On Tue, Mar 13, 2018 at 06:25:58PM +0530, Ravi Bangoria wrote:
> 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().
>
> No functionality changes.
>
> Signed-off-by: Ravi Bangoria <ravi.bango...@linux.vnet.ibm.com>
Same coccinelle comments as previously.
Reviewed-by: Jérôme Glisse <jgli...@redhat.com>
> ---
> kernel/events/uprobes.c | 32 +++++++++++++++++---------------
> 1 file changed, 17 insertions(+), 15 deletions(-)
>
> diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
> index 535fd39..081b88c1 100644
> --- a/kernel/events/uprobes.c
> +++ b/kernel/events/uprobes.c
> @@ -695,27 +695,29 @@ 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;
> 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:
> @@ -729,7 +731,7 @@ 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;
> @@ -762,7 +764,7 @@ 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;
> @@ -774,7 +776,7 @@ static inline struct map_info *free_map_info(struct
> map_info *info)
> goto again;
> out:
> while (prev)
> - prev = free_map_info(prev);
> + prev = uprobe_free_map_info(prev);
> return curr;
> }
>
> @@ -782,11 +784,11 @@ 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);
> @@ -825,7 +827,7 @@ static inline struct map_info *free_map_info(struct
> map_info *info)
> up_write(&mm->mmap_sem);
> free:
> mmput(mm);
> - 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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