diff options
Diffstat (limited to 'fs/xfs/xfs_trans_inode.c')
| -rw-r--r-- | fs/xfs/xfs_trans_inode.c | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c index daa7615497f9..07cea592dc01 100644 --- a/fs/xfs/xfs_trans_inode.c +++ b/fs/xfs/xfs_trans_inode.c @@ -28,6 +28,8 @@ #include "xfs_inode_item.h" #include "xfs_trace.h" +#include <linux/iversion.h> + /* * Add a locked inode to the transaction. * @@ -96,10 +98,24 @@ xfs_trans_log_inode( xfs_inode_t *ip, uint flags) { + struct inode *inode = VFS_I(ip); + ASSERT(ip->i_itemp != NULL); ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); /* + * Don't bother with i_lock for the I_DIRTY_TIME check here, as races + * don't matter - we either will need an extra transaction in 24 hours + * to log the timestamps, or will clear already cleared fields in the + * worst case. + */ + if (inode->i_state & (I_DIRTY_TIME | I_DIRTY_TIME_EXPIRED)) { + spin_lock(&inode->i_lock); + inode->i_state &= ~(I_DIRTY_TIME | I_DIRTY_TIME_EXPIRED); + spin_unlock(&inode->i_lock); + } + + /* * 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 @@ -110,15 +126,17 @@ xfs_trans_log_inode( /* * 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. + * counter if it is configured for this to occur. While we have the + * inode locked exclusively for metadata modification, we can usually + * avoid setting XFS_ILOG_CORE if no one has queried the value since + * the last time it was incremented. If we have XFS_ILOG_CORE already + * set however, then go ahead and bump the i_version counter + * unconditionally. */ 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; + if (inode_maybe_inc_iversion(VFS_I(ip), flags & XFS_ILOG_CORE)) + flags |= XFS_ILOG_CORE; } tp->t_flags |= XFS_TRANS_DIRTY; |