LU-16160 llite: SIGBUS is possible on a race with page reclaim

[fs/lustre-release.git] / lustre / llite / llite_internal.h

diff --git a/lustre/llite/llite_internal.h b/lustre/llite/llite_internal.h
index 45ab7b1..bdbfbb0 100644 (file)
--- a/lustre/llite/llite_internal.h
+++ b/lustre/llite/llite_internal.h
@@ -43,6 +43,7 @@
 #include <linux/compat.h>
 #include <linux/aio.h>
 #include <linux/parser.h>
+#include <linux/seqlock.h>
 #include <lustre_compat.h>
 #include <lustre_crypto.h>
 #include <range_lock.h>
@@ -279,6 +280,7 @@ struct ll_inode_info {
        struct mutex                    lli_xattrs_enq_lock;
        struct list_head                lli_xattrs; /* ll_xattr_entry->xe_list */
        struct list_head                lli_lccs; /* list of ll_cl_context */
+       seqlock_t                       lli_page_inv_lock;
 };
 
 #ifndef HAVE_USER_NAMESPACE_ARG
@@ -1822,4 +1824,6 @@ int ll_manage_foreign(struct inode *inode, struct lustre_md *lmd);
 bool ll_foreign_is_openable(struct dentry *dentry, unsigned int flags);
 bool ll_foreign_is_removable(struct dentry *dentry, bool unset);
 
+int ll_filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
+
 #endif /* LLITE_INTERNAL_H */