LU-13004 ptlrpc: Allow BULK_BUF_KIOV to accept a kvec

[fs/lustre-release.git] / lustre / ptlrpc / sec_ctx.c

diff --git a/lustre/ptlrpc/sec_ctx.c b/lustre/ptlrpc/sec_ctx.c
index 5667495..1d22b90 100644 (file)
--- a/lustre/ptlrpc/sec_ctx.c
+++ b/lustre/ptlrpc/sec_ctx.c
@@ -37,15 +37,35 @@
 /* Debugging check only needed during development */
 #ifdef OBD_CTXT_DEBUG
 # define ASSERT_CTXT_MAGIC(magic) LASSERT((magic) == OBD_RUN_CTXT_MAGIC)
-# define ASSERT_NOT_KERNEL_CTXT(msg) LASSERTF(!segment_eq(get_fs(), get_ds()),\
+# define ASSERT_NOT_KERNEL_CTXT(msg) LASSERTF(!segment_eq(get_fs(), KERNEL_DS),\
                                              msg)
-# define ASSERT_KERNEL_CTXT(msg) LASSERTF(segment_eq(get_fs(), get_ds()), msg)
+# define ASSERT_KERNEL_CTXT(msg) LASSERTF(segment_eq(get_fs(), KERNEL_DS), msg)
 #else
 # define ASSERT_CTXT_MAGIC(magic) do {} while(0)
 # define ASSERT_NOT_KERNEL_CTXT(msg) do {} while(0)
 # define ASSERT_KERNEL_CTXT(msg) do {} while(0)
 #endif
 
+static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
+                                struct dentry *dentry)
+{
+       struct path path;
+       struct path old_pwd;
+
+       path.mnt = mnt;
+       path.dentry = dentry;
+       path_get(&path);
+       spin_lock(&fs->lock);
+       write_seqcount_begin(&fs->seq);
+       old_pwd = fs->pwd;
+       fs->pwd = path;
+       write_seqcount_end(&fs->seq);
+       spin_unlock(&fs->lock);
+
+       if (old_pwd.dentry)
+               path_put(&old_pwd);
+}
+
 /* push / pop to root of obd store */
 void push_ctxt(struct lvfs_run_ctxt *save, struct lvfs_run_ctxt *new_ctx)
 {