cregit-Linux how code gets into the kernel

Release 4.11 fs/xfs/xfs_trans_inode.c

Directory: fs/xfs
/*
 * 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_shared.h"
#include "xfs_format.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_mount.h"
#include "xfs_inode.h"
#include "xfs_trans.h"
#include "xfs_trans_priv.h"
#include "xfs_inode_item.h"
#include "xfs_trace.h"

/*
 * 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); }

Contributors

PersonTokensPropCommitsCommitProp
Christoph Hellwig81100.00%5100.00%
Total81100.00%5100.00%

/* * 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); struct timespec tv; ASSERT(tp); ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); tv = current_time(inode); if (flags & XFS_ICHGTIME_MOD) inode->i_mtime = tv; if (flags & XFS_ICHGTIME_CHG) inode->i_ctime = tv; }

Contributors

PersonTokensPropCommitsCommitProp
Dave Chinner7798.72%266.67%
Deepa Dinamani11.28%133.33%
Total78100.00%3100.00%

/* * 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)); /* * Record the specific change for fdatasync optimisation. This * allows fdatasync to skip log forces for inodes that are only * timestamp dirty. We do this before the change count so that * the core being logged in this case does not impact on fdatasync * behaviour. */ ip->i_itemp->ili_fsync_fields |= flags; /* * First time we log the inode in a transaction, bump the inode change * counter if it is configured for this to occur. We don't use * inode_inc_version() because there is no need for extra locking around * i_version as we already hold the inode locked exclusively for * metadata modification. */ if (!(ip->i_itemp->ili_item.li_desc->lid_flags & XFS_LID_DIRTY) && IS_I_VERSION(VFS_I(ip))) { VFS_I(ip)->i_version++; flags |= XFS_ILOG_CORE; } 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; }

Contributors

PersonTokensPropCommitsCommitProp
Christoph Hellwig7058.82%450.00%
Dave Chinner4941.18%450.00%
Total119100.00%8100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Christoph Hellwig15849.69%631.58%
Dave Chinner13642.77%947.37%
Russell Cattelan185.66%15.26%
Nathan Scott51.57%210.53%
Deepa Dinamani10.31%15.26%
Total318100.00%19100.00%
Directory: fs/xfs
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