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jankarajankara
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quota: Disable quotactl_path syscall
In commit fa8b900 ("quota: wire up quotactl_path") we have wired up new quotactl_path syscall. However some people in LWN discussion have objected that the path based syscall is missing dirfd and flags argument which is mostly standard for contemporary path based syscalls. Indeed they have a point and after a discussion with Christian Brauner and Sascha Hauer I've decided to disable the syscall for now and update its API. Since there is no userspace currently using that syscall and it hasn't been released in any major release, we should be fine. CC: Christian Brauner <christian.brauner@ubuntu.com> CC: Sascha Hauer <s.hauer@pengutronix.de> Link: https://lore.kernel.org/lkml/20210512153621.n5u43jsytbik4yze@wittgenstein Signed-off-by: Jan Kara <jack@suse.cz>
1 parent 8c721cb commit 5b9fedb

17 files changed

Lines changed: 17 additions & 18 deletions

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‎arch/alpha/kernel/syscalls/syscall.tbl‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -482,7 +482,7 @@
482482
550 common process_madvise sys_process_madvise
483483
551 common epoll_pwait2 sys_epoll_pwait2
484484
552 common mount_setattr sys_mount_setattr
485-
553 common quotactl_path sys_quotactl_path
485+
# 553 reserved for quotactl_path
486486
554 common landlock_create_ruleset sys_landlock_create_ruleset
487487
555 common landlock_add_rule sys_landlock_add_rule
488488
556 common landlock_restrict_self sys_landlock_restrict_self

‎arch/arm/tools/syscall.tbl‎

Lines changed: 1 addition & 1 deletion
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@@ -456,7 +456,7 @@
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440 common process_madvise sys_process_madvise
457457
441 common epoll_pwait2 sys_epoll_pwait2
458458
442 common mount_setattr sys_mount_setattr
459-
443 common quotactl_path sys_quotactl_path
459+
# 443 reserved for quotactl_path
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444 common landlock_create_ruleset sys_landlock_create_ruleset
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445 common landlock_add_rule sys_landlock_add_rule
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446 common landlock_restrict_self sys_landlock_restrict_self

‎arch/arm64/include/asm/unistd32.h‎

Lines changed: 1 addition & 2 deletions
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@@ -893,8 +893,7 @@ __SYSCALL(__NR_process_madvise, sys_process_madvise)
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__SYSCALL(__NR_epoll_pwait2, compat_sys_epoll_pwait2)
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#define __NR_mount_setattr 442
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__SYSCALL(__NR_mount_setattr, sys_mount_setattr)
896-
#define __NR_quotactl_path 443
897-
__SYSCALL(__NR_quotactl_path, sys_quotactl_path)
896+
/* 443 is reserved for quotactl_path */
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#define __NR_landlock_create_ruleset 444
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__SYSCALL(__NR_landlock_create_ruleset, sys_landlock_create_ruleset)
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#define __NR_landlock_add_rule 445

‎arch/ia64/kernel/syscalls/syscall.tbl‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -363,7 +363,7 @@
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440 common process_madvise sys_process_madvise
364364
441 common epoll_pwait2 sys_epoll_pwait2
365365
442 common mount_setattr sys_mount_setattr
366-
443 common quotactl_path sys_quotactl_path
366+
# 443 reserved for quotactl_path
367367
444 common landlock_create_ruleset sys_landlock_create_ruleset
368368
445 common landlock_add_rule sys_landlock_add_rule
369369
446 common landlock_restrict_self sys_landlock_restrict_self

‎arch/m68k/kernel/syscalls/syscall.tbl‎

Lines changed: 1 addition & 1 deletion
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@@ -442,7 +442,7 @@
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440 common process_madvise sys_process_madvise
443443
441 common epoll_pwait2 sys_epoll_pwait2
444444
442 common mount_setattr sys_mount_setattr
445-
443 common quotactl_path sys_quotactl_path
445+
# 443 reserved for quotactl_path
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444 common landlock_create_ruleset sys_landlock_create_ruleset
447447
445 common landlock_add_rule sys_landlock_add_rule
448448
446 common landlock_restrict_self sys_landlock_restrict_self

‎arch/microblaze/kernel/syscalls/syscall.tbl‎

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@@ -448,7 +448,7 @@
448448
440 common process_madvise sys_process_madvise
449449
441 common epoll_pwait2 sys_epoll_pwait2
450450
442 common mount_setattr sys_mount_setattr
451-
443 common quotactl_path sys_quotactl_path
451+
# 443 reserved for quotactl_path
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444 common landlock_create_ruleset sys_landlock_create_ruleset
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445 common landlock_add_rule sys_landlock_add_rule
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446 common landlock_restrict_self sys_landlock_restrict_self

‎arch/mips/kernel/syscalls/syscall_n32.tbl‎

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@@ -381,7 +381,7 @@
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440 n32 process_madvise sys_process_madvise
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441 n32 epoll_pwait2 compat_sys_epoll_pwait2
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442 n32 mount_setattr sys_mount_setattr
384-
443 n32 quotactl_path sys_quotactl_path
384+
# 443 reserved for quotactl_path
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444 n32 landlock_create_ruleset sys_landlock_create_ruleset
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445 n32 landlock_add_rule sys_landlock_add_rule
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446 n32 landlock_restrict_self sys_landlock_restrict_self

‎arch/mips/kernel/syscalls/syscall_n64.tbl‎

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@@ -357,7 +357,7 @@
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440 n64 process_madvise sys_process_madvise
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441 n64 epoll_pwait2 sys_epoll_pwait2
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442 n64 mount_setattr sys_mount_setattr
360-
443 n64 quotactl_path sys_quotactl_path
360+
# 443 reserved for quotactl_path
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444 n64 landlock_create_ruleset sys_landlock_create_ruleset
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445 n64 landlock_add_rule sys_landlock_add_rule
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446 n64 landlock_restrict_self sys_landlock_restrict_self

‎arch/mips/kernel/syscalls/syscall_o32.tbl‎

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@@ -430,7 +430,7 @@
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440 o32 process_madvise sys_process_madvise
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441 o32 epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2
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442 o32 mount_setattr sys_mount_setattr
433-
443 o32 quotactl_path sys_quotactl_path
433+
# 443 reserved for quotactl_path
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444 o32 landlock_create_ruleset sys_landlock_create_ruleset
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445 o32 landlock_add_rule sys_landlock_add_rule
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446 o32 landlock_restrict_self sys_landlock_restrict_self

‎arch/parisc/kernel/syscalls/syscall.tbl‎

Lines changed: 1 addition & 1 deletion
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@@ -440,7 +440,7 @@
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440 common process_madvise sys_process_madvise
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441 common epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2
442442
442 common mount_setattr sys_mount_setattr
443-
443 common quotactl_path sys_quotactl_path
443+
# 443 reserved for quotactl_path
444444
444 common landlock_create_ruleset sys_landlock_create_ruleset
445445
445 common landlock_add_rule sys_landlock_add_rule
446446
446 common landlock_restrict_self sys_landlock_restrict_self

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