/*
* Go thru all the inodes in the file system, releasing their dquots.
*
* Note that the mount structure gets modified to indicate that quotas are off
* AFTER this, in the case of quotaoff.
*/
void
xfs_qm_dqrele_all_inodes(
struct xfs_mount *mp,
uint flags)
{
ASSERT(mp->m_quotainfo);
xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags, NULL);
}
STATIC int
xfs_sync_attr(
struct xfs_mount *mp,
int flags)
{
ASSERT((flags & ~SYNC_WAIT) == 0);
return xfs_inode_ag_iterator(mp, xfs_sync_inode_attr, flags);
}
/*
* Write out inode metadata (attributes) for the whole filesystem.
*/
int
xfs_sync_attr(
struct xfs_mount *mp,
int flags)
{
ASSERT((flags & ~SYNC_WAIT) == 0);
return xfs_inode_ag_iterator(mp, xfs_sync_inode_attr, flags,
XFS_ICI_NO_TAG, 0, NULL);
}
STATIC int
xfs_sync_data(
struct xfs_mount *mp,
int flags)
{
int error;
ASSERT((flags & ~(SYNC_TRYLOCK|SYNC_WAIT)) == 0);
error = xfs_inode_ag_iterator(mp, xfs_sync_inode_data, flags);
if (error)
return XFS_ERROR(error);
xfs_log_force(mp, (flags & SYNC_WAIT) ? XFS_LOG_SYNC : 0);
return 0;
}
/*
* Write out pagecache data for the whole filesystem.
*/
int
xfs_sync_data(
struct xfs_mount *mp,
int flags)
{
int error;
ASSERT((flags & ~(SYNC_TRYLOCK|SYNC_WAIT)) == 0);
error = xfs_inode_ag_iterator(mp, xfs_sync_inode_data, flags,
XFS_ICI_NO_TAG, 0, NULL);
if (error)
return XFS_ERROR(error);
xfs_log_force(mp, 0,
(flags & SYNC_WAIT) ?
XFS_LOG_FORCE | XFS_LOG_SYNC :
XFS_LOG_FORCE);
return 0;
}
/*
* First stage of freeze - no writers will make progress now we are here,
* so we flush delwri and delalloc buffers here, then wait for all I/O to
* complete. Data is frozen at that point. Metadata is not frozen,
* transactions can still occur here so don't bother flushing the buftarg
* because it'll just get dirty again.
*/
int
xfs_quiesce_data(
struct xfs_mount *mp)
{
int error, error2 = 0;
/* push non-blocking */
xfs_sync_data(mp, 0);
xfs_qm_sync(mp, SYNC_TRYLOCK);
/* push and block till complete */
xfs_sync_data(mp, SYNC_WAIT);
/*
* Log all pending size and timestamp updates. The vfs writeback
* code is supposed to do this, but due to its overagressive
* livelock detection it will skip inodes where appending writes
* were written out in the first non-blocking sync phase if their
* completion took long enough that it happened after taking the
* timestamp for the cut-off in the blocking phase.
*/
xfs_inode_ag_iterator(mp, xfs_log_dirty_inode, 0);
xfs_qm_sync(mp, SYNC_WAIT);
/* write superblock and hoover up shutdown errors */
error = xfs_sync_fsdata(mp);
/* make sure all delwri buffers are written out */
xfs_flush_buftarg(mp->m_ddev_targp, 1);
/* mark the log as covered if needed */
if (xfs_log_need_covered(mp))
error2 = xfs_fs_log_dummy(mp);
/* flush data-only devices */
if (mp->m_rtdev_targp)
XFS_bflush(mp->m_rtdev_targp);
return error ? error : error2;
}
