perf top: Add overwrite fall back

[linux-2.6-microblaze.git] / fs / Kconfig

diff --git a/fs/Kconfig b/fs/Kconfig
index 9774588..bc821a8 100644 (file)
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -58,6 +58,13 @@ config FS_DAX_PMD
        depends on ZONE_DEVICE
        depends on TRANSPARENT_HUGEPAGE
 
+# Selected by DAX drivers that do not expect filesystem DAX to support
+# get_user_pages() of DAX mappings. I.e. "limited" indicates no support
+# for fork() of processes with MAP_SHARED mappings or support for
+# direct-I/O to a DAX mapping.
+config FS_DAX_LIMITED
+       bool
+
 endif # BLOCK
 
 # Posix ACL utility routines