Merge git://oss.sgi.com:8090/xfs/xfs-2.6

[linux-drm-fsl-dcu.git] / fs / xfs / linux-2.6 / xfs_super.c

diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index de05abbbe7fd5b4d220b3baee7230006631cdd33..1a4103ca593c9e285c3c9740686b793bcf541737 100644 (file)
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -43,8 +43,6 @@
 #include "xfs_itable.h"
 #include "xfs_rw.h"
 #include "xfs_acl.h"
-#include "xfs_cap.h"
-#include "xfs_mac.h"
 #include "xfs_attr.h"
 #include "xfs_buf_item.h"
 #include "xfs_utils.h"
@@ -56,11 +54,12 @@
 #include <linux/mempool.h>
 #include <linux/writeback.h>
 #include <linux/kthread.h>
+#include <linux/freezer.h>
 
-STATIC struct quotactl_ops xfs_quotactl_operations;
-STATIC struct super_operations xfs_super_operations;
-STATIC kmem_zone_t *xfs_vnode_zone;
-STATIC kmem_zone_t *xfs_ioend_zone;
+static struct quotactl_ops xfs_quotactl_operations;
+static struct super_operations xfs_super_operations;
+static kmem_zone_t *xfs_vnode_zone;
+static kmem_zone_t *xfs_ioend_zone;
 mempool_t *xfs_ioend_pool;
 
 STATIC struct xfs_mount_args *
@@ -120,7 +119,7 @@ xfs_max_file_offset(
        return (((__uint64_t)pagefactor) << bitshift) - 1;
 }
 
-STATIC __inline__ void
+STATIC_INLINE void
 xfs_set_inodeops(
        struct inode            *inode)
 {
@@ -146,7 +145,7 @@ xfs_set_inodeops(
        }
 }
 
-STATIC __inline__ void
+STATIC_INLINE void
 xfs_revalidate_inode(
        xfs_mount_t             *mp,
        bhv_vnode_t             *vp,
@@ -552,7 +551,6 @@ vfs_sync_worker(
                error = bhv_vfs_sync(vfsp, SYNC_FSDATA | SYNC_BDFLUSH | \
                                        SYNC_ATTR | SYNC_REFCACHE, NULL);
        vfsp->vfs_sync_seq++;
-       wmb();
        wake_up(&vfsp->vfs_wait_single_sync_task);
 }
 
@@ -658,9 +656,17 @@ xfs_fs_sync_super(
        int                     error;
        int                     flags;
 
-       if (unlikely(sb->s_frozen == SB_FREEZE_WRITE))
-               flags = SYNC_QUIESCE;
-       else
+       if (unlikely(sb->s_frozen == SB_FREEZE_WRITE)) {
+               /*
+                * First stage of freeze - no more 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 (i.e
+                * SYNC_QUIESCE) because it'll just get dirty again.
+                */
+               flags = SYNC_FSDATA | SYNC_DELWRI | SYNC_WAIT | SYNC_IOWAIT;
+       } else
                flags = SYNC_FSDATA | (wait ? SYNC_WAIT : 0);
 
        error = bhv_vfs_sync(vfsp, flags, NULL);
@@ -872,7 +878,7 @@ xfs_fs_get_sb(
                           mnt);
 }
 
-STATIC struct super_operations xfs_super_operations = {
+static struct super_operations xfs_super_operations = {
        .alloc_inode            = xfs_fs_alloc_inode,
        .destroy_inode          = xfs_fs_destroy_inode,
        .write_inode            = xfs_fs_write_inode,
@@ -886,7 +892,7 @@ STATIC struct super_operations xfs_super_operations = {
        .show_options           = xfs_fs_show_options,
 };
 
-STATIC struct quotactl_ops xfs_quotactl_operations = {
+static struct quotactl_ops xfs_quotactl_operations = {
        .quota_sync             = xfs_fs_quotasync,
        .get_xstate             = xfs_fs_getxstate,
        .set_xstate             = xfs_fs_setxstate,