diff mbox

[2/4] file_ram_alloc: change length argument to size_t

Message ID 1340743869-12293-3-git-send-email-ehabkost@redhat.com
State New
Headers show

Commit Message

Eduardo Habkost June 26, 2012, 8:51 p.m. UTC
While we are at it, rename it to "length", as "memory" doesn't mean
anything.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 exec.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

Comments

Blue Swirl June 27, 2012, 5:19 p.m. UTC | #1
On Tue, Jun 26, 2012 at 8:51 PM, Eduardo Habkost <ehabkost@redhat.com> wrote:
> While we are at it, rename it to "length", as "memory" doesn't mean
> anything.
>
> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
> ---
>  exec.c |   12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/exec.c b/exec.c
> index 8244d54..5f3b265 100644
> --- a/exec.c
> +++ b/exec.c
> @@ -2354,7 +2354,7 @@ static long gethugepagesize(const char *path)
>  }
>
>  static void *file_ram_alloc(RAMBlock *block,
> -                            ram_addr_t memory,
> +                            size_t length,
>                             const char *path)
>  {
>     char *filename;
> @@ -2370,7 +2370,7 @@ static void *file_ram_alloc(RAMBlock *block,
>         return NULL;
>     }
>
> -    if (memory < hpagesize) {
> +    if (length < hpagesize) {
>         return NULL;
>     }
>
> @@ -2392,7 +2392,7 @@ static void *file_ram_alloc(RAMBlock *block,
>     unlink(filename);
>     free(filename);
>
> -    memory = (memory+hpagesize-1) & ~(hpagesize-1);
> +    length = (length+hpagesize-1) & ~(hpagesize-1);

Please add spaces around operators like '+' and '-'.

>
>     /*
>      * ftruncate is not supported by hugetlbfs in older
> @@ -2400,7 +2400,7 @@ static void *file_ram_alloc(RAMBlock *block,
>      * If anything goes wrong with it under other filesystems,
>      * mmap will fail.
>      */
> -    if (ftruncate(fd, memory))
> +    if (ftruncate(fd, length))

Missing braces.

The above problems could be detected with scripts/checkpatch.pl.

>         perror("ftruncate");
>
>  #ifdef MAP_POPULATE
> @@ -2409,9 +2409,9 @@ static void *file_ram_alloc(RAMBlock *block,
>      * to sidestep this quirk.
>      */
>     flags = mem_prealloc ? MAP_POPULATE | MAP_SHARED : MAP_PRIVATE;
> -    area = mmap(0, memory, PROT_READ | PROT_WRITE, flags, fd, 0);
> +    area = mmap(0, length, PROT_READ | PROT_WRITE, flags, fd, 0);
>  #else
> -    area = mmap(0, memory, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
> +    area = mmap(0, length, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
>  #endif
>     if (area == MAP_FAILED) {
>         perror("file_ram_alloc: can't mmap RAM pages");
> --
> 1.7.10.4
>
>
diff mbox

Patch

diff --git a/exec.c b/exec.c
index 8244d54..5f3b265 100644
--- a/exec.c
+++ b/exec.c
@@ -2354,7 +2354,7 @@  static long gethugepagesize(const char *path)
 }
 
 static void *file_ram_alloc(RAMBlock *block,
-                            ram_addr_t memory,
+                            size_t length,
                             const char *path)
 {
     char *filename;
@@ -2370,7 +2370,7 @@  static void *file_ram_alloc(RAMBlock *block,
         return NULL;
     }
 
-    if (memory < hpagesize) {
+    if (length < hpagesize) {
         return NULL;
     }
 
@@ -2392,7 +2392,7 @@  static void *file_ram_alloc(RAMBlock *block,
     unlink(filename);
     free(filename);
 
-    memory = (memory+hpagesize-1) & ~(hpagesize-1);
+    length = (length+hpagesize-1) & ~(hpagesize-1);
 
     /*
      * ftruncate is not supported by hugetlbfs in older
@@ -2400,7 +2400,7 @@  static void *file_ram_alloc(RAMBlock *block,
      * If anything goes wrong with it under other filesystems,
      * mmap will fail.
      */
-    if (ftruncate(fd, memory))
+    if (ftruncate(fd, length))
         perror("ftruncate");
 
 #ifdef MAP_POPULATE
@@ -2409,9 +2409,9 @@  static void *file_ram_alloc(RAMBlock *block,
      * to sidestep this quirk.
      */
     flags = mem_prealloc ? MAP_POPULATE | MAP_SHARED : MAP_PRIVATE;
-    area = mmap(0, memory, PROT_READ | PROT_WRITE, flags, fd, 0);
+    area = mmap(0, length, PROT_READ | PROT_WRITE, flags, fd, 0);
 #else
-    area = mmap(0, memory, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
+    area = mmap(0, length, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
 #endif
     if (area == MAP_FAILED) {
         perror("file_ram_alloc: can't mmap RAM pages");