X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=fs%2Fxfs%2Flinux-2.6%2Fxfs_vnode.c;h=bc7afe00733801c869840881051f966ea9b553bf;hb=c1da678b5b4d8ce7836ed1ded80109d1db37efe0;hp=61999649ecef5ce39feaac478dbd7debdc4b731d;hpb=e8c8b3a79d85c22d3665b97dde843dc4d8d7ae37;p=safe%2Fjmp%2Flinux-2.6 diff --git a/fs/xfs/linux-2.6/xfs_vnode.c b/fs/xfs/linux-2.6/xfs_vnode.c index 6199964..bc7afe0 100644 --- a/fs/xfs/linux-2.6/xfs_vnode.c +++ b/fs/xfs/linux-2.6/xfs_vnode.c @@ -1,40 +1,36 @@ /* - * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved. + * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. + * All Rights Reserved. * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as + * 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. + * 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. * - * Further, this software is distributed without any warranty that it is - * free of the rightful claim of any third person regarding infringement - * or the like. Any license provided herein, whether implied or - * otherwise, applies only to this software file. Patent licenses, if - * any, provided herein do not apply to combinations of this program with - * other software, or any other product whatsoever. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write the Free Software Foundation, Inc., 59 - * Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, - * Mountain View, CA 94043, or: - * - * http://www.sgi.com - * - * For further information regarding this notice, see: - * - * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ + * 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_vnodeops.h" +#include "xfs_bmap_btree.h" +#include "xfs_inode.h" +/* + * And this gunk is needed for xfs_mount.h" + */ +#include "xfs_log.h" +#include "xfs_trans.h" +#include "xfs_sb.h" +#include "xfs_dmapi.h" +#include "xfs_inum.h" +#include "xfs_ag.h" +#include "xfs_mount.h" -uint64_t vn_generation; /* vnode generation number */ -DEFINE_SPINLOCK(vnumber_lock); /* * Dedicated vnode inactive/reclaim sync semaphores. @@ -42,10 +38,9 @@ DEFINE_SPINLOCK(vnumber_lock); */ #define NVSYNC 37 #define vptosync(v) (&vsync[((unsigned long)v) % NVSYNC]) -STATIC wait_queue_head_t vsync[NVSYNC]; +static wait_queue_head_t vsync[NVSYNC]; - -void +void __init vn_init(void) { int i; @@ -56,144 +51,128 @@ vn_init(void) void vn_iowait( - struct vnode *vp) + xfs_inode_t *ip) { - wait_queue_head_t *wq = vptosync(vp); + wait_queue_head_t *wq = vptosync(ip); - wait_event(*wq, (atomic_read(&vp->v_iocount) == 0)); + wait_event(*wq, (atomic_read(&ip->i_iocount) == 0)); } void vn_iowake( - struct vnode *vp) + xfs_inode_t *ip) { - if (atomic_dec_and_test(&vp->v_iocount)) - wake_up(vptosync(vp)); + if (atomic_dec_and_test(&ip->i_iocount)) + wake_up(vptosync(ip)); } -struct vnode * -vn_initialize( - struct inode *inode) +/* + * Volume managers supporting multiple paths can send back ENODEV when the + * final path disappears. In this case continuing to fill the page cache + * with dirty data which cannot be written out is evil, so prevent that. + */ +void +vn_ioerror( + xfs_inode_t *ip, + int error, + char *f, + int l) { - struct vnode *vp = LINVFS_GET_VP(inode); - - XFS_STATS_INC(vn_active); - XFS_STATS_INC(vn_alloc); - - vp->v_flag = VMODIFIED; - spinlock_init(&vp->v_lock, "v_lock"); - - spin_lock(&vnumber_lock); - if (!++vn_generation) /* v_number shouldn't be zero */ - vn_generation++; - vp->v_number = vn_generation; - spin_unlock(&vnumber_lock); - - ASSERT(VN_CACHED(vp) == 0); - - /* Initialize the first behavior and the behavior chain head. */ - vn_bhv_head_init(VN_BHV_HEAD(vp), "vnode"); - - atomic_set(&vp->v_iocount, 0); - -#ifdef XFS_VNODE_TRACE - vp->v_trace = ktrace_alloc(VNODE_TRACE_SIZE, KM_SLEEP); -#endif /* XFS_VNODE_TRACE */ - - vn_trace_exit(vp, "vn_initialize", (inst_t *)__return_address); - return vp; + if (unlikely(error == -ENODEV)) + xfs_do_force_shutdown(ip->i_mount, SHUTDOWN_DEVICE_REQ, f, l); } /* - * Revalidate the Linux inode from the vattr. + * Revalidate the Linux inode from the XFS inode. * Note: i_size _not_ updated; we must hold the inode * semaphore when doing that - callers responsibility. */ -void -vn_revalidate_core( - struct vnode *vp, - vattr_t *vap) +int +vn_revalidate( + bhv_vnode_t *vp) { - struct inode *inode = LINVFS_GET_IP(vp); - - inode->i_mode = vap->va_mode; - inode->i_nlink = vap->va_nlink; - inode->i_uid = vap->va_uid; - inode->i_gid = vap->va_gid; - inode->i_blocks = vap->va_nblocks; - inode->i_mtime = vap->va_mtime; - inode->i_ctime = vap->va_ctime; - inode->i_atime = vap->va_atime; - inode->i_blksize = vap->va_blocksize; - if (vap->va_xflags & XFS_XFLAG_IMMUTABLE) + struct inode *inode = vn_to_inode(vp); + struct xfs_inode *ip = XFS_I(inode); + struct xfs_mount *mp = ip->i_mount; + unsigned long xflags; + + xfs_itrace_entry(ip); + + if (XFS_FORCED_SHUTDOWN(mp)) + return -EIO; + + xfs_ilock(ip, XFS_ILOCK_SHARED); + inode->i_mode = ip->i_d.di_mode; + inode->i_uid = ip->i_d.di_uid; + inode->i_gid = ip->i_d.di_gid; + inode->i_mtime.tv_sec = ip->i_d.di_mtime.t_sec; + inode->i_mtime.tv_nsec = ip->i_d.di_mtime.t_nsec; + inode->i_ctime.tv_sec = ip->i_d.di_ctime.t_sec; + inode->i_ctime.tv_nsec = ip->i_d.di_ctime.t_nsec; + + xflags = xfs_ip2xflags(ip); + if (xflags & XFS_XFLAG_IMMUTABLE) inode->i_flags |= S_IMMUTABLE; else inode->i_flags &= ~S_IMMUTABLE; - if (vap->va_xflags & XFS_XFLAG_APPEND) + if (xflags & XFS_XFLAG_APPEND) inode->i_flags |= S_APPEND; else inode->i_flags &= ~S_APPEND; - if (vap->va_xflags & XFS_XFLAG_SYNC) + if (xflags & XFS_XFLAG_SYNC) inode->i_flags |= S_SYNC; else inode->i_flags &= ~S_SYNC; - if (vap->va_xflags & XFS_XFLAG_NOATIME) + if (xflags & XFS_XFLAG_NOATIME) inode->i_flags |= S_NOATIME; else inode->i_flags &= ~S_NOATIME; -} + xfs_iunlock(ip, XFS_ILOCK_SHARED); -/* - * Revalidate the Linux inode from the vnode. - */ -int -vn_revalidate( - struct vnode *vp) -{ - vattr_t va; - int error; - - vn_trace_entry(vp, "vn_revalidate", (inst_t *)__return_address); - ASSERT(vp->v_fbhv != NULL); - - va.va_mask = XFS_AT_STAT|XFS_AT_XFLAGS; - VOP_GETATTR(vp, &va, 0, NULL, error); - if (!error) { - vn_revalidate_core(vp, &va); - VUNMODIFY(vp); - } - return -error; + xfs_iflags_clear(ip, XFS_IMODIFIED); + return 0; } /* * Add a reference to a referenced vnode. */ -struct vnode * +bhv_vnode_t * vn_hold( - struct vnode *vp) + bhv_vnode_t *vp) { struct inode *inode; XFS_STATS_INC(vn_hold); - VN_LOCK(vp); - inode = igrab(LINVFS_GET_IP(vp)); + inode = igrab(vn_to_inode(vp)); ASSERT(inode); - VN_UNLOCK(vp, 0); return vp; } -#ifdef XFS_VNODE_TRACE +#ifdef XFS_INODE_TRACE + +/* + * Reference count of Linux inode if present, -1 if the xfs_inode + * has no associated Linux inode. + */ +static inline int xfs_icount(struct xfs_inode *ip) +{ + bhv_vnode_t *vp = XFS_ITOV_NULL(ip); + + if (vp) + return vn_count(vp); + return -1; +} -#define KTRACE_ENTER(vp, vk, s, line, ra) \ - ktrace_enter( (vp)->v_trace, \ +#define KTRACE_ENTER(ip, vk, s, line, ra) \ + ktrace_enter( (ip)->i_trace, \ /* 0 */ (void *)(__psint_t)(vk), \ /* 1 */ (void *)(s), \ /* 2 */ (void *)(__psint_t) line, \ -/* 3 */ (void *)(__psint_t)(vn_count(vp)), \ +/* 3 */ (void *)(__psint_t)xfs_icount(ip), \ /* 4 */ (void *)(ra), \ -/* 5 */ (void *)(__psunsigned_t)(vp)->v_flag, \ +/* 5 */ NULL, \ /* 6 */ (void *)(__psint_t)current_cpu(), \ /* 7 */ (void *)(__psint_t)current_pid(), \ /* 8 */ (void *)__return_address, \ @@ -203,32 +182,32 @@ vn_hold( * Vnode tracing code. */ void -vn_trace_entry(vnode_t *vp, const char *func, inst_t *ra) +_xfs_itrace_entry(xfs_inode_t *ip, const char *func, inst_t *ra) { - KTRACE_ENTER(vp, VNODE_KTRACE_ENTRY, func, 0, ra); + KTRACE_ENTER(ip, INODE_KTRACE_ENTRY, func, 0, ra); } void -vn_trace_exit(vnode_t *vp, const char *func, inst_t *ra) +_xfs_itrace_exit(xfs_inode_t *ip, const char *func, inst_t *ra) { - KTRACE_ENTER(vp, VNODE_KTRACE_EXIT, func, 0, ra); + KTRACE_ENTER(ip, INODE_KTRACE_EXIT, func, 0, ra); } void -vn_trace_hold(vnode_t *vp, char *file, int line, inst_t *ra) +xfs_itrace_hold(xfs_inode_t *ip, char *file, int line, inst_t *ra) { - KTRACE_ENTER(vp, VNODE_KTRACE_HOLD, file, line, ra); + KTRACE_ENTER(ip, INODE_KTRACE_HOLD, file, line, ra); } void -vn_trace_ref(vnode_t *vp, char *file, int line, inst_t *ra) +_xfs_itrace_ref(xfs_inode_t *ip, char *file, int line, inst_t *ra) { - KTRACE_ENTER(vp, VNODE_KTRACE_REF, file, line, ra); + KTRACE_ENTER(ip, INODE_KTRACE_REF, file, line, ra); } void -vn_trace_rele(vnode_t *vp, char *file, int line, inst_t *ra) +xfs_itrace_rele(xfs_inode_t *ip, char *file, int line, inst_t *ra) { - KTRACE_ENTER(vp, VNODE_KTRACE_RELE, file, line, ra); + KTRACE_ENTER(ip, INODE_KTRACE_RELE, file, line, ra); } -#endif /* XFS_VNODE_TRACE */ +#endif /* XFS_INODE_TRACE */