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authorIngo Molnar <mingo@kernel.org>2016-11-22 12:37:38 +0100
committerIngo Molnar <mingo@kernel.org>2016-11-22 12:37:38 +0100
commit02cb689b2c102178c83e763e4f34b3efe7f969e2 (patch)
treecba7eb3f16487cef5dc4a2690686b1e2eb42af0c /lib
parent194a6b5b9cb6b91a5f7d86984165a3bc55188599 (diff)
parent3b404a519815b9820f73f1ecf404e5546c9270ba (diff)
downloadlinux-02cb689b2c102178c83e763e4f34b3efe7f969e2.tar.bz2
Merge branch 'linus' into locking/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/Kconfig.debug3
-rw-r--r--lib/iov_iter.c4
-rw-r--r--lib/stackdepot.c2
3 files changed, 8 insertions, 1 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index b01e547d4d04..a6c8db1d62f6 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1085,6 +1085,9 @@ config PROVE_LOCKING
For more details, see Documentation/locking/lockdep-design.txt.
+config PROVE_LOCKING_SMALL
+ bool
+
config LOCKDEP
bool
depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index f0c7f1481bae..f2bd21b93dfc 100644
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -683,10 +683,11 @@ static void pipe_advance(struct iov_iter *i, size_t size)
struct pipe_inode_info *pipe = i->pipe;
struct pipe_buffer *buf;
int idx = i->idx;
- size_t off = i->iov_offset;
+ size_t off = i->iov_offset, orig_sz;
if (unlikely(i->count < size))
size = i->count;
+ orig_sz = size;
if (size) {
if (off) /* make it relative to the beginning of buffer */
@@ -713,6 +714,7 @@ static void pipe_advance(struct iov_iter *i, size_t size)
pipe->nrbufs--;
}
}
+ i->count -= orig_sz;
}
void iov_iter_advance(struct iov_iter *i, size_t size)
diff --git a/lib/stackdepot.c b/lib/stackdepot.c
index 4d830e299989..f87d138e9672 100644
--- a/lib/stackdepot.c
+++ b/lib/stackdepot.c
@@ -192,6 +192,7 @@ void depot_fetch_stack(depot_stack_handle_t handle, struct stack_trace *trace)
trace->entries = stack->entries;
trace->skip = 0;
}
+EXPORT_SYMBOL_GPL(depot_fetch_stack);
/**
* depot_save_stack - save stack in a stack depot.
@@ -283,3 +284,4 @@ exit:
fast_exit:
return retval;
}
+EXPORT_SYMBOL_GPL(depot_save_stack);