forked from luck/tmp_suning_uos_patched
20f4ebf2bf
The free block modification code has a 32bit interface, limiting the size the filesystem can be grown even on 64 bit machines. On 32 bit machines, there are other 32bit variables in transaction structures and interfaces that need to be expanded to allow this to work. SGI-PV: 959978 SGI-Modid: xfs-linux-melb:xfs-kern:27894a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com>
636 lines
24 KiB
C
636 lines
24 KiB
C
/*
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* Copyright (c) 2000-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef __XFS_MOUNT_H__
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#define __XFS_MOUNT_H__
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typedef struct xfs_trans_reservations {
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uint tr_write; /* extent alloc trans */
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uint tr_itruncate; /* truncate trans */
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uint tr_rename; /* rename trans */
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uint tr_link; /* link trans */
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uint tr_remove; /* unlink trans */
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uint tr_symlink; /* symlink trans */
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uint tr_create; /* create trans */
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uint tr_mkdir; /* mkdir trans */
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uint tr_ifree; /* inode free trans */
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uint tr_ichange; /* inode update trans */
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uint tr_growdata; /* fs data section grow trans */
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uint tr_swrite; /* sync write inode trans */
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uint tr_addafork; /* cvt inode to attributed trans */
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uint tr_writeid; /* write setuid/setgid file */
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uint tr_attrinval; /* attr fork buffer invalidation */
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uint tr_attrset; /* set/create an attribute */
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uint tr_attrrm; /* remove an attribute */
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uint tr_clearagi; /* clear bad agi unlinked ino bucket */
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uint tr_growrtalloc; /* grow realtime allocations */
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uint tr_growrtzero; /* grow realtime zeroing */
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uint tr_growrtfree; /* grow realtime freeing */
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} xfs_trans_reservations_t;
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#ifndef __KERNEL__
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/*
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* Moved here from xfs_ag.h to avoid reordering header files
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*/
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#define XFS_DADDR_TO_AGNO(mp,d) \
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((xfs_agnumber_t)(XFS_BB_TO_FSBT(mp, d) / (mp)->m_sb.sb_agblocks))
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#define XFS_DADDR_TO_AGBNO(mp,d) \
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((xfs_agblock_t)(XFS_BB_TO_FSBT(mp, d) % (mp)->m_sb.sb_agblocks))
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#else
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struct cred;
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struct log;
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struct bhv_vfs;
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struct bhv_vnode;
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struct xfs_mount_args;
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struct xfs_ihash;
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struct xfs_chash;
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struct xfs_inode;
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struct xfs_perag;
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struct xfs_iocore;
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struct xfs_bmbt_irec;
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struct xfs_bmap_free;
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struct xfs_extdelta;
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struct xfs_swapext;
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extern struct bhv_vfsops xfs_vfsops;
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extern struct bhv_vnodeops xfs_vnodeops;
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#define AIL_LOCK_T lock_t
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#define AIL_LOCKINIT(x,y) spinlock_init(x,y)
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#define AIL_LOCK_DESTROY(x) spinlock_destroy(x)
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#define AIL_LOCK(mp,s) s=mutex_spinlock(&(mp)->m_ail_lock)
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#define AIL_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_ail_lock, s)
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/*
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* Prototypes and functions for the Data Migration subsystem.
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*/
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typedef int (*xfs_send_data_t)(int, struct bhv_vnode *,
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xfs_off_t, size_t, int, bhv_vrwlock_t *);
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typedef int (*xfs_send_mmap_t)(struct vm_area_struct *, uint);
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typedef int (*xfs_send_destroy_t)(struct bhv_vnode *, dm_right_t);
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typedef int (*xfs_send_namesp_t)(dm_eventtype_t, struct bhv_vfs *,
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struct bhv_vnode *,
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dm_right_t, struct bhv_vnode *, dm_right_t,
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char *, char *, mode_t, int, int);
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typedef void (*xfs_send_unmount_t)(struct bhv_vfs *, struct bhv_vnode *,
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dm_right_t, mode_t, int, int);
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typedef struct xfs_dmops {
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xfs_send_data_t xfs_send_data;
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xfs_send_mmap_t xfs_send_mmap;
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xfs_send_destroy_t xfs_send_destroy;
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xfs_send_namesp_t xfs_send_namesp;
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xfs_send_unmount_t xfs_send_unmount;
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} xfs_dmops_t;
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#define XFS_SEND_DATA(mp, ev,vp,off,len,fl,lock) \
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(*(mp)->m_dm_ops.xfs_send_data)(ev,vp,off,len,fl,lock)
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#define XFS_SEND_MMAP(mp, vma,fl) \
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(*(mp)->m_dm_ops.xfs_send_mmap)(vma,fl)
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#define XFS_SEND_DESTROY(mp, vp,right) \
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(*(mp)->m_dm_ops.xfs_send_destroy)(vp,right)
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#define XFS_SEND_NAMESP(mp, ev,b1,r1,b2,r2,n1,n2,mode,rval,fl) \
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(*(mp)->m_dm_ops.xfs_send_namesp)(ev,NULL,b1,r1,b2,r2,n1,n2,mode,rval,fl)
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#define XFS_SEND_PREUNMOUNT(mp, vfs,b1,r1,b2,r2,n1,n2,mode,rval,fl) \
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(*(mp)->m_dm_ops.xfs_send_namesp)(DM_EVENT_PREUNMOUNT,vfs,b1,r1,b2,r2,n1,n2,mode,rval,fl)
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#define XFS_SEND_UNMOUNT(mp, vfsp,vp,right,mode,rval,fl) \
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(*(mp)->m_dm_ops.xfs_send_unmount)(vfsp,vp,right,mode,rval,fl)
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/*
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* Prototypes and functions for the Quota Management subsystem.
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*/
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struct xfs_dquot;
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struct xfs_dqtrxops;
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struct xfs_quotainfo;
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typedef int (*xfs_qminit_t)(struct xfs_mount *, uint *, uint *);
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typedef int (*xfs_qmmount_t)(struct xfs_mount *, uint, uint, int);
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typedef int (*xfs_qmunmount_t)(struct xfs_mount *);
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typedef void (*xfs_qmdone_t)(struct xfs_mount *);
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typedef void (*xfs_dqrele_t)(struct xfs_dquot *);
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typedef int (*xfs_dqattach_t)(struct xfs_inode *, uint);
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typedef void (*xfs_dqdetach_t)(struct xfs_inode *);
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typedef int (*xfs_dqpurgeall_t)(struct xfs_mount *, uint);
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typedef int (*xfs_dqvopalloc_t)(struct xfs_mount *,
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struct xfs_inode *, uid_t, gid_t, prid_t, uint,
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struct xfs_dquot **, struct xfs_dquot **);
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typedef void (*xfs_dqvopcreate_t)(struct xfs_trans *, struct xfs_inode *,
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struct xfs_dquot *, struct xfs_dquot *);
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typedef int (*xfs_dqvoprename_t)(struct xfs_inode **);
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typedef struct xfs_dquot * (*xfs_dqvopchown_t)(
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struct xfs_trans *, struct xfs_inode *,
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struct xfs_dquot **, struct xfs_dquot *);
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typedef int (*xfs_dqvopchownresv_t)(struct xfs_trans *, struct xfs_inode *,
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struct xfs_dquot *, struct xfs_dquot *, uint);
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typedef struct xfs_qmops {
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xfs_qminit_t xfs_qminit;
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xfs_qmdone_t xfs_qmdone;
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xfs_qmmount_t xfs_qmmount;
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xfs_qmunmount_t xfs_qmunmount;
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xfs_dqrele_t xfs_dqrele;
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xfs_dqattach_t xfs_dqattach;
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xfs_dqdetach_t xfs_dqdetach;
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xfs_dqpurgeall_t xfs_dqpurgeall;
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xfs_dqvopalloc_t xfs_dqvopalloc;
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xfs_dqvopcreate_t xfs_dqvopcreate;
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xfs_dqvoprename_t xfs_dqvoprename;
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xfs_dqvopchown_t xfs_dqvopchown;
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xfs_dqvopchownresv_t xfs_dqvopchownresv;
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struct xfs_dqtrxops *xfs_dqtrxops;
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} xfs_qmops_t;
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#define XFS_QM_INIT(mp, mnt, fl) \
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(*(mp)->m_qm_ops.xfs_qminit)(mp, mnt, fl)
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#define XFS_QM_MOUNT(mp, mnt, fl, mfsi_flags) \
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(*(mp)->m_qm_ops.xfs_qmmount)(mp, mnt, fl, mfsi_flags)
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#define XFS_QM_UNMOUNT(mp) \
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(*(mp)->m_qm_ops.xfs_qmunmount)(mp)
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#define XFS_QM_DONE(mp) \
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(*(mp)->m_qm_ops.xfs_qmdone)(mp)
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#define XFS_QM_DQRELE(mp, dq) \
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(*(mp)->m_qm_ops.xfs_dqrele)(dq)
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#define XFS_QM_DQATTACH(mp, ip, fl) \
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(*(mp)->m_qm_ops.xfs_dqattach)(ip, fl)
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#define XFS_QM_DQDETACH(mp, ip) \
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(*(mp)->m_qm_ops.xfs_dqdetach)(ip)
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#define XFS_QM_DQPURGEALL(mp, fl) \
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(*(mp)->m_qm_ops.xfs_dqpurgeall)(mp, fl)
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#define XFS_QM_DQVOPALLOC(mp, ip, uid, gid, prid, fl, dq1, dq2) \
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(*(mp)->m_qm_ops.xfs_dqvopalloc)(mp, ip, uid, gid, prid, fl, dq1, dq2)
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#define XFS_QM_DQVOPCREATE(mp, tp, ip, dq1, dq2) \
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(*(mp)->m_qm_ops.xfs_dqvopcreate)(tp, ip, dq1, dq2)
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#define XFS_QM_DQVOPRENAME(mp, ip) \
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(*(mp)->m_qm_ops.xfs_dqvoprename)(ip)
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#define XFS_QM_DQVOPCHOWN(mp, tp, ip, dqp, dq) \
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(*(mp)->m_qm_ops.xfs_dqvopchown)(tp, ip, dqp, dq)
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#define XFS_QM_DQVOPCHOWNRESV(mp, tp, ip, dq1, dq2, fl) \
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(*(mp)->m_qm_ops.xfs_dqvopchownresv)(tp, ip, dq1, dq2, fl)
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/*
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* Prototypes and functions for I/O core modularization.
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*/
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typedef int (*xfs_ioinit_t)(struct bhv_vfs *,
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struct xfs_mount_args *, int);
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typedef int (*xfs_bmapi_t)(struct xfs_trans *, void *,
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xfs_fileoff_t, xfs_filblks_t, int,
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xfs_fsblock_t *, xfs_extlen_t,
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struct xfs_bmbt_irec *, int *,
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struct xfs_bmap_free *, struct xfs_extdelta *);
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typedef int (*xfs_bunmapi_t)(struct xfs_trans *,
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void *, xfs_fileoff_t,
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xfs_filblks_t, int, xfs_extnum_t,
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xfs_fsblock_t *, struct xfs_bmap_free *,
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struct xfs_extdelta *, int *);
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typedef int (*xfs_bmap_eof_t)(void *, xfs_fileoff_t, int, int *);
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typedef int (*xfs_iomap_write_direct_t)(
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void *, xfs_off_t, size_t, int,
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struct xfs_bmbt_irec *, int *, int);
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typedef int (*xfs_iomap_write_delay_t)(
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void *, xfs_off_t, size_t, int,
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struct xfs_bmbt_irec *, int *);
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typedef int (*xfs_iomap_write_allocate_t)(
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void *, xfs_off_t, size_t,
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struct xfs_bmbt_irec *, int *);
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typedef int (*xfs_iomap_write_unwritten_t)(
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void *, xfs_off_t, size_t);
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typedef uint (*xfs_lck_map_shared_t)(void *);
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typedef void (*xfs_lock_t)(void *, uint);
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typedef void (*xfs_lock_demote_t)(void *, uint);
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typedef int (*xfs_lock_nowait_t)(void *, uint);
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typedef void (*xfs_unlk_t)(void *, unsigned int);
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typedef xfs_fsize_t (*xfs_size_t)(void *);
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typedef xfs_fsize_t (*xfs_iodone_t)(struct bhv_vfs *);
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typedef int (*xfs_swap_extents_t)(void *, void *,
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struct xfs_swapext*);
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typedef struct xfs_ioops {
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xfs_ioinit_t xfs_ioinit;
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xfs_bmapi_t xfs_bmapi_func;
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xfs_bunmapi_t xfs_bunmapi_func;
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xfs_bmap_eof_t xfs_bmap_eof_func;
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xfs_iomap_write_direct_t xfs_iomap_write_direct;
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xfs_iomap_write_delay_t xfs_iomap_write_delay;
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xfs_iomap_write_allocate_t xfs_iomap_write_allocate;
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xfs_iomap_write_unwritten_t xfs_iomap_write_unwritten;
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xfs_lock_t xfs_ilock;
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xfs_lck_map_shared_t xfs_lck_map_shared;
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xfs_lock_demote_t xfs_ilock_demote;
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xfs_lock_nowait_t xfs_ilock_nowait;
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xfs_unlk_t xfs_unlock;
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xfs_size_t xfs_size_func;
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xfs_iodone_t xfs_iodone;
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xfs_swap_extents_t xfs_swap_extents_func;
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} xfs_ioops_t;
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#define XFS_IOINIT(vfsp, args, flags) \
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(*(mp)->m_io_ops.xfs_ioinit)(vfsp, args, flags)
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#define XFS_BMAPI(mp, trans,io,bno,len,f,first,tot,mval,nmap,flist,delta) \
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(*(mp)->m_io_ops.xfs_bmapi_func) \
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(trans,(io)->io_obj,bno,len,f,first,tot,mval,nmap,flist,delta)
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#define XFS_BUNMAPI(mp, trans,io,bno,len,f,nexts,first,flist,delta,done) \
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(*(mp)->m_io_ops.xfs_bunmapi_func) \
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(trans,(io)->io_obj,bno,len,f,nexts,first,flist,delta,done)
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#define XFS_BMAP_EOF(mp, io, endoff, whichfork, eof) \
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(*(mp)->m_io_ops.xfs_bmap_eof_func) \
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((io)->io_obj, endoff, whichfork, eof)
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#define XFS_IOMAP_WRITE_DIRECT(mp, io, offset, count, flags, mval, nmap, found)\
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(*(mp)->m_io_ops.xfs_iomap_write_direct) \
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((io)->io_obj, offset, count, flags, mval, nmap, found)
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#define XFS_IOMAP_WRITE_DELAY(mp, io, offset, count, flags, mval, nmap) \
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(*(mp)->m_io_ops.xfs_iomap_write_delay) \
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((io)->io_obj, offset, count, flags, mval, nmap)
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#define XFS_IOMAP_WRITE_ALLOCATE(mp, io, offset, count, mval, nmap) \
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(*(mp)->m_io_ops.xfs_iomap_write_allocate) \
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((io)->io_obj, offset, count, mval, nmap)
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#define XFS_IOMAP_WRITE_UNWRITTEN(mp, io, offset, count) \
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(*(mp)->m_io_ops.xfs_iomap_write_unwritten) \
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((io)->io_obj, offset, count)
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#define XFS_LCK_MAP_SHARED(mp, io) \
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(*(mp)->m_io_ops.xfs_lck_map_shared)((io)->io_obj)
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#define XFS_ILOCK(mp, io, mode) \
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(*(mp)->m_io_ops.xfs_ilock)((io)->io_obj, mode)
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#define XFS_ILOCK_NOWAIT(mp, io, mode) \
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(*(mp)->m_io_ops.xfs_ilock_nowait)((io)->io_obj, mode)
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#define XFS_IUNLOCK(mp, io, mode) \
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(*(mp)->m_io_ops.xfs_unlock)((io)->io_obj, mode)
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#define XFS_ILOCK_DEMOTE(mp, io, mode) \
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(*(mp)->m_io_ops.xfs_ilock_demote)((io)->io_obj, mode)
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#define XFS_SIZE(mp, io) \
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(*(mp)->m_io_ops.xfs_size_func)((io)->io_obj)
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#define XFS_IODONE(vfsp) \
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(*(mp)->m_io_ops.xfs_iodone)(vfsp)
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#define XFS_SWAP_EXTENTS(mp, io, tio, sxp) \
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(*(mp)->m_io_ops.xfs_swap_extents_func) \
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((io)->io_obj, (tio)->io_obj, sxp)
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#ifdef HAVE_PERCPU_SB
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/*
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* Valid per-cpu incore superblock counters. Note that if you add new counters,
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* you may need to define new counter disabled bit field descriptors as there
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* are more possible fields in the superblock that can fit in a bitfield on a
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* 32 bit platform. The XFS_SBS_* values for the current current counters just
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* fit.
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*/
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typedef struct xfs_icsb_cnts {
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uint64_t icsb_fdblocks;
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uint64_t icsb_ifree;
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uint64_t icsb_icount;
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unsigned long icsb_flags;
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} xfs_icsb_cnts_t;
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#define XFS_ICSB_FLAG_LOCK (1 << 0) /* counter lock bit */
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#define XFS_ICSB_SB_LOCKED (1 << 0) /* sb already locked */
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#define XFS_ICSB_LAZY_COUNT (1 << 1) /* accuracy not needed */
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extern int xfs_icsb_init_counters(struct xfs_mount *);
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extern void xfs_icsb_sync_counters_lazy(struct xfs_mount *);
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#else
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#define xfs_icsb_init_counters(mp) (0)
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#define xfs_icsb_sync_counters_lazy(mp) do { } while (0)
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#endif
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typedef struct xfs_mount {
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bhv_desc_t m_bhv; /* vfs xfs behavior */
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xfs_tid_t m_tid; /* next unused tid for fs */
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AIL_LOCK_T m_ail_lock; /* fs AIL mutex */
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xfs_ail_entry_t m_ail; /* fs active log item list */
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uint m_ail_gen; /* fs AIL generation count */
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xfs_sb_t m_sb; /* copy of fs superblock */
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lock_t m_sb_lock; /* sb counter mutex */
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struct xfs_buf *m_sb_bp; /* buffer for superblock */
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char *m_fsname; /* filesystem name */
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int m_fsname_len; /* strlen of fs name */
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char *m_rtname; /* realtime device name */
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char *m_logname; /* external log device name */
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int m_bsize; /* fs logical block size */
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xfs_agnumber_t m_agfrotor; /* last ag where space found */
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xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */
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lock_t m_agirotor_lock;/* .. and lock protecting it */
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xfs_agnumber_t m_maxagi; /* highest inode alloc group */
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size_t m_ihsize; /* size of next field */
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struct xfs_ihash *m_ihash; /* fs private inode hash table*/
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struct xfs_inode *m_inodes; /* active inode list */
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struct list_head m_del_inodes; /* inodes to reclaim */
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mutex_t m_ilock; /* inode list mutex */
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uint m_ireclaims; /* count of calls to reclaim*/
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uint m_readio_log; /* min read size log bytes */
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uint m_readio_blocks; /* min read size blocks */
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uint m_writeio_log; /* min write size log bytes */
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uint m_writeio_blocks; /* min write size blocks */
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struct log *m_log; /* log specific stuff */
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int m_logbufs; /* number of log buffers */
|
|
int m_logbsize; /* size of each log buffer */
|
|
uint m_rsumlevels; /* rt summary levels */
|
|
uint m_rsumsize; /* size of rt summary, bytes */
|
|
struct xfs_inode *m_rbmip; /* pointer to bitmap inode */
|
|
struct xfs_inode *m_rsumip; /* pointer to summary inode */
|
|
struct xfs_inode *m_rootip; /* pointer to root directory */
|
|
struct xfs_quotainfo *m_quotainfo; /* disk quota information */
|
|
xfs_buftarg_t *m_ddev_targp; /* saves taking the address */
|
|
xfs_buftarg_t *m_logdev_targp;/* ptr to log device */
|
|
xfs_buftarg_t *m_rtdev_targp; /* ptr to rt device */
|
|
__uint8_t m_dircook_elog; /* log d-cookie entry bits */
|
|
__uint8_t m_blkbit_log; /* blocklog + NBBY */
|
|
__uint8_t m_blkbb_log; /* blocklog - BBSHIFT */
|
|
__uint8_t m_agno_log; /* log #ag's */
|
|
__uint8_t m_agino_log; /* #bits for agino in inum */
|
|
__uint8_t m_nreadaheads; /* #readahead buffers */
|
|
__uint16_t m_inode_cluster_size;/* min inode buf size */
|
|
uint m_blockmask; /* sb_blocksize-1 */
|
|
uint m_blockwsize; /* sb_blocksize in words */
|
|
uint m_blockwmask; /* blockwsize-1 */
|
|
uint m_alloc_mxr[2]; /* XFS_ALLOC_BLOCK_MAXRECS */
|
|
uint m_alloc_mnr[2]; /* XFS_ALLOC_BLOCK_MINRECS */
|
|
uint m_bmap_dmxr[2]; /* XFS_BMAP_BLOCK_DMAXRECS */
|
|
uint m_bmap_dmnr[2]; /* XFS_BMAP_BLOCK_DMINRECS */
|
|
uint m_inobt_mxr[2]; /* XFS_INOBT_BLOCK_MAXRECS */
|
|
uint m_inobt_mnr[2]; /* XFS_INOBT_BLOCK_MINRECS */
|
|
uint m_ag_maxlevels; /* XFS_AG_MAXLEVELS */
|
|
uint m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */
|
|
uint m_in_maxlevels; /* XFS_IN_MAXLEVELS */
|
|
struct xfs_perag *m_perag; /* per-ag accounting info */
|
|
struct rw_semaphore m_peraglock; /* lock for m_perag (pointer) */
|
|
sema_t m_growlock; /* growfs mutex */
|
|
int m_fixedfsid[2]; /* unchanged for life of FS */
|
|
uint m_dmevmask; /* DMI events for this FS */
|
|
__uint64_t m_flags; /* global mount flags */
|
|
uint m_attroffset; /* inode attribute offset */
|
|
uint m_dir_node_ents; /* #entries in a dir danode */
|
|
uint m_attr_node_ents; /* #entries in attr danode */
|
|
int m_ialloc_inos; /* inodes in inode allocation */
|
|
int m_ialloc_blks; /* blocks in inode allocation */
|
|
int m_litino; /* size of inode union area */
|
|
int m_inoalign_mask;/* mask sb_inoalignmt if used */
|
|
uint m_qflags; /* quota status flags */
|
|
xfs_trans_reservations_t m_reservations;/* precomputed res values */
|
|
__uint64_t m_maxicount; /* maximum inode count */
|
|
__uint64_t m_maxioffset; /* maximum inode offset */
|
|
__uint64_t m_resblks; /* total reserved blocks */
|
|
__uint64_t m_resblks_avail;/* available reserved blocks */
|
|
#if XFS_BIG_INUMS
|
|
xfs_ino_t m_inoadd; /* add value for ino64_offset */
|
|
#endif
|
|
int m_dalign; /* stripe unit */
|
|
int m_swidth; /* stripe width */
|
|
int m_sinoalign; /* stripe unit inode alignment */
|
|
int m_attr_magicpct;/* 37% of the blocksize */
|
|
int m_dir_magicpct; /* 37% of the dir blocksize */
|
|
__uint8_t m_mk_sharedro; /* mark shared ro on unmount */
|
|
__uint8_t m_inode_quiesce;/* call quiesce on new inodes.
|
|
field governed by m_ilock */
|
|
__uint8_t m_sectbb_log; /* sectlog - BBSHIFT */
|
|
int m_dirblksize; /* directory block sz--bytes */
|
|
int m_dirblkfsbs; /* directory block sz--fsbs */
|
|
xfs_dablk_t m_dirdatablk; /* blockno of dir data v2 */
|
|
xfs_dablk_t m_dirleafblk; /* blockno of dir non-data v2 */
|
|
xfs_dablk_t m_dirfreeblk; /* blockno of dirfreeindex v2 */
|
|
uint m_chsize; /* size of next field */
|
|
struct xfs_chash *m_chash; /* fs private inode per-cluster
|
|
* hash table */
|
|
struct xfs_dmops m_dm_ops; /* vector of DMI ops */
|
|
struct xfs_qmops m_qm_ops; /* vector of XQM ops */
|
|
struct xfs_ioops m_io_ops; /* vector of I/O ops */
|
|
atomic_t m_active_trans; /* number trans frozen */
|
|
#ifdef HAVE_PERCPU_SB
|
|
xfs_icsb_cnts_t *m_sb_cnts; /* per-cpu superblock counters */
|
|
unsigned long m_icsb_counters; /* disabled per-cpu counters */
|
|
struct notifier_block m_icsb_notifier; /* hotplug cpu notifier */
|
|
struct mutex m_icsb_mutex; /* balancer sync lock */
|
|
#endif
|
|
} xfs_mount_t;
|
|
|
|
/*
|
|
* Flags for m_flags.
|
|
*/
|
|
#define XFS_MOUNT_WSYNC (1ULL << 0) /* for nfs - all metadata ops
|
|
must be synchronous except
|
|
for space allocations */
|
|
#define XFS_MOUNT_INO64 (1ULL << 1)
|
|
/* (1ULL << 2) -- currently unused */
|
|
/* (1ULL << 3) -- currently unused */
|
|
#define XFS_MOUNT_FS_SHUTDOWN (1ULL << 4) /* atomic stop of all filesystem
|
|
operations, typically for
|
|
disk errors in metadata */
|
|
#define XFS_MOUNT_RETERR (1ULL << 6) /* return alignment errors to
|
|
user */
|
|
#define XFS_MOUNT_NOALIGN (1ULL << 7) /* turn off stripe alignment
|
|
allocations */
|
|
#define XFS_MOUNT_ATTR2 (1ULL << 8) /* allow use of attr2 format */
|
|
/* (1ULL << 9) -- currently unused */
|
|
#define XFS_MOUNT_NORECOVERY (1ULL << 10) /* no recovery - dirty fs */
|
|
#define XFS_MOUNT_SHARED (1ULL << 11) /* shared mount */
|
|
#define XFS_MOUNT_DFLT_IOSIZE (1ULL << 12) /* set default i/o size */
|
|
#define XFS_MOUNT_OSYNCISOSYNC (1ULL << 13) /* o_sync is REALLY o_sync */
|
|
/* osyncisdsync is now default*/
|
|
#define XFS_MOUNT_32BITINODES (1ULL << 14) /* do not create inodes above
|
|
* 32 bits in size */
|
|
/* (1ULL << 15) -- currently unused */
|
|
#define XFS_MOUNT_NOUUID (1ULL << 16) /* ignore uuid during mount */
|
|
#define XFS_MOUNT_BARRIER (1ULL << 17)
|
|
#define XFS_MOUNT_IDELETE (1ULL << 18) /* delete empty inode clusters*/
|
|
#define XFS_MOUNT_SWALLOC (1ULL << 19) /* turn on stripe width
|
|
* allocation */
|
|
#define XFS_MOUNT_IHASHSIZE (1ULL << 20) /* inode hash table size */
|
|
#define XFS_MOUNT_DIRSYNC (1ULL << 21) /* synchronous directory ops */
|
|
#define XFS_MOUNT_COMPAT_IOSIZE (1ULL << 22) /* don't report large preferred
|
|
* I/O size in stat() */
|
|
#define XFS_MOUNT_NO_PERCPU_SB (1ULL << 23) /* don't use per-cpu superblock
|
|
counters */
|
|
|
|
|
|
/*
|
|
* Default minimum read and write sizes.
|
|
*/
|
|
#define XFS_READIO_LOG_LARGE 16
|
|
#define XFS_WRITEIO_LOG_LARGE 16
|
|
|
|
/*
|
|
* Max and min values for mount-option defined I/O
|
|
* preallocation sizes.
|
|
*/
|
|
#define XFS_MAX_IO_LOG 30 /* 1G */
|
|
#define XFS_MIN_IO_LOG PAGE_SHIFT
|
|
|
|
/*
|
|
* Synchronous read and write sizes. This should be
|
|
* better for NFSv2 wsync filesystems.
|
|
*/
|
|
#define XFS_WSYNC_READIO_LOG 15 /* 32K */
|
|
#define XFS_WSYNC_WRITEIO_LOG 14 /* 16K */
|
|
|
|
/*
|
|
* Allow large block sizes to be reported to userspace programs if the
|
|
* "largeio" mount option is used.
|
|
*
|
|
* If compatibility mode is specified, simply return the basic unit of caching
|
|
* so that we don't get inefficient read/modify/write I/O from user apps.
|
|
* Otherwise....
|
|
*
|
|
* If the underlying volume is a stripe, then return the stripe width in bytes
|
|
* as the recommended I/O size. It is not a stripe and we've set a default
|
|
* buffered I/O size, return that, otherwise return the compat default.
|
|
*/
|
|
static inline unsigned long
|
|
xfs_preferred_iosize(xfs_mount_t *mp)
|
|
{
|
|
if (mp->m_flags & XFS_MOUNT_COMPAT_IOSIZE)
|
|
return PAGE_CACHE_SIZE;
|
|
return (mp->m_swidth ?
|
|
(mp->m_swidth << mp->m_sb.sb_blocklog) :
|
|
((mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) ?
|
|
(1 << (int)MAX(mp->m_readio_log, mp->m_writeio_log)) :
|
|
PAGE_CACHE_SIZE));
|
|
}
|
|
|
|
#define XFS_MAXIOFFSET(mp) ((mp)->m_maxioffset)
|
|
|
|
#define XFS_FORCED_SHUTDOWN(mp) ((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN)
|
|
#define xfs_force_shutdown(m,f) \
|
|
bhv_vfs_force_shutdown((XFS_MTOVFS(m)), f, __FILE__, __LINE__)
|
|
|
|
/*
|
|
* Flags for xfs_mountfs
|
|
*/
|
|
#define XFS_MFSI_SECOND 0x01 /* Secondary mount -- skip stuff */
|
|
#define XFS_MFSI_CLIENT 0x02 /* Is a client -- skip lots of stuff */
|
|
/* XFS_MFSI_RRINODES */
|
|
#define XFS_MFSI_NOUNLINK 0x08 /* Skip unlinked inode processing in */
|
|
/* log recovery */
|
|
#define XFS_MFSI_NO_QUOTACHECK 0x10 /* Skip quotacheck processing */
|
|
/* XFS_MFSI_CONVERT_SUNIT */
|
|
#define XFS_MFSI_QUIET 0x40 /* Be silent if mount errors found */
|
|
|
|
/*
|
|
* Macros for getting from mount to vfs and back.
|
|
*/
|
|
#define XFS_MTOVFS(mp) xfs_mtovfs(mp)
|
|
static inline struct bhv_vfs *xfs_mtovfs(xfs_mount_t *mp)
|
|
{
|
|
return bhvtovfs(&mp->m_bhv);
|
|
}
|
|
|
|
#define XFS_BHVTOM(bdp) xfs_bhvtom(bdp)
|
|
static inline xfs_mount_t *xfs_bhvtom(bhv_desc_t *bdp)
|
|
{
|
|
return (xfs_mount_t *)BHV_PDATA(bdp);
|
|
}
|
|
|
|
#define XFS_VFSTOM(vfs) xfs_vfstom(vfs)
|
|
static inline xfs_mount_t *xfs_vfstom(bhv_vfs_t *vfs)
|
|
{
|
|
return XFS_BHVTOM(bhv_lookup_range(VFS_BHVHEAD(vfs),
|
|
VFS_POSITION_XFS, VFS_POSITION_XFS));
|
|
}
|
|
|
|
#define XFS_DADDR_TO_AGNO(mp,d) xfs_daddr_to_agno(mp,d)
|
|
static inline xfs_agnumber_t
|
|
xfs_daddr_to_agno(struct xfs_mount *mp, xfs_daddr_t d)
|
|
{
|
|
xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d);
|
|
do_div(ld, mp->m_sb.sb_agblocks);
|
|
return (xfs_agnumber_t) ld;
|
|
}
|
|
|
|
#define XFS_DADDR_TO_AGBNO(mp,d) xfs_daddr_to_agbno(mp,d)
|
|
static inline xfs_agblock_t
|
|
xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d)
|
|
{
|
|
xfs_daddr_t ld = XFS_BB_TO_FSBT(mp, d);
|
|
return (xfs_agblock_t) do_div(ld, mp->m_sb.sb_agblocks);
|
|
}
|
|
|
|
/*
|
|
* Per-cpu superblock locking functions
|
|
*/
|
|
#ifdef HAVE_PERCPU_SB
|
|
STATIC_INLINE void
|
|
xfs_icsb_lock(xfs_mount_t *mp)
|
|
{
|
|
mutex_lock(&mp->m_icsb_mutex);
|
|
}
|
|
|
|
STATIC_INLINE void
|
|
xfs_icsb_unlock(xfs_mount_t *mp)
|
|
{
|
|
mutex_unlock(&mp->m_icsb_mutex);
|
|
}
|
|
#else
|
|
#define xfs_icsb_lock(mp)
|
|
#define xfs_icsb_unlock(mp)
|
|
#endif
|
|
|
|
/*
|
|
* This structure is for use by the xfs_mod_incore_sb_batch() routine.
|
|
* xfs_growfs can specify a few fields which are more than int limit
|
|
*/
|
|
typedef struct xfs_mod_sb {
|
|
xfs_sb_field_t msb_field; /* Field to modify, see below */
|
|
int64_t msb_delta; /* Change to make to specified field */
|
|
} xfs_mod_sb_t;
|
|
|
|
#define XFS_MOUNT_ILOCK(mp) mutex_lock(&((mp)->m_ilock))
|
|
#define XFS_MOUNT_IUNLOCK(mp) mutex_unlock(&((mp)->m_ilock))
|
|
#define XFS_SB_LOCK(mp) mutex_spinlock(&(mp)->m_sb_lock)
|
|
#define XFS_SB_UNLOCK(mp,s) mutex_spinunlock(&(mp)->m_sb_lock,(s))
|
|
|
|
extern xfs_mount_t *xfs_mount_init(void);
|
|
extern void xfs_mod_sb(xfs_trans_t *, __int64_t);
|
|
extern void xfs_mount_free(xfs_mount_t *mp, int remove_bhv);
|
|
extern int xfs_mountfs(struct bhv_vfs *, xfs_mount_t *mp, int);
|
|
extern void xfs_mountfs_check_barriers(xfs_mount_t *mp);
|
|
|
|
extern int xfs_unmountfs(xfs_mount_t *, struct cred *);
|
|
extern void xfs_unmountfs_close(xfs_mount_t *, struct cred *);
|
|
extern int xfs_unmountfs_writesb(xfs_mount_t *);
|
|
extern int xfs_unmount_flush(xfs_mount_t *, int);
|
|
extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int);
|
|
extern int xfs_mod_incore_sb_unlocked(xfs_mount_t *, xfs_sb_field_t,
|
|
int64_t, int);
|
|
extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *,
|
|
uint, int);
|
|
extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int);
|
|
extern int xfs_readsb(xfs_mount_t *, int);
|
|
extern void xfs_freesb(xfs_mount_t *);
|
|
extern void xfs_do_force_shutdown(bhv_desc_t *, int, char *, int);
|
|
extern int xfs_syncsub(xfs_mount_t *, int, int *);
|
|
extern int xfs_sync_inodes(xfs_mount_t *, int, int *);
|
|
extern xfs_agnumber_t xfs_initialize_perag(struct bhv_vfs *, xfs_mount_t *,
|
|
xfs_agnumber_t);
|
|
extern void xfs_xlatesb(void *, struct xfs_sb *, int, __int64_t);
|
|
|
|
extern struct xfs_dmops xfs_dmcore_stub;
|
|
extern struct xfs_qmops xfs_qmcore_stub;
|
|
extern struct xfs_ioops xfs_iocore_xfs;
|
|
|
|
extern int xfs_init(void);
|
|
extern void xfs_cleanup(void);
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* __XFS_MOUNT_H__ */
|