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authorDarrick J. Wong <darrick.wong@oracle.com>2016-08-03 12:04:45 +1000
committerDave Chinner <david@fromorbit.com>2016-08-03 12:04:45 +1000
commit5880f2d78ff17c6ee7c7f6d4071bfd13090c264c (patch)
tree6f90df23bcb16a03e1e1bb90bccf2336467c0cba /fs/xfs/xfs_super.c
parentabf09233817b5ea1241db0c187136d3b4738d218 (diff)
xfs: create rmap update intent log items
Create rmap update intent/done log items to record redo information in the log. Because we need to roll transactions between updating the bmbt mapping and updating the reverse mapping, we also have to track the status of the metadata updates that will be recorded in the post-roll transactions, just in case we crash before committing the final transaction. This mechanism enables log recovery to finish what was already started. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_super.c')
-rw-r--r--fs/xfs/xfs_super.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 449cadf149f9..654a0924b3d3 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -46,6 +46,7 @@
#include "xfs_quota.h"
#include "xfs_sysfs.h"
#include "xfs_ondisk.h"
+#include "xfs_rmap_item.h"
#include <linux/namei.h>
#include <linux/init.h>
@@ -1765,8 +1766,26 @@ xfs_init_zones(void)
if (!xfs_icreate_zone)
goto out_destroy_ili_zone;
+ xfs_rud_zone = kmem_zone_init((sizeof(struct xfs_rud_log_item) +
+ ((XFS_RUD_MAX_FAST_EXTENTS - 1) *
+ sizeof(struct xfs_map_extent))),
+ "xfs_rud_item");
+ if (!xfs_rud_zone)
+ goto out_destroy_icreate_zone;
+
+ xfs_rui_zone = kmem_zone_init((sizeof(struct xfs_rui_log_item) +
+ ((XFS_RUI_MAX_FAST_EXTENTS - 1) *
+ sizeof(struct xfs_map_extent))),
+ "xfs_rui_item");
+ if (!xfs_rui_zone)
+ goto out_destroy_rud_zone;
+
return 0;
+ out_destroy_rud_zone:
+ kmem_zone_destroy(xfs_rud_zone);
+ out_destroy_icreate_zone:
+ kmem_zone_destroy(xfs_icreate_zone);
out_destroy_ili_zone:
kmem_zone_destroy(xfs_ili_zone);
out_destroy_inode_zone:
@@ -1805,6 +1824,8 @@ xfs_destroy_zones(void)
* destroy caches.
*/
rcu_barrier();
+ kmem_zone_destroy(xfs_rui_zone);
+ kmem_zone_destroy(xfs_rud_zone);
kmem_zone_destroy(xfs_icreate_zone);
kmem_zone_destroy(xfs_ili_zone);
kmem_zone_destroy(xfs_inode_zone);