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    Subject[Patch 1/9] fs/exec.c: export free_arg_pages
    Date
    free_arg_pages() is used to clean the pages allocated by copy_strings_kenrel().
    Since copy_strings_kernel() is exported, so should be free_arg_pages().

    Signed-off-by: WANG Cong <wangcong@zeuux.org>
    Cc: Alexander Viro <viro@zeniv.linux.org.uk>

    ---
    diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
    index b512e48..a2bfa57 100644
    --- a/include/linux/binfmts.h
    +++ b/include/linux/binfmts.h
    @@ -96,6 +96,7 @@ extern int setup_arg_pages(struct linux_binprm * bprm,
    int executable_stack);
    extern int bprm_mm_init(struct linux_binprm *bprm);
    extern int copy_strings_kernel(int argc,char ** argv,struct linux_binprm *bprm);
    +extern void free_arg_pages(struct linux_binprm *bprm);
    extern void compute_creds(struct linux_binprm *binprm);
    extern int do_coredump(long signr, int exit_code, struct pt_regs * regs);
    extern int set_binfmt(struct linux_binfmt *new);
    diff --git a/fs/exec.c b/fs/exec.c
    index aeaa979..b49ba41 100644
    --- a/fs/exec.c
    +++ b/fs/exec.c
    @@ -210,7 +210,7 @@ static void free_arg_page(struct linux_binprm *bprm, int i)
    {
    }

    -static void free_arg_pages(struct linux_binprm *bprm)
    +void free_arg_pages(struct linux_binprm *bprm)
    {
    }

    @@ -301,7 +301,7 @@ static void free_arg_page(struct linux_binprm *bprm, int i)
    }
    }

    -static void free_arg_pages(struct linux_binprm *bprm)
    +void free_arg_pages(struct linux_binprm *bprm)
    {
    int i;

    @@ -327,6 +327,8 @@ static bool valid_arg_len(struct linux_binprm *bprm, long len)

    #endif /* CONFIG_MMU */

    +EXPORT_SYMBOL(free_arg_pages);
    +
    /*
    * Create a new mm_struct and populate it with a temporary stack
    * vm_area_struct. We don't have enough context at this point to set the stack

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      Last update: 2008-05-08 15:57    [W:0.022 / U:59.452 seconds]
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