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authorDavid Howells2018-11-01 23:07:26 +0000
committerAl Viro2019-02-28 03:29:38 -0500
commit06a2ae56b5b88fa57cd56e0b99bd874135efdf58 (patch)
treed6fdcf9c7832198c307cce9242ef306ba20b5d8b
parente7582e16a170db4c85995c1c03d194ea1ea621fc (diff)
vfs: Add some logging to the core users of the fs_context log
Add some logging to the core users of the fs_context log so that information can be extracted from them as to the reason for failure. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/super.c4
-rw-r--r--kernel/cgroup/cgroup-v1.c2
2 files changed, 4 insertions, 2 deletions
diff --git a/fs/super.c b/fs/super.c
index 0ebb5c11fa56..583a0124bc39 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1467,8 +1467,10 @@ int vfs_get_tree(struct fs_context *fc)
struct super_block *sb;
int error;
- if (fc->fs_type->fs_flags & FS_REQUIRES_DEV && !fc->source)
+ if (fc->fs_type->fs_flags & FS_REQUIRES_DEV && !fc->source) {
+ errorf(fc, "Filesystem requires source device");
return -ENOENT;
+ }
if (fc->root)
return -EBUSY;
diff --git a/kernel/cgroup/cgroup-v1.c b/kernel/cgroup/cgroup-v1.c
index 571ef3447426..c126b34fd4ff 100644
--- a/kernel/cgroup/cgroup-v1.c
+++ b/kernel/cgroup/cgroup-v1.c
@@ -17,7 +17,7 @@
#include <trace/events/cgroup.h>
-#define cg_invalf(fc, fmt, ...) ({ pr_err(fmt, ## __VA_ARGS__); -EINVAL; })
+#define cg_invalf(fc, fmt, ...) invalf(fc, fmt, ## __VA_ARGS__)
/*
* pidlists linger the following amount before being destroyed. The goal