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authorLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2008-04-17 22:43:35 -0400
committerLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2008-04-17 22:43:35 -0400
commit3b2816be271b8b364294a5b48721a3e68af46cfa (patch)
tree1e40214091bb6736249d3ce442a13ef7e9dfdc82 /fs/xfs
parentf6e9f28865552bd9d79a9df93cf120436b073223 (diff)
[XFS] The forward declarations for the xfs_ioctl() helpers and the
associated comment about gcc behavior really aren't needed; all of these functions are marked STATIC which includes noinline, and the stack usage won't be a problem. This effectively just removes the forward declarations and moves xfs_ioctl() back to the end of the file. SGI-PV: 971186 SGI-Modid: xfs-linux-melb:xfs-kern:30534a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Niv Sardi <xaiki@sgi.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/linux-2.6/xfs_ioctl.c314
1 files changed, 2 insertions, 312 deletions
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index c6399b2cf17c..640c8b6b1956 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -651,314 +651,6 @@ xfs_attrmulti_by_handle(
651 return -error; 651 return -error;
652} 652}
653 653
654/* prototypes for a few of the stack-hungry cases that have
655 * their own functions. Functions are defined after their use
656 * so gcc doesn't get fancy and inline them with -03 */
657
658STATIC int
659xfs_ioc_space(
660 struct xfs_inode *ip,
661 struct inode *inode,
662 struct file *filp,
663 int flags,
664 unsigned int cmd,
665 void __user *arg);
666
667STATIC int
668xfs_ioc_bulkstat(
669 xfs_mount_t *mp,
670 unsigned int cmd,
671 void __user *arg);
672
673STATIC int
674xfs_ioc_fsgeometry_v1(
675 xfs_mount_t *mp,
676 void __user *arg);
677
678STATIC int
679xfs_ioc_fsgeometry(
680 xfs_mount_t *mp,
681 void __user *arg);
682
683STATIC int
684xfs_ioc_xattr(
685 xfs_inode_t *ip,
686 struct file *filp,
687 unsigned int cmd,
688 void __user *arg);
689
690STATIC int
691xfs_ioc_fsgetxattr(
692 xfs_inode_t *ip,
693 int attr,
694 void __user *arg);
695
696STATIC int
697xfs_ioc_getbmap(
698 struct xfs_inode *ip,
699 int flags,
700 unsigned int cmd,
701 void __user *arg);
702
703STATIC int
704xfs_ioc_getbmapx(
705 struct xfs_inode *ip,
706 void __user *arg);
707
708int
709xfs_ioctl(
710 xfs_inode_t *ip,
711 struct file *filp,
712 int ioflags,
713 unsigned int cmd,
714 void __user *arg)
715{
716 struct inode *inode = filp->f_path.dentry->d_inode;
717 xfs_mount_t *mp = ip->i_mount;
718 int error;
719
720 xfs_itrace_entry(XFS_I(inode));
721 switch (cmd) {
722
723 case XFS_IOC_ALLOCSP:
724 case XFS_IOC_FREESP:
725 case XFS_IOC_RESVSP:
726 case XFS_IOC_UNRESVSP:
727 case XFS_IOC_ALLOCSP64:
728 case XFS_IOC_FREESP64:
729 case XFS_IOC_RESVSP64:
730 case XFS_IOC_UNRESVSP64:
731 /*
732 * Only allow the sys admin to reserve space unless
733 * unwritten extents are enabled.
734 */
735 if (!xfs_sb_version_hasextflgbit(&mp->m_sb) &&
736 !capable(CAP_SYS_ADMIN))
737 return -EPERM;
738
739 return xfs_ioc_space(ip, inode, filp, ioflags, cmd, arg);
740
741 case XFS_IOC_DIOINFO: {
742 struct dioattr da;
743 xfs_buftarg_t *target =
744 XFS_IS_REALTIME_INODE(ip) ?
745 mp->m_rtdev_targp : mp->m_ddev_targp;
746
747 da.d_mem = da.d_miniosz = 1 << target->bt_sshift;
748 da.d_maxiosz = INT_MAX & ~(da.d_miniosz - 1);
749
750 if (copy_to_user(arg, &da, sizeof(da)))
751 return -XFS_ERROR(EFAULT);
752 return 0;
753 }
754
755 case XFS_IOC_FSBULKSTAT_SINGLE:
756 case XFS_IOC_FSBULKSTAT:
757 case XFS_IOC_FSINUMBERS:
758 return xfs_ioc_bulkstat(mp, cmd, arg);
759
760 case XFS_IOC_FSGEOMETRY_V1:
761 return xfs_ioc_fsgeometry_v1(mp, arg);
762
763 case XFS_IOC_FSGEOMETRY:
764 return xfs_ioc_fsgeometry(mp, arg);
765
766 case XFS_IOC_GETVERSION:
767 return put_user(inode->i_generation, (int __user *)arg);
768
769 case XFS_IOC_FSGETXATTR:
770 return xfs_ioc_fsgetxattr(ip, 0, arg);
771 case XFS_IOC_FSGETXATTRA:
772 return xfs_ioc_fsgetxattr(ip, 1, arg);
773 case XFS_IOC_GETXFLAGS:
774 case XFS_IOC_SETXFLAGS:
775 case XFS_IOC_FSSETXATTR:
776 return xfs_ioc_xattr(ip, filp, cmd, arg);
777
778 case XFS_IOC_FSSETDM: {
779 struct fsdmidata dmi;
780
781 if (copy_from_user(&dmi, arg, sizeof(dmi)))
782 return -XFS_ERROR(EFAULT);
783
784 error = xfs_set_dmattrs(ip, dmi.fsd_dmevmask,
785 dmi.fsd_dmstate);
786 return -error;
787 }
788
789 case XFS_IOC_GETBMAP:
790 case XFS_IOC_GETBMAPA:
791 return xfs_ioc_getbmap(ip, ioflags, cmd, arg);
792
793 case XFS_IOC_GETBMAPX:
794 return xfs_ioc_getbmapx(ip, arg);
795
796 case XFS_IOC_FD_TO_HANDLE:
797 case XFS_IOC_PATH_TO_HANDLE:
798 case XFS_IOC_PATH_TO_FSHANDLE:
799 return xfs_find_handle(cmd, arg);
800
801 case XFS_IOC_OPEN_BY_HANDLE:
802 return xfs_open_by_handle(mp, arg, filp, inode);
803
804 case XFS_IOC_FSSETDM_BY_HANDLE:
805 return xfs_fssetdm_by_handle(mp, arg, inode);
806
807 case XFS_IOC_READLINK_BY_HANDLE:
808 return xfs_readlink_by_handle(mp, arg, inode);
809
810 case XFS_IOC_ATTRLIST_BY_HANDLE:
811 return xfs_attrlist_by_handle(mp, arg, inode);
812
813 case XFS_IOC_ATTRMULTI_BY_HANDLE:
814 return xfs_attrmulti_by_handle(mp, arg, inode);
815
816 case XFS_IOC_SWAPEXT: {
817 error = xfs_swapext((struct xfs_swapext __user *)arg);
818 return -error;
819 }
820
821 case XFS_IOC_FSCOUNTS: {
822 xfs_fsop_counts_t out;
823
824 error = xfs_fs_counts(mp, &out);
825 if (error)
826 return -error;
827
828 if (copy_to_user(arg, &out, sizeof(out)))
829 return -XFS_ERROR(EFAULT);
830 return 0;
831 }
832
833 case XFS_IOC_SET_RESBLKS: {
834 xfs_fsop_resblks_t inout;
835 __uint64_t in;
836
837 if (!capable(CAP_SYS_ADMIN))
838 return -EPERM;
839
840 if (copy_from_user(&inout, arg, sizeof(inout)))
841 return -XFS_ERROR(EFAULT);
842
843 /* input parameter is passed in resblks field of structure */
844 in = inout.resblks;
845 error = xfs_reserve_blocks(mp, &in, &inout);
846 if (error)
847 return -error;
848
849 if (copy_to_user(arg, &inout, sizeof(inout)))
850 return -XFS_ERROR(EFAULT);
851 return 0;
852 }
853
854 case XFS_IOC_GET_RESBLKS: {
855 xfs_fsop_resblks_t out;
856
857 if (!capable(CAP_SYS_ADMIN))
858 return -EPERM;
859
860 error = xfs_reserve_blocks(mp, NULL, &out);
861 if (error)
862 return -error;
863
864 if (copy_to_user(arg, &out, sizeof(out)))
865 return -XFS_ERROR(EFAULT);
866
867 return 0;
868 }
869
870 case XFS_IOC_FSGROWFSDATA: {
871 xfs_growfs_data_t in;
872
873 if (!capable(CAP_SYS_ADMIN))
874 return -EPERM;
875
876 if (copy_from_user(&in, arg, sizeof(in)))
877 return -XFS_ERROR(EFAULT);
878
879 error = xfs_growfs_data(mp, &in);
880 return -error;
881 }
882
883 case XFS_IOC_FSGROWFSLOG: {
884 xfs_growfs_log_t in;
885
886 if (!capable(CAP_SYS_ADMIN))
887 return -EPERM;
888
889 if (copy_from_user(&in, arg, sizeof(in)))
890 return -XFS_ERROR(EFAULT);
891
892 error = xfs_growfs_log(mp, &in);
893 return -error;
894 }
895
896 case XFS_IOC_FSGROWFSRT: {
897 xfs_growfs_rt_t in;
898
899 if (!capable(CAP_SYS_ADMIN))
900 return -EPERM;
901
902 if (copy_from_user(&in, arg, sizeof(in)))
903 return -XFS_ERROR(EFAULT);
904
905 error = xfs_growfs_rt(mp, &in);
906 return -error;
907 }
908
909 case XFS_IOC_FREEZE:
910 if (!capable(CAP_SYS_ADMIN))
911 return -EPERM;
912
913 if (inode->i_sb->s_frozen == SB_UNFROZEN)
914 freeze_bdev(inode->i_sb->s_bdev);
915 return 0;
916
917 case XFS_IOC_THAW:
918 if (!capable(CAP_SYS_ADMIN))
919 return -EPERM;
920 if (inode->i_sb->s_frozen != SB_UNFROZEN)
921 thaw_bdev(inode->i_sb->s_bdev, inode->i_sb);
922 return 0;
923
924 case XFS_IOC_GOINGDOWN: {
925 __uint32_t in;
926
927 if (!capable(CAP_SYS_ADMIN))
928 return -EPERM;
929
930 if (get_user(in, (__uint32_t __user *)arg))
931 return -XFS_ERROR(EFAULT);
932
933 error = xfs_fs_goingdown(mp, in);
934 return -error;
935 }
936
937 case XFS_IOC_ERROR_INJECTION: {
938 xfs_error_injection_t in;
939
940 if (!capable(CAP_SYS_ADMIN))
941 return -EPERM;
942
943 if (copy_from_user(&in, arg, sizeof(in)))
944 return -XFS_ERROR(EFAULT);
945
946 error = xfs_errortag_add(in.errtag, mp);
947 return -error;
948 }
949
950 case XFS_IOC_ERROR_CLEARALL:
951 if (!capable(CAP_SYS_ADMIN))
952 return -EPERM;
953
954 error = xfs_errortag_clearall(mp, 1);
955 return -error;
956
957 default:
958 return -ENOTTY;
959 }
960}
961
962STATIC int 654STATIC int
963xfs_ioc_space( 655xfs_ioc_space(
964 struct xfs_inode *ip, 656 struct xfs_inode *ip,
@@ -1398,12 +1090,10 @@ xfs_ioctl(
1398 return xfs_ioc_fsgetxattr(ip, 0, arg); 1090 return xfs_ioc_fsgetxattr(ip, 0, arg);
1399 case XFS_IOC_FSGETXATTRA: 1091 case XFS_IOC_FSGETXATTRA:
1400 return xfs_ioc_fsgetxattr(ip, 1, arg); 1092 return xfs_ioc_fsgetxattr(ip, 1, arg);
1401 case XFS_IOC_FSSETXATTR:
1402 return xfs_ioc_fssetxattr(ip, filp, arg);
1403 case XFS_IOC_GETXFLAGS: 1093 case XFS_IOC_GETXFLAGS:
1404 return xfs_ioc_getxflags(ip, arg);
1405 case XFS_IOC_SETXFLAGS: 1094 case XFS_IOC_SETXFLAGS:
1406 return xfs_ioc_setxflags(ip, filp, arg); 1095 case XFS_IOC_FSSETXATTR:
1096 return xfs_ioc_xattr(ip, filp, cmd, arg);
1407 1097
1408 case XFS_IOC_FSSETDM: { 1098 case XFS_IOC_FSSETDM: {
1409 struct fsdmidata dmi; 1099 struct fsdmidata dmi;
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-05 20:33:57 -0500