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Subject[PATCH v3 4/9] Uprobe: Rename map_info to uprobe_map_info
Date
From: Ravi Bangoria <ravi.bangoria@linux.ibm.com>

map_info is very generic name, rename it to uprobe_map_info.
Renaming will help to export this structure outside of the
file.

Also rename free_map_info() to uprobe_free_map_info() and
build_map_info() to uprobe_build_map_info().

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Reviewed-by: Jérôme Glisse <jglisse@redhat.com>
---
kernel/events/uprobes.c | 30 ++++++++++++++++--------------
1 file changed, 16 insertions(+), 14 deletions(-)

diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 1d439c7..477dc42 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -695,28 +695,30 @@ static void delete_uprobe(struct uprobe *uprobe)
put_uprobe(uprobe);
}

-struct map_info {
- struct map_info *next;
+struct uprobe_map_info {
+ struct uprobe_map_info *next;
struct mm_struct *mm;
unsigned long vaddr;
};

-static inline struct map_info *free_map_info(struct map_info *info)
+static inline struct uprobe_map_info *
+uprobe_free_map_info(struct uprobe_map_info *info)
{
- struct map_info *next = info->next;
+ struct uprobe_map_info *next = info->next;
mmput(info->mm);
kfree(info);
return next;
}

-static struct map_info *
-build_map_info(struct address_space *mapping, loff_t offset, bool is_register)
+static struct uprobe_map_info *
+uprobe_build_map_info(struct address_space *mapping, loff_t offset,
+ bool is_register)
{
unsigned long pgoff = offset >> PAGE_SHIFT;
struct vm_area_struct *vma;
- struct map_info *curr = NULL;
- struct map_info *prev = NULL;
- struct map_info *info;
+ struct uprobe_map_info *curr = NULL;
+ struct uprobe_map_info *prev = NULL;
+ struct uprobe_map_info *info;
int more = 0;

again:
@@ -730,7 +732,7 @@ static inline struct map_info *free_map_info(struct map_info *info)
* Needs GFP_NOWAIT to avoid i_mmap_rwsem recursion through
* reclaim. This is optimistic, no harm done if it fails.
*/
- prev = kmalloc(sizeof(struct map_info),
+ prev = kmalloc(sizeof(struct uprobe_map_info),
GFP_NOWAIT | __GFP_NOMEMALLOC | __GFP_NOWARN);
if (prev)
prev->next = NULL;
@@ -763,7 +765,7 @@ static inline struct map_info *free_map_info(struct map_info *info)
}

do {
- info = kmalloc(sizeof(struct map_info), GFP_KERNEL);
+ info = kmalloc(sizeof(struct uprobe_map_info), GFP_KERNEL);
if (!info) {
curr = ERR_PTR(-ENOMEM);
goto out;
@@ -786,11 +788,11 @@ static inline struct map_info *free_map_info(struct map_info *info)
register_for_each_vma(struct uprobe *uprobe, struct uprobe_consumer *new)
{
bool is_register = !!new;
- struct map_info *info;
+ struct uprobe_map_info *info;
int err = 0;

percpu_down_write(&dup_mmap_sem);
- info = build_map_info(uprobe->inode->i_mapping,
+ info = uprobe_build_map_info(uprobe->inode->i_mapping,
uprobe->offset, is_register);
if (IS_ERR(info)) {
err = PTR_ERR(info);
@@ -828,7 +830,7 @@ static inline struct map_info *free_map_info(struct map_info *info)
unlock:
up_write(&mm->mmap_sem);
free:
- info = free_map_info(info);
+ info = uprobe_free_map_info(info);
}
out:
percpu_up_write(&dup_mmap_sem);
--
1.8.3.1
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