUOTARM, USRQUOTA), tst_device->dev, 0,
+			(void *)&invalid_type), EINVAL, "do_quotactl(Q_XQUOTARM, invalid_type)");
 }
 
 static void setup(void)
 {
-	TEST(quotactl(QCMD(Q_XQUOTAOFF, USRQUOTA), tst_device->dev, 0, (void *)&qflag_acct));
-	if (TST_RET == -1)
-		tst_brk(TBROK | TTERRNO, "quotactl with Q_XQUOTAOFF failed");
+	quotactl_info();
+
+	/* ensure superblock has quota data, but not running */
+	SAFE_MOUNT(tst_device->dev, MNTPOINT, tst_device->fs_type, 0, "usrquota");
+	mount_flag = 1;
+	SAFE_UMOUNT(MNTPOINT);
+	mount_flag = 0;
+	SAFE_MOUNT(tst_device->dev, MNTPOINT, tst_device->fs_type, 0, "noquota");
+	mount_flag = 1;
 
-	TEST(quotactl(QCMD(Q_XQUOTARM, USRQUOTA), tst_device->dev, 0, (void *)&valid_type));
-	if (TST_ERR == EINVAL)
-		tst_brk(TCONF, "current system doesn't support Q_XQUOTARM, skip it");
+	fd = SAFE_OPEN(MNTPOINT, O_RDONLY);
+}
+
+static void cleanup(void)
+{
+	if (fd > -1)
+		SAFE_CLOSE(fd);
+	if (mount_flag && tst_umount(MNTPOINT))
+		tst_res(TWARN | TERRNO, "umount(%s)", MNTPOINT);
 }
 
 static struct tst_test test = {
 	.setup = setup,
+	.cleanup = cleanup,
 	.needs_root = 1,
 	.needs_kconfigs = (const char *[]) {
 		"CONFIG_XFS_QUOTA",
 		NULL
 	},
 	.test_all = verify_quota,
-	.mount_device = 1,
+	.format_device = 1,
 	.dev_fs_type = "xfs",
-	.mnt_data = "usrquota",
 	.mntpoint = MNTPOINT,
+	.test_variants = QUOTACTL_SYSCALL_VARIANTS,
 	.tags = (const struct tst_tag[]) {
 		{"linux-git", "3dd4d40b4208"},
 		{}