[11/14] bpf: Rename bpf_tree to bpf_progs_tree
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Message ID 20200208154209.1797988-12-jolsa@kernel.org
State Superseded
Delegated to: BPF Maintainers
Headers show
Series
  • bpf: Add trampoline and dispatcher to /proc/kallsyms
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Commit Message

Jiri Olsa Feb. 8, 2020, 3:42 p.m. UTC
Renaming bpf_tree to bpf_progs_tree and bpf_tree_ops
to bpf_progs_tree_ops to better capture the usage of
the tree, which is used for the bpf_prog objects only
for exception tables search.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 kernel/bpf/core.c | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

Patch
diff mbox series

diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 66b17bea286e..50af5dcf7ff9 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -580,13 +580,14 @@  bpf_get_prog_addr_start(struct latch_tree_node *n)
 	return aux->ksym.start;
 }
 
-static __always_inline bool bpf_tree_less(struct latch_tree_node *a,
-					  struct latch_tree_node *b)
+static __always_inline bool
+bpf_progs_tree_less(struct latch_tree_node *a,
+		    struct latch_tree_node *b)
 {
 	return bpf_get_prog_addr_start(a) < bpf_get_prog_addr_start(b);
 }
 
-static __always_inline int bpf_tree_comp(void *key, struct latch_tree_node *n)
+static __always_inline int bpf_progs_tree_comp(void *key, struct latch_tree_node *n)
 {
 	unsigned long val = (unsigned long)key;
 	const struct bpf_prog_aux *aux;
@@ -601,9 +602,9 @@  static __always_inline int bpf_tree_comp(void *key, struct latch_tree_node *n)
 	return 0;
 }
 
-static const struct latch_tree_ops bpf_tree_ops = {
-	.less	= bpf_tree_less,
-	.comp	= bpf_tree_comp,
+static const struct latch_tree_ops bpf_progs_tree_ops = {
+	.less	= bpf_progs_tree_less,
+	.comp	= bpf_progs_tree_comp,
 };
 
 static __always_inline unsigned long
@@ -646,7 +647,7 @@  static const struct latch_tree_ops bpf_kallsyms_tree_ops = {
 static DEFINE_SPINLOCK(bpf_lock);
 static LIST_HEAD(bpf_kallsyms);
 static struct latch_tree_root bpf_kallsyms_tree __cacheline_aligned;
-static struct latch_tree_root bpf_tree __cacheline_aligned;
+static struct latch_tree_root bpf_progs_tree __cacheline_aligned;
 
 static void __bpf_ksym_add(struct bpf_ksym *ksym)
 {
@@ -706,7 +707,8 @@  void bpf_prog_kallsyms_add(struct bpf_prog *fp)
 	bpf_get_prog_name(fp);
 
 	spin_lock_bh(&bpf_lock);
-	latch_tree_insert(&fp->aux->ksym_tnode, &bpf_tree, &bpf_tree_ops);
+	latch_tree_insert(&fp->aux->ksym_tnode, &bpf_progs_tree,
+			  &bpf_progs_tree_ops);
 	__bpf_ksym_add(&fp->aux->ksym);
 	spin_unlock_bh(&bpf_lock);
 }
@@ -717,7 +719,8 @@  void bpf_prog_kallsyms_del(struct bpf_prog *fp)
 		return;
 
 	spin_lock_bh(&bpf_lock);
-	latch_tree_erase(&fp->aux->ksym_tnode, &bpf_tree, &bpf_tree_ops);
+	latch_tree_erase(&fp->aux->ksym_tnode, &bpf_progs_tree,
+			 &bpf_progs_tree_ops);
 	__bpf_ksym_del(&fp->aux->ksym);
 	spin_unlock_bh(&bpf_lock);
 }
@@ -726,7 +729,8 @@  static struct bpf_prog *bpf_prog_kallsyms_find(unsigned long addr)
 {
 	struct latch_tree_node *n;
 
-	n = latch_tree_find((void *)addr, &bpf_tree, &bpf_tree_ops);
+	n = latch_tree_find((void *)addr, &bpf_progs_tree,
+			    &bpf_progs_tree_ops);
 	return n ?
 	       container_of(n, struct bpf_prog_aux, ksym_tnode)->prog :
 	       NULL;