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authorDean Roehrich <roehrich@sgi.com>2005-06-21 14:07:45 +1000
committerNathan Scott <nathans@sgi.com>2005-06-21 14:07:45 +1000
commit6fac0cb46bc4c50d6cbc5998ad206435f39fb00f (patch)
tree1ef1029927e2e59440c0bcecb6afea567fed38a6 /fs/xfs
parentb74e2159c9849fb97659c6dc47ad706f702b22b9 (diff)
[XFS] coordinate mmap calls with xfs_dm_punch_hole
SGI-PV: 933551 SGI-Modid: xfs-linux:xfs-kern:190622a Signed-off-by: Dean Roehrich <roehrich@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/linux-2.6/xfs_file.c27
-rw-r--r--fs/xfs/xfs_dmapi.h4
2 files changed, 28 insertions, 3 deletions
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 24fa3b101b9..f1ce4323f56 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -57,7 +57,9 @@
#include <linux/smp_lock.h>
static struct vm_operations_struct linvfs_file_vm_ops;
-
+#ifdef CONFIG_XFS_DMAPI
+static struct vm_operations_struct linvfs_dmapi_file_vm_ops;
+#endif
STATIC inline ssize_t
__linvfs_read(
@@ -388,6 +390,14 @@ done:
return -error;
}
+#ifdef CONFIG_XFS_DMAPI
+STATIC void
+linvfs_mmap_close(
+ struct vm_area_struct *vma)
+{
+ xfs_dm_mm_put(vma);
+}
+#endif /* CONFIG_XFS_DMAPI */
STATIC int
linvfs_file_mmap(
@@ -399,16 +409,19 @@ linvfs_file_mmap(
vattr_t va = { .va_mask = XFS_AT_UPDATIME };
int error;
+ vma->vm_ops = &linvfs_file_vm_ops;
+
if (vp->v_vfsp->vfs_flag & VFS_DMI) {
xfs_mount_t *mp = XFS_VFSTOM(vp->v_vfsp);
error = -XFS_SEND_MMAP(mp, vma, 0);
if (error)
return error;
+#ifdef CONFIG_XFS_DMAPI
+ vma->vm_ops = &linvfs_dmapi_file_vm_ops;
+#endif
}
- vma->vm_ops = &linvfs_file_vm_ops;
-
VOP_SETATTR(vp, &va, XFS_AT_UPDATIME, NULL, error);
if (!error)
vn_revalidate(vp); /* update Linux inode flags */
@@ -609,7 +622,15 @@ struct file_operations linvfs_dir_operations = {
static struct vm_operations_struct linvfs_file_vm_ops = {
.nopage = filemap_nopage,
.populate = filemap_populate,
+};
+
+#ifdef CONFIG_XFS_DMAPI
+static struct vm_operations_struct linvfs_dmapi_file_vm_ops = {
+ .close = linvfs_mmap_close,
+ .nopage = filemap_nopage,
+ .populate = filemap_populate,
#ifdef HAVE_VMOP_MPROTECT
.mprotect = linvfs_mprotect,
#endif
};
+#endif /* CONFIG_XFS_DMAPI */
diff --git a/fs/xfs/xfs_dmapi.h b/fs/xfs/xfs_dmapi.h
index 55ae3e67d24..16cf9f7a478 100644
--- a/fs/xfs/xfs_dmapi.h
+++ b/fs/xfs/xfs_dmapi.h
@@ -209,4 +209,8 @@ void xfs_dm_exit(struct file_system_type *);
#define XFS_DM_EXIT(fstype)
#endif
+#define HAVE_XFS_DM_MM
+int xfs_dm_mm_get(struct vm_area_struct *vma);
+void xfs_dm_mm_put(struct vm_area_struct *vma);
+
#endif /* __XFS_DMAPI_H__ */