| /* |
| * Copyright (c) 2000,2005 Silicon Graphics, Inc. |
| * 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_fs.h" |
| #include "xfs_types.h" |
| #include "xfs_bit.h" |
| #include "xfs_log.h" |
| #include "xfs_trans.h" |
| #include "xfs_sb.h" |
| #include "xfs_ag.h" |
| #include "xfs_mount.h" |
| #include "xfs_bmap_btree.h" |
| #include "xfs_alloc_btree.h" |
| #include "xfs_ialloc_btree.h" |
| #include "xfs_dinode.h" |
| #include "xfs_inode.h" |
| #include "xfs_btree.h" |
| #include "xfs_trans_priv.h" |
| #include "xfs_inode_item.h" |
| #include "xfs_trace.h" |
| |
| #ifdef XFS_TRANS_DEBUG |
| STATIC void |
| xfs_trans_inode_broot_debug( |
| xfs_inode_t *ip); |
| #else |
| #define xfs_trans_inode_broot_debug(ip) |
| #endif |
| |
| /* |
| * Add a locked inode to the transaction. |
| * |
| * The inode must be locked, and it cannot be associated with any transaction. |
| * If lock_flags is non-zero the inode will be unlocked on transaction commit. |
| */ |
| void |
| xfs_trans_ijoin( |
| struct xfs_trans *tp, |
| struct xfs_inode *ip, |
| uint lock_flags) |
| { |
| xfs_inode_log_item_t *iip; |
| |
| ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
| if (ip->i_itemp == NULL) |
| xfs_inode_item_init(ip, ip->i_mount); |
| iip = ip->i_itemp; |
| |
| ASSERT(iip->ili_lock_flags == 0); |
| iip->ili_lock_flags = lock_flags; |
| |
| /* |
| * Get a log_item_desc to point at the new item. |
| */ |
| xfs_trans_add_item(tp, &iip->ili_item); |
| |
| xfs_trans_inode_broot_debug(ip); |
| } |
| |
| /* |
| * Transactional inode timestamp update. Requires the inode to be locked and |
| * joined to the transaction supplied. Relies on the transaction subsystem to |
| * track dirty state and update/writeback the inode accordingly. |
| */ |
| void |
| xfs_trans_ichgtime( |
| struct xfs_trans *tp, |
| struct xfs_inode *ip, |
| int flags) |
| { |
| struct inode *inode = VFS_I(ip); |
| timespec_t tv; |
| |
| ASSERT(tp); |
| ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
| |
| tv = current_fs_time(inode->i_sb); |
| |
| if ((flags & XFS_ICHGTIME_MOD) && |
| !timespec_equal(&inode->i_mtime, &tv)) { |
| inode->i_mtime = tv; |
| ip->i_d.di_mtime.t_sec = tv.tv_sec; |
| ip->i_d.di_mtime.t_nsec = tv.tv_nsec; |
| } |
| if ((flags & XFS_ICHGTIME_CHG) && |
| !timespec_equal(&inode->i_ctime, &tv)) { |
| inode->i_ctime = tv; |
| ip->i_d.di_ctime.t_sec = tv.tv_sec; |
| ip->i_d.di_ctime.t_nsec = tv.tv_nsec; |
| } |
| } |
| |
| /* |
| * This is called to mark the fields indicated in fieldmask as needing |
| * to be logged when the transaction is committed. The inode must |
| * already be associated with the given transaction. |
| * |
| * The values for fieldmask are defined in xfs_inode_item.h. We always |
| * log all of the core inode if any of it has changed, and we always log |
| * all of the inline data/extents/b-tree root if any of them has changed. |
| */ |
| void |
| xfs_trans_log_inode( |
| xfs_trans_t *tp, |
| xfs_inode_t *ip, |
| uint flags) |
| { |
| ASSERT(ip->i_itemp != NULL); |
| ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
| |
| tp->t_flags |= XFS_TRANS_DIRTY; |
| ip->i_itemp->ili_item.li_desc->lid_flags |= XFS_LID_DIRTY; |
| |
| /* |
| * Always OR in the bits from the ili_last_fields field. |
| * This is to coordinate with the xfs_iflush() and xfs_iflush_done() |
| * routines in the eventual clearing of the ili_fields bits. |
| * See the big comment in xfs_iflush() for an explanation of |
| * this coordination mechanism. |
| */ |
| flags |= ip->i_itemp->ili_last_fields; |
| ip->i_itemp->ili_fields |= flags; |
| } |
| |
| #ifdef XFS_TRANS_DEBUG |
| /* |
| * Keep track of the state of the inode btree root to make sure we |
| * log it properly. |
| */ |
| STATIC void |
| xfs_trans_inode_broot_debug( |
| xfs_inode_t *ip) |
| { |
| xfs_inode_log_item_t *iip; |
| |
| ASSERT(ip->i_itemp != NULL); |
| iip = ip->i_itemp; |
| if (iip->ili_root_size != 0) { |
| ASSERT(iip->ili_orig_root != NULL); |
| kmem_free(iip->ili_orig_root); |
| iip->ili_root_size = 0; |
| iip->ili_orig_root = NULL; |
| } |
| if (ip->i_d.di_format == XFS_DINODE_FMT_BTREE) { |
| ASSERT((ip->i_df.if_broot != NULL) && |
| (ip->i_df.if_broot_bytes > 0)); |
| iip->ili_root_size = ip->i_df.if_broot_bytes; |
| iip->ili_orig_root = |
| (char*)kmem_alloc(iip->ili_root_size, KM_SLEEP); |
| memcpy(iip->ili_orig_root, (char*)(ip->i_df.if_broot), |
| iip->ili_root_size); |
| } |
| } |
| #endif |