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Subject: [patch 138/158] mm/cma_debug.c: use DEFINE_DEBUGFS_ATTRIBUTE to define debugfs fops
Date: Sat, 30 Nov 2019 17:57:25 -0800
Message-ID: <> (raw)

From: zhong jiang <>
Subject: mm/cma_debug.c: use DEFINE_DEBUGFS_ATTRIBUTE to define debugfs fops

It is more clear to use DEFINE_DEBUGFS_ATTRIBUTE to define debugfs file
operation rather than DEFINE_SIMPLE_ATTRIBUTE.

Signed-off-by: zhong jiang <>
Reviewed-by: Andrew Morton <>
Cc: Yue Hu <>
Cc: Greg Kroah-Hartman <>
Signed-off-by: Andrew Morton <>

 mm/cma_debug.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

--- a/mm/cma_debug.c~mm-cma_debug-use-define_debugfs_attribute-to-define-debugfs-fops
+++ a/mm/cma_debug.c
@@ -29,7 +29,7 @@ static int cma_debugfs_get(void *data, u
 	return 0;
-DEFINE_SIMPLE_ATTRIBUTE(cma_debugfs_fops, cma_debugfs_get, NULL, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(cma_debugfs_fops, cma_debugfs_get, NULL, "%llu\n");
 static int cma_used_get(void *data, u64 *val)
@@ -44,7 +44,7 @@ static int cma_used_get(void *data, u64
 	return 0;
-DEFINE_SIMPLE_ATTRIBUTE(cma_used_fops, cma_used_get, NULL, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(cma_used_fops, cma_used_get, NULL, "%llu\n");
 static int cma_maxchunk_get(void *data, u64 *val)
@@ -66,7 +66,7 @@ static int cma_maxchunk_get(void *data,
 	return 0;
-DEFINE_SIMPLE_ATTRIBUTE(cma_maxchunk_fops, cma_maxchunk_get, NULL, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(cma_maxchunk_fops, cma_maxchunk_get, NULL, "%llu\n");
 static void cma_add_to_cma_mem_list(struct cma *cma, struct cma_mem *mem)
@@ -126,7 +126,7 @@ static int cma_free_write(void *data, u6
 	return cma_free_mem(cma, pages);
-DEFINE_SIMPLE_ATTRIBUTE(cma_free_fops, NULL, cma_free_write, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(cma_free_fops, NULL, cma_free_write, "%llu\n");
 static int cma_alloc_mem(struct cma *cma, int count)
@@ -158,7 +158,7 @@ static int cma_alloc_write(void *data, u
 	return cma_alloc_mem(cma, pages);
-DEFINE_SIMPLE_ATTRIBUTE(cma_alloc_fops, NULL, cma_alloc_write, "%llu\n");
+DEFINE_DEBUGFS_ATTRIBUTE(cma_alloc_fops, NULL, cma_alloc_write, "%llu\n");
 static void cma_debugfs_add_one(struct cma *cma, struct dentry *root_dentry)

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