goto reread;
}
+ mp->m_features |= xfs_sb_version_to_features(sbp);
xfs_reinit_percpu_counters(mp);
/* no need to be quiet anymore, so reset the buf ops */
}
}
- if (!xfs_sb_version_hasdalign(&mp->m_sb)) {
+ if (!xfs_has_dalign(mp)) {
xfs_warn(mp,
"cannot change alignment: superblock does not support data alignment");
return -EINVAL;
sbp->sb_width = mp->m_swidth;
mp->m_update_sb = true;
} else if ((mp->m_flags & XFS_MOUNT_NOALIGN) != XFS_MOUNT_NOALIGN &&
- xfs_sb_version_hasdalign(&mp->m_sb)) {
+ xfs_has_dalign(mp)) {
mp->m_dalign = sbp->sb_unit;
mp->m_swidth = sbp->sb_width;
}
xfs_set_low_space_thresholds(
struct xfs_mount *mp)
{
- int i;
+ uint64_t dblocks = mp->m_sb.sb_dblocks;
+ uint64_t rtexts = mp->m_sb.sb_rextents;
+ int i;
- for (i = 0; i < XFS_LOWSP_MAX; i++) {
- uint64_t space = mp->m_sb.sb_dblocks;
+ do_div(dblocks, 100);
+ do_div(rtexts, 100);
- do_div(space, 100);
- mp->m_low_space[i] = space * (i + 1);
+ for (i = 0; i < XFS_LOWSP_MAX; i++) {
+ mp->m_low_space[i] = dblocks * (i + 1);
+ mp->m_low_rtexts[i] = rtexts * (i + 1);
}
}
* superblock to be correct and we don't need to do anything here.
* Otherwise, recalculate the summary counters.
*/
- if ((!xfs_sb_version_haslazysbcount(&mp->m_sb) ||
+ if ((!xfs_has_lazysbcount(mp) ||
XFS_LAST_UNMOUNT_WAS_CLEAN(mp)) &&
!xfs_fs_has_sickness(mp, XFS_SICK_FS_COUNTERS))
return 0;
* Flush and reclaim dirty inodes in preparation for unmount. Inodes and
* internal inode structures can be sitting in the CIL and AIL at this point,
* so we need to unpin them, write them back and/or reclaim them before unmount
- * can proceed.
+ * can proceed. In other words, callers are required to have inactivated all
+ * inodes.
*
* An inode cluster that has been freed can have its buffer still pinned in
* memory because the transaction is still sitting in a iclog. The stale inodes
mp->m_flags |= XFS_MOUNT_UNMOUNTING;
xfs_ail_push_all_sync(mp->m_ail);
+ xfs_inodegc_stop(mp);
cancel_delayed_work_sync(&mp->m_reclaim_work);
xfs_reclaim_inodes(mp);
xfs_health_unmount(mp);
xfs_warn(mp, "correcting sb_features alignment problem");
sbp->sb_features2 |= sbp->sb_bad_features2;
mp->m_update_sb = true;
-
- /*
- * Re-check for ATTR2 in case it was found in bad_features2
- * slot.
- */
- if (xfs_sb_version_hasattr2(&mp->m_sb) &&
- !(mp->m_flags & XFS_MOUNT_NOATTR2))
- mp->m_flags |= XFS_MOUNT_ATTR2;
}
- if (xfs_sb_version_hasattr2(&mp->m_sb) &&
- (mp->m_flags & XFS_MOUNT_NOATTR2)) {
- xfs_sb_version_removeattr2(&mp->m_sb);
- mp->m_update_sb = true;
-
- /* update sb_versionnum for the clearing of the morebits */
- if (!sbp->sb_features2)
- mp->m_update_sb = true;
- }
/* always use v2 inodes by default now */
if (!(mp->m_sb.sb_versionnum & XFS_SB_VERSION_NLINKBIT)) {
mp->m_sb.sb_versionnum |= XFS_SB_VERSION_NLINKBIT;
+ mp->m_features |= XFS_FEAT_NLINK;
mp->m_update_sb = true;
}
* cluster size. Full inode chunk alignment must match the chunk size,
* but that is checked on sb read verification...
*/
- if (xfs_sb_version_hassparseinodes(&mp->m_sb) &&
+ if (xfs_has_sparseinodes(mp) &&
mp->m_sb.sb_spino_align !=
XFS_B_TO_FSBT(mp, igeo->inode_cluster_size_raw)) {
xfs_warn(mp,
goto out_free_perag;
}
+ error = xfs_inodegc_register_shrinker(mp);
+ if (error)
+ goto out_fail_wait;
+
/*
* Log's mount-time initialization. The first part of recovery can place
* some items on the AIL, to be handled when recovery is finished or
XFS_FSB_TO_BB(mp, sbp->sb_logblocks));
if (error) {
xfs_warn(mp, "log mount failed");
- goto out_fail_wait;
+ goto out_inodegc_shrinker;
}
/* Make sure the summary counts are ok. */
if (error)
goto out_log_dealloc;
+ /* Enable background inode inactivation workers. */
+ xfs_inodegc_start(mp);
+ xfs_blockgc_start(mp);
+
+ /*
+ * Now that we've recovered any pending superblock feature bit
+ * additions, we can finish setting up the attr2 behaviour for the
+ * mount. If no attr2 mount options were specified, the we use the
+ * behaviour specified by the superblock feature bit.
+ */
+ if (!(mp->m_flags & (XFS_MOUNT_ATTR2|XFS_MOUNT_NOATTR2)) &&
+ xfs_has_attr2(mp))
+ mp->m_flags |= XFS_MOUNT_ATTR2;
+
/*
* Get and sanity-check the root inode.
* Save the pointer to it in the mount structure.
/*
* Initialise the XFS quota management subsystem for this mount
*/
- if (XFS_IS_QUOTA_RUNNING(mp)) {
+ if (XFS_IS_QUOTA_ON(mp)) {
error = xfs_qm_newmount(mp, "amount, "aflags);
if (error)
goto out_rtunmount;
} else {
- ASSERT(!XFS_IS_QUOTA_ON(mp));
-
/*
* If a file system had quotas running earlier, but decided to
* mount without -o uquota/pquota/gquota options, revoke the
xfs_irele(rip);
/* Clean out dquots that might be in memory after quotacheck. */
xfs_qm_unmount(mp);
+
+ /*
+ * Inactivate all inodes that might still be in memory after a log
+ * intent recovery failure so that reclaim can free them. Metadata
+ * inodes and the root directory shouldn't need inactivation, but the
+ * mount failed for some reason, so pull down all the state and flee.
+ */
+ xfs_inodegc_flush(mp);
+
/*
* Flush all inode reclamation work and flush the log.
* We have to do this /after/ rtunmount and qm_unmount because those
xfs_unmount_flush_inodes(mp);
out_log_dealloc:
xfs_log_mount_cancel(mp);
+ out_inodegc_shrinker:
+ unregister_shrinker(&mp->m_inodegc_shrinker);
out_fail_wait:
if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp)
xfs_buftarg_drain(mp->m_logdev_targp);
uint64_t resblks;
int error;
+ /*
+ * Perform all on-disk metadata updates required to inactivate inodes
+ * that the VFS evicted earlier in the unmount process. Freeing inodes
+ * and discarding CoW fork preallocations can cause shape changes to
+ * the free inode and refcount btrees, respectively, so we must finish
+ * this before we discard the metadata space reservations. Metadata
+ * inodes and the root directory do not require inactivation.
+ */
+ xfs_inodegc_flush(mp);
+
xfs_blockgc_stop(mp);
xfs_fs_unreserve_ag_blocks(mp);
xfs_qm_unmount_quotas(mp);
#if defined(DEBUG)
xfs_errortag_clearall(mp);
#endif
+ unregister_shrinker(&mp->m_inodegc_shrinker);
xfs_free_perag(mp);
xfs_errortag_del(mp);
return true;
}
-/*
- * Deltas for the block count can vary from 1 to very large, but lock contention
- * only occurs on frequent small block count updates such as in the delayed
- * allocation path for buffered writes (page a time updates). Hence we set
- * a large batch count (1024) to minimise global counter updates except when
- * we get near to ENOSPC and we have to be very accurate with our updates.
- */
-#define XFS_FDBLOCKS_BATCH 1024
int
xfs_mod_fdblocks(
struct xfs_mount *mp,
xfs_force_summary_recalc(
struct xfs_mount *mp)
{
- if (!xfs_sb_version_haslazysbcount(&mp->m_sb))
+ if (!xfs_has_lazysbcount(mp))
return;
xfs_fs_mark_sick(mp, XFS_SICK_FS_COUNTERS);
}
+/*
+ * Enable a log incompat feature flag in the primary superblock. The caller
+ * cannot have any other transactions in progress.
+ */
+int
+xfs_add_incompat_log_feature(
+ struct xfs_mount *mp,
+ uint32_t feature)
+{
+ struct xfs_dsb *dsb;
+ int error;
+
+ ASSERT(hweight32(feature) == 1);
+ ASSERT(!(feature & XFS_SB_FEAT_INCOMPAT_LOG_UNKNOWN));
+
+ /*
+ * Force the log to disk and kick the background AIL thread to reduce
+ * the chances that the bwrite will stall waiting for the AIL to unpin
+ * the primary superblock buffer. This isn't a data integrity
+ * operation, so we don't need a synchronous push.
+ */
+ error = xfs_log_force(mp, XFS_LOG_SYNC);
+ if (error)
+ return error;
+ xfs_ail_push_all(mp->m_ail);
+
+ /*
+ * Lock the primary superblock buffer to serialize all callers that
+ * are trying to set feature bits.
+ */
+ xfs_buf_lock(mp->m_sb_bp);
+ xfs_buf_hold(mp->m_sb_bp);
+
+ if (XFS_FORCED_SHUTDOWN(mp)) {
+ error = -EIO;
+ goto rele;
+ }
+
+ if (xfs_sb_has_incompat_log_feature(&mp->m_sb, feature))
+ goto rele;
+
+ /*
+ * Write the primary superblock to disk immediately, because we need
+ * the log_incompat bit to be set in the primary super now to protect
+ * the log items that we're going to commit later.
+ */
+ dsb = mp->m_sb_bp->b_addr;
+ xfs_sb_to_disk(dsb, &mp->m_sb);
+ dsb->sb_features_log_incompat |= cpu_to_be32(feature);
+ error = xfs_bwrite(mp->m_sb_bp);
+ if (error)
+ goto shutdown;
+
+ /*
+ * Add the feature bits to the incore superblock before we unlock the
+ * buffer.
+ */
+ xfs_sb_add_incompat_log_features(&mp->m_sb, feature);
+ xfs_buf_relse(mp->m_sb_bp);
+
+ /* Log the superblock to disk. */
+ return xfs_sync_sb(mp, false);
+shutdown:
+ xfs_force_shutdown(mp, SHUTDOWN_META_IO_ERROR);
+rele:
+ xfs_buf_relse(mp->m_sb_bp);
+ return error;
+}
+
+/*
+ * Clear all the log incompat flags from the superblock.
+ *
+ * The caller cannot be in a transaction, must ensure that the log does not
+ * contain any log items protected by any log incompat bit, and must ensure
+ * that there are no other threads that depend on the state of the log incompat
+ * feature flags in the primary super.
+ *
+ * Returns true if the superblock is dirty.
+ */
+bool
+xfs_clear_incompat_log_features(
+ struct xfs_mount *mp)
+{
+ bool ret = false;
+
+ if (!xfs_sb_version_hascrc(&mp->m_sb) ||
+ !xfs_sb_has_incompat_log_feature(&mp->m_sb,
+ XFS_SB_FEAT_INCOMPAT_LOG_ALL) ||
+ XFS_FORCED_SHUTDOWN(mp))
+ return false;
+
+ /*
+ * Update the incore superblock. We synchronize on the primary super
+ * buffer lock to be consistent with the add function, though at least
+ * in theory this shouldn't be necessary.
+ */
+ xfs_buf_lock(mp->m_sb_bp);
+ xfs_buf_hold(mp->m_sb_bp);
+
+ if (xfs_sb_has_incompat_log_feature(&mp->m_sb,
+ XFS_SB_FEAT_INCOMPAT_LOG_ALL)) {
+ xfs_info(mp, "Clearing log incompat feature flags.");
+ xfs_sb_remove_incompat_log_features(&mp->m_sb);
+ ret = true;
+ }
+
+ xfs_buf_relse(mp->m_sb_bp);
+ return ret;
+}
+
/*
* Update the in-core delayed block counter.
*
projects / linux-2.6-microblaze.git / blobdiff