mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 20:53:53 +08:00
b716395e2b
OpenVZ Linux kernel team has discovered the problem with 32bit quota tools
working on 64bit architectures. In 2.6.10 kernel sys32_quotactl() function
was replaced by sys_quotactl() with the comment "sys_quotactl seems to be
32/64bit clean, enable it for 32bit" However this isn't right. Look at
if_dqblk structure:
struct if_dqblk {
__u64 dqb_bhardlimit;
__u64 dqb_bsoftlimit;
__u64 dqb_curspace;
__u64 dqb_ihardlimit;
__u64 dqb_isoftlimit;
__u64 dqb_curinodes;
__u64 dqb_btime;
__u64 dqb_itime;
__u32 dqb_valid;
};
For 32 bit quota tools sizeof(if_dqblk) == 0x44.
But for 64 bit kernel its size is 0x48, 'cause of alignment!
Thus we got a problem. Attached patch reintroduce sys32_quotactl() function,
that handles this and related situations.
[michal.k.k.piotrowski@gmail.com: build fix]
[akpm@linux-foundation.org: Make it link with CONFIG_QUOTA=n]
Signed-off-by: Vasily Tarasov <vtaras@openvz.org>
Cc: Andi Kleen <ak@suse.de>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Jan Kara <jack@ucw.cz>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
152 lines
4.1 KiB
C
152 lines
4.1 KiB
C
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#include <linux/linkage.h>
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#include <linux/errno.h>
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#include <asm/unistd.h>
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/*
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* Non-implemented system calls get redirected here.
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*/
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asmlinkage long sys_ni_syscall(void)
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{
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return -ENOSYS;
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}
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cond_syscall(sys_nfsservctl);
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cond_syscall(sys_quotactl);
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cond_syscall(sys32_quotactl);
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cond_syscall(sys_acct);
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cond_syscall(sys_lookup_dcookie);
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cond_syscall(sys_swapon);
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cond_syscall(sys_swapoff);
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cond_syscall(sys_kexec_load);
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cond_syscall(compat_sys_kexec_load);
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cond_syscall(sys_init_module);
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cond_syscall(sys_delete_module);
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cond_syscall(sys_socketpair);
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cond_syscall(sys_bind);
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cond_syscall(sys_listen);
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cond_syscall(sys_accept);
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cond_syscall(sys_connect);
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cond_syscall(sys_getsockname);
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cond_syscall(sys_getpeername);
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cond_syscall(sys_sendto);
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cond_syscall(sys_send);
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cond_syscall(sys_recvfrom);
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cond_syscall(sys_recv);
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cond_syscall(sys_socket);
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cond_syscall(sys_setsockopt);
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cond_syscall(sys_getsockopt);
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cond_syscall(sys_shutdown);
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cond_syscall(sys_sendmsg);
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cond_syscall(sys_recvmsg);
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cond_syscall(sys_socketcall);
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cond_syscall(sys_futex);
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cond_syscall(compat_sys_futex);
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cond_syscall(sys_set_robust_list);
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cond_syscall(compat_sys_set_robust_list);
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cond_syscall(sys_get_robust_list);
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cond_syscall(compat_sys_get_robust_list);
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cond_syscall(sys_epoll_create);
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cond_syscall(sys_epoll_ctl);
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cond_syscall(sys_epoll_wait);
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cond_syscall(sys_epoll_pwait);
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cond_syscall(sys_semget);
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cond_syscall(sys_semop);
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cond_syscall(sys_semtimedop);
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cond_syscall(sys_semctl);
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cond_syscall(sys_msgget);
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cond_syscall(sys_msgsnd);
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cond_syscall(sys_msgrcv);
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cond_syscall(sys_msgctl);
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cond_syscall(sys_shmget);
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cond_syscall(sys_shmat);
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cond_syscall(sys_shmdt);
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cond_syscall(sys_shmctl);
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cond_syscall(sys_mq_open);
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cond_syscall(sys_mq_unlink);
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cond_syscall(sys_mq_timedsend);
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cond_syscall(sys_mq_timedreceive);
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cond_syscall(sys_mq_notify);
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cond_syscall(sys_mq_getsetattr);
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cond_syscall(compat_sys_mq_open);
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cond_syscall(compat_sys_mq_timedsend);
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cond_syscall(compat_sys_mq_timedreceive);
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cond_syscall(compat_sys_mq_notify);
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cond_syscall(compat_sys_mq_getsetattr);
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cond_syscall(sys_mbind);
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cond_syscall(sys_get_mempolicy);
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cond_syscall(sys_set_mempolicy);
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cond_syscall(compat_sys_mbind);
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cond_syscall(compat_sys_get_mempolicy);
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cond_syscall(compat_sys_set_mempolicy);
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cond_syscall(sys_add_key);
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cond_syscall(sys_request_key);
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cond_syscall(sys_keyctl);
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cond_syscall(compat_sys_keyctl);
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cond_syscall(compat_sys_socketcall);
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cond_syscall(sys_inotify_init);
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cond_syscall(sys_inotify_add_watch);
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cond_syscall(sys_inotify_rm_watch);
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cond_syscall(sys_migrate_pages);
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cond_syscall(sys_move_pages);
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cond_syscall(sys_chown16);
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cond_syscall(sys_fchown16);
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cond_syscall(sys_getegid16);
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cond_syscall(sys_geteuid16);
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cond_syscall(sys_getgid16);
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cond_syscall(sys_getgroups16);
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cond_syscall(sys_getresgid16);
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cond_syscall(sys_getresuid16);
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cond_syscall(sys_getuid16);
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cond_syscall(sys_lchown16);
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cond_syscall(sys_setfsgid16);
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cond_syscall(sys_setfsuid16);
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cond_syscall(sys_setgid16);
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cond_syscall(sys_setgroups16);
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cond_syscall(sys_setregid16);
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cond_syscall(sys_setresgid16);
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cond_syscall(sys_setresuid16);
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cond_syscall(sys_setreuid16);
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cond_syscall(sys_setuid16);
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cond_syscall(sys_vm86old);
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cond_syscall(sys_vm86);
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cond_syscall(compat_sys_ipc);
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cond_syscall(compat_sys_sysctl);
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/* arch-specific weak syscall entries */
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cond_syscall(sys_pciconfig_read);
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cond_syscall(sys_pciconfig_write);
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cond_syscall(sys_pciconfig_iobase);
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cond_syscall(sys32_ipc);
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cond_syscall(sys32_sysctl);
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cond_syscall(ppc_rtas);
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cond_syscall(sys_spu_run);
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cond_syscall(sys_spu_create);
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/* mmu depending weak syscall entries */
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cond_syscall(sys_mprotect);
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cond_syscall(sys_msync);
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cond_syscall(sys_mlock);
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cond_syscall(sys_munlock);
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cond_syscall(sys_mlockall);
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cond_syscall(sys_munlockall);
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cond_syscall(sys_mincore);
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cond_syscall(sys_madvise);
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cond_syscall(sys_mremap);
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cond_syscall(sys_remap_file_pages);
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cond_syscall(compat_sys_move_pages);
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cond_syscall(compat_sys_migrate_pages);
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/* block-layer dependent */
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cond_syscall(sys_bdflush);
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cond_syscall(sys_ioprio_set);
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cond_syscall(sys_ioprio_get);
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/* New file descriptors */
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cond_syscall(sys_signalfd);
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cond_syscall(sys_timerfd);
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cond_syscall(compat_sys_signalfd);
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cond_syscall(compat_sys_timerfd);
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cond_syscall(sys_eventfd);
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