xfs: get rid of indirections in the quotaops implementation (fcafb71b) · Commits · e / devices / android_kernel_xiaomi_markw

fs/xfs/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -33,6 +33,7 @@ xfs-$(CONFIG_XFS_QUOTA) += $(addprefix quota/, \
		xfs_qm_syscalls.o \
		xfs_qm_bhv.o \
		xfs_qm.o)
		xfs-$(CONFIG_XFS_QUOTA) += linux-2.6/xfs_quotaops.o

		ifeq ($(CONFIG_XFS_QUOTA),y)
		xfs-$(CONFIG_PROC_FS) += quota/xfs_qm_stats.o

fs/xfs/linux-2.6/xfs_linux.h

+0 −11

Original line number	Diff line number	Diff line
		@@ -147,17 +147,6 @@
		#define SYNCHRONIZE() barrier()
		#define __return_address __builtin_return_address(0)

		/*
		* IRIX (BSD) quotactl makes use of separate commands for user/group,
		* whereas on Linux the syscall encodes this information into the cmd
		* field (see the QCMD macro in quota.h). These macros help keep the
		* code portable - they are not visible from the syscall interface.
		*/
		#define Q_XSETGQLIM XQM_CMD(8) /* set groups disk limits */
		#define Q_XGETGQUOTA XQM_CMD(9) /* get groups disk limits */
		#define Q_XSETPQLIM XQM_CMD(10) /* set projects disk limits */
		#define Q_XGETPQUOTA XQM_CMD(11) /* get projects disk limits */

		#define dfltprid 0
		#define MAXPATHLEN 1024

fs/xfs/linux-2.6/xfs_quotaops.c

0 → 100644

+157 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 2008, Christoph Hellwig
		* All Rights Reserved.
		*
		* This program is free software; you can redistribute it and/or
		* modify it under the terms of the GNU General Public License as
		* published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it would be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program; if not, write the Free Software Foundation,
		* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
		*/
		#include "xfs.h"
		#include "xfs_dmapi.h"
		#include "xfs_sb.h"
		#include "xfs_inum.h"
		#include "xfs_ag.h"
		#include "xfs_mount.h"
		#include "xfs_quota.h"
		#include "xfs_log.h"
		#include "xfs_trans.h"
		#include "xfs_bmap_btree.h"
		#include "xfs_inode.h"
		#include "quota/xfs_qm.h"
		#include <linux/quota.h>


		STATIC int
		xfs_quota_type(int type)
		{
		switch (type) {
		case USRQUOTA:
		return XFS_DQ_USER;
		case GRPQUOTA:
		return XFS_DQ_GROUP;
		default:
		return XFS_DQ_PROJ;
		}
		}

		STATIC int
		xfs_fs_quota_sync(
		struct super_block *sb,
		int type)
		{
		struct xfs_mount *mp = XFS_M(sb);

		if (!XFS_IS_QUOTA_RUNNING(mp))
		return -ENOSYS;
		return -xfs_sync_inodes(mp, SYNC_DELWRI);
		}

		STATIC int
		xfs_fs_get_xstate(
		struct super_block *sb,
		struct fs_quota_stat *fqs)
		{
		struct xfs_mount *mp = XFS_M(sb);

		if (!XFS_IS_QUOTA_RUNNING(mp))
		return -ENOSYS;
		return -xfs_qm_scall_getqstat(mp, fqs);
		}

		STATIC int
		xfs_fs_set_xstate(
		struct super_block *sb,
		unsigned int uflags,
		int op)
		{
		struct xfs_mount *mp = XFS_M(sb);
		unsigned int flags = 0;

		if (sb->s_flags & MS_RDONLY)
		return -EROFS;
		if (!XFS_IS_QUOTA_RUNNING(mp))
		return -ENOSYS;
		if (!capable(CAP_SYS_ADMIN))
		return -EPERM;

		if (uflags & XFS_QUOTA_UDQ_ACCT)
		flags \|= XFS_UQUOTA_ACCT;
		if (uflags & XFS_QUOTA_PDQ_ACCT)
		flags \|= XFS_PQUOTA_ACCT;
		if (uflags & XFS_QUOTA_GDQ_ACCT)
		flags \|= XFS_GQUOTA_ACCT;
		if (uflags & XFS_QUOTA_UDQ_ENFD)
		flags \|= XFS_UQUOTA_ENFD;
		if (uflags & (XFS_QUOTA_PDQ_ENFD\|XFS_QUOTA_GDQ_ENFD))
		flags \|= XFS_OQUOTA_ENFD;

		switch (op) {
		case Q_XQUOTAON:
		return -xfs_qm_scall_quotaon(mp, flags);
		case Q_XQUOTAOFF:
		if (!XFS_IS_QUOTA_ON(mp))
		return -EINVAL;
		return -xfs_qm_scall_quotaoff(mp, flags);
		case Q_XQUOTARM:
		if (XFS_IS_QUOTA_ON(mp))
		return -EINVAL;
		return -xfs_qm_scall_trunc_qfiles(mp, flags);
		}

		return -EINVAL;
		}

		STATIC int
		xfs_fs_get_xquota(
		struct super_block *sb,
		int type,
		qid_t id,
		struct fs_disk_quota *fdq)
		{
		struct xfs_mount *mp = XFS_M(sb);

		if (!XFS_IS_QUOTA_RUNNING(mp))
		return -ENOSYS;
		if (!XFS_IS_QUOTA_ON(mp))
		return -ESRCH;

		return -xfs_qm_scall_getquota(mp, id, xfs_quota_type(type), fdq);
		}

		STATIC int
		xfs_fs_set_xquota(
		struct super_block *sb,
		int type,
		qid_t id,
		struct fs_disk_quota *fdq)
		{
		struct xfs_mount *mp = XFS_M(sb);

		if (sb->s_flags & MS_RDONLY)
		return -EROFS;
		if (!XFS_IS_QUOTA_RUNNING(mp))
		return -ENOSYS;
		if (!XFS_IS_QUOTA_ON(mp))
		return -ESRCH;
		if (!capable(CAP_SYS_ADMIN))
		return -EPERM;

		return -xfs_qm_scall_setqlim(mp, id, xfs_quota_type(type), fdq);
		}

		struct quotactl_ops xfs_quotactl_operations = {
		.quota_sync = xfs_fs_quota_sync,
		.get_xstate = xfs_fs_get_xstate,
		.set_xstate = xfs_fs_set_xstate,
		.get_xquota = xfs_fs_get_xquota,
		.set_xquota = xfs_fs_set_xquota,
		};

fs/xfs/linux-2.6/xfs_super.c

+2 −60

Original line number	Diff line number	Diff line
		@@ -68,7 +68,6 @@
		#include <linux/freezer.h>
		#include <linux/parser.h>

		static struct quotactl_ops xfs_quotactl_operations;
		static struct super_operations xfs_super_operations;
		static kmem_zone_t *xfs_ioend_zone;
		mempool_t *xfs_ioend_pool;
		@@ -1333,57 +1332,6 @@ xfs_fs_show_options(
		return -xfs_showargs(XFS_M(mnt->mnt_sb), m);
		}

		STATIC int
		xfs_fs_quotasync(
		struct super_block *sb,
		int type)
		{
		return -XFS_QM_QUOTACTL(XFS_M(sb), Q_XQUOTASYNC, 0, NULL);
		}

		STATIC int
		xfs_fs_getxstate(
		struct super_block *sb,
		struct fs_quota_stat *fqs)
		{
		return -XFS_QM_QUOTACTL(XFS_M(sb), Q_XGETQSTAT, 0, (caddr_t)fqs);
		}

		STATIC int
		xfs_fs_setxstate(
		struct super_block *sb,
		unsigned int flags,
		int op)
		{
		return -XFS_QM_QUOTACTL(XFS_M(sb), op, 0, (caddr_t)&flags);
		}

		STATIC int
		xfs_fs_getxquota(
		struct super_block *sb,
		int type,
		qid_t id,
		struct fs_disk_quota *fdq)
		{
		return -XFS_QM_QUOTACTL(XFS_M(sb),
		(type == USRQUOTA) ? Q_XGETQUOTA :
		((type == GRPQUOTA) ? Q_XGETGQUOTA :
		Q_XGETPQUOTA), id, (caddr_t)fdq);
		}

		STATIC int
		xfs_fs_setxquota(
		struct super_block *sb,
		int type,
		qid_t id,
		struct fs_disk_quota *fdq)
		{
		return -XFS_QM_QUOTACTL(XFS_M(sb),
		(type == USRQUOTA) ? Q_XSETQLIM :
		((type == GRPQUOTA) ? Q_XSETGQLIM :
		Q_XSETPQLIM), id, (caddr_t)fdq);
		}

		/*
		* This function fills in xfs_mount_t fields based on mount args.
		* Note: the superblock _has_ now been read in.
		@@ -1466,7 +1414,9 @@ xfs_fs_fill_super(
		sb_min_blocksize(sb, BBSIZE);
		sb->s_xattr = xfs_xattr_handlers;
		sb->s_export_op = &xfs_export_operations;
		#ifdef CONFIG_XFS_QUOTA
		sb->s_qcop = &xfs_quotactl_operations;
		#endif
		sb->s_op = &xfs_super_operations;

		error = xfs_dmops_get(mp);
		@@ -1609,14 +1559,6 @@ static struct super_operations xfs_super_operations = {
		.show_options = xfs_fs_show_options,
		};

		static struct quotactl_ops xfs_quotactl_operations = {
		.quota_sync = xfs_fs_quotasync,
		.get_xstate = xfs_fs_getxstate,
		.set_xstate = xfs_fs_setxstate,
		.get_xquota = xfs_fs_getxquota,
		.set_xquota = xfs_fs_setxquota,
		};

		static struct file_system_type xfs_fs_type = {
		.owner = THIS_MODULE,
		.name = "xfs",

fs/xfs/linux-2.6/xfs_super.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -93,6 +93,7 @@ extern void xfs_blkdev_issue_flush(struct xfs_buftarg *);

		extern const struct export_operations xfs_export_operations;
		extern struct xattr_handler *xfs_xattr_handlers[];
		extern struct quotactl_ops xfs_quotactl_operations;

		#define XFS_M(sb) ((struct xfs_mount *)((sb)->s_fs_info))