diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/Makefile.in | 1 | ||||
| -rw-r--r-- | include/linux/vfs_compat.h | 19 |
2 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/Makefile.in b/include/linux/Makefile.in index e0678c1ef..3a901c33e 100644 --- a/include/linux/Makefile.in +++ b/include/linux/Makefile.in @@ -43,6 +43,7 @@ am__aclocal_m4_deps = \ $(top_srcdir)/config/always-no-unused-but-set-variable.m4 \ $(top_srcdir)/config/kernel-bdev-block-device-operations.m4 \ $(top_srcdir)/config/kernel-bdev-logical-size.m4 \ + $(top_srcdir)/config/kernel-bdi.m4 \ $(top_srcdir)/config/kernel-bio-empty-barrier.m4 \ $(top_srcdir)/config/kernel-bio-end-io-t-args.m4 \ $(top_srcdir)/config/kernel-bio-failfast.m4 \ diff --git a/include/linux/vfs_compat.h b/include/linux/vfs_compat.h index 1d8a523cd..cbbf21e61 100644 --- a/include/linux/vfs_compat.h +++ b/include/linux/vfs_compat.h @@ -62,4 +62,23 @@ truncate_setsize(struct inode *ip, loff_t new) } #endif /* HAVE_TRUNCATE_SETSIZE */ +/* + * 2.6.32 API change, + * Added backing_device_info (bdi) per super block interfaces. When + * available a bdi must be configured when using a non-device backed + * filesystem for proper writeback. It's safe to leave this code + * dormant for kernels which only support pdflush and not bdi. + */ +#ifdef HAVE_BDI +#define bdi_get_sb(sb) (sb->s_bdi) +#define bdi_put_sb(sb, bdi) (sb->s_bdi = bdi) +#else +#define bdi_init(bdi) (0) +#define bdi_destroy(bdi) (0) +#define bdi_register(bdi, parent, fmt, args) (0) +#define bdi_unregister(bdi) (0) +#define bdi_get_sb(sb) (0) +#define bdi_put_sb(sb, bdi) (0) +#endif /* HAVE_BDI */ + #endif /* _ZFS_VFS_H */ |