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path: root/fs/xfs/xfs_super.c
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Diffstat (limited to 'fs/xfs/xfs_super.c')
-rw-r--r--fs/xfs/xfs_super.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 2d092f9577ca..ade4691e3f74 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -47,6 +47,9 @@
#include "xfs_sysfs.h"
#include "xfs_ondisk.h"
#include "xfs_rmap_item.h"
+#include "xfs_refcount_item.h"
+#include "xfs_bmap_item.h"
+#include "xfs_reflink.h"
#include <linux/namei.h>
#include <linux/init.h>
@@ -936,6 +939,7 @@ xfs_fs_destroy_inode(
struct inode *inode)
{
struct xfs_inode *ip = XFS_I(inode);
+ int error;
trace_xfs_destroy_inode(ip);
@@ -943,6 +947,14 @@ xfs_fs_destroy_inode(
XFS_STATS_INC(ip->i_mount, vn_rele);
XFS_STATS_INC(ip->i_mount, vn_remove);
+ if (xfs_is_reflink_inode(ip)) {
+ error = xfs_reflink_cancel_cow_range(ip, 0, NULLFILEOFF);
+ if (error && !XFS_FORCED_SHUTDOWN(ip->i_mount))
+ xfs_warn(ip->i_mount,
+"Error %d while evicting CoW blocks for inode %llu.",
+ error, ip->i_ino);
+ }
+
xfs_inactive(ip);
ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) || ip->i_delayed_blks == 0);
@@ -1006,6 +1018,16 @@ xfs_fs_drop_inode(
{
struct xfs_inode *ip = XFS_I(inode);
+ /*
+ * If this unlinked inode is in the middle of recovery, don't
+ * drop the inode just yet; log recovery will take care of
+ * that. See the comment for this inode flag.
+ */
+ if (ip->i_flags & XFS_IRECOVERY) {
+ ASSERT(ip->i_mount->m_log->l_flags & XLOG_RECOVERY_NEEDED);
+ return 0;
+ }
+
return generic_drop_inode(inode) || (ip->i_flags & XFS_IDONTCACHE);
}
@@ -1296,10 +1318,31 @@ xfs_fs_remount(
xfs_restore_resvblks(mp);
xfs_log_work_queue(mp);
xfs_queue_eofblocks(mp);
+
+ /* Recover any CoW blocks that never got remapped. */
+ error = xfs_reflink_recover_cow(mp);
+ if (error) {
+ xfs_err(mp,
+ "Error %d recovering leftover CoW allocations.", error);
+ xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
+ return error;
+ }
+
+ /* Create the per-AG metadata reservation pool .*/
+ error = xfs_fs_reserve_ag_blocks(mp);
+ if (error && error != -ENOSPC)
+ return error;
}
/* rw -> ro */
if (!(mp->m_flags & XFS_MOUNT_RDONLY) && (*flags & MS_RDONLY)) {
+ /* Free the per-AG metadata reservation pool. */
+ error = xfs_fs_unreserve_ag_blocks(mp);
+ if (error) {
+ xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
+ return error;
+ }
+
/*
* Before we sync the metadata, we need to free up the reserve
* block pool so that the used block count in the superblock on
@@ -1490,6 +1533,7 @@ xfs_fs_fill_super(
atomic_set(&mp->m_active_trans, 0);
INIT_DELAYED_WORK(&mp->m_reclaim_work, xfs_reclaim_worker);
INIT_DELAYED_WORK(&mp->m_eofblocks_work, xfs_eofblocks_worker);
+ INIT_DELAYED_WORK(&mp->m_cowblocks_work, xfs_cowblocks_worker);
mp->m_kobj.kobject.kset = xfs_kset;
mp->m_super = sb;
@@ -1572,6 +1616,9 @@ xfs_fs_fill_super(
"DAX unsupported by block device. Turning off DAX.");
mp->m_flags &= ~XFS_MOUNT_DAX;
}
+ if (xfs_sb_version_hasreflink(&mp->m_sb))
+ xfs_alert(mp,
+ "DAX and reflink have not been tested together!");
}
if (xfs_sb_version_hasrmapbt(&mp->m_sb)) {
@@ -1585,6 +1632,10 @@ xfs_fs_fill_super(
"EXPERIMENTAL reverse mapping btree feature enabled. Use at your own risk!");
}
+ if (xfs_sb_version_hasreflink(&mp->m_sb))
+ xfs_alert(mp,
+ "EXPERIMENTAL reflink feature enabled. Use at your own risk!");
+
error = xfs_mountfs(mp);
if (error)
goto out_filestream_unmount;
@@ -1788,8 +1839,38 @@ xfs_init_zones(void)
if (!xfs_rui_zone)
goto out_destroy_rud_zone;
+ xfs_cud_zone = kmem_zone_init(sizeof(struct xfs_cud_log_item),
+ "xfs_cud_item");
+ if (!xfs_cud_zone)
+ goto out_destroy_rui_zone;
+
+ xfs_cui_zone = kmem_zone_init(
+ xfs_cui_log_item_sizeof(XFS_CUI_MAX_FAST_EXTENTS),
+ "xfs_cui_item");
+ if (!xfs_cui_zone)
+ goto out_destroy_cud_zone;
+
+ xfs_bud_zone = kmem_zone_init(sizeof(struct xfs_bud_log_item),
+ "xfs_bud_item");
+ if (!xfs_bud_zone)
+ goto out_destroy_cui_zone;
+
+ xfs_bui_zone = kmem_zone_init(
+ xfs_bui_log_item_sizeof(XFS_BUI_MAX_FAST_EXTENTS),
+ "xfs_bui_item");
+ if (!xfs_bui_zone)
+ goto out_destroy_bud_zone;
+
return 0;
+ out_destroy_bud_zone:
+ kmem_zone_destroy(xfs_bud_zone);
+ out_destroy_cui_zone:
+ kmem_zone_destroy(xfs_cui_zone);
+ out_destroy_cud_zone:
+ kmem_zone_destroy(xfs_cud_zone);
+ out_destroy_rui_zone:
+ kmem_zone_destroy(xfs_rui_zone);
out_destroy_rud_zone:
kmem_zone_destroy(xfs_rud_zone);
out_destroy_icreate_zone:
@@ -1832,6 +1913,10 @@ xfs_destroy_zones(void)
* destroy caches.
*/
rcu_barrier();
+ kmem_zone_destroy(xfs_bui_zone);
+ kmem_zone_destroy(xfs_bud_zone);
+ kmem_zone_destroy(xfs_cui_zone);
+ kmem_zone_destroy(xfs_cud_zone);
kmem_zone_destroy(xfs_rui_zone);
kmem_zone_destroy(xfs_rud_zone);
kmem_zone_destroy(xfs_icreate_zone);
@@ -1885,6 +1970,8 @@ init_xfs_fs(void)
xfs_extent_free_init_defer_op();
xfs_rmap_update_init_defer_op();
+ xfs_refcount_update_init_defer_op();
+ xfs_bmap_update_init_defer_op();
xfs_dir_startup();