Messages in this thread Patch in this message | | | Subject | [RFC/PATCH 4/4] madvice/fadvice: execute in place (3rd version) | From | Carsten Otte <> | Date | Mon, 23 May 2005 19:30:42 +0200 |
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[RFC/PATCH 4/4] madvice/fadvice: execute in place (3rd version)
Make sys_madvice/fadvice return sane with xip. Patch is unchanged from previous version.
Signed-off-by: Carsten Otte <cotte@de.ibm.com> --- diff -ruN linux-git/mm/fadvise.c linux-git-xip/mm/fadvise.c --- linux-git/mm/fadvise.c 2005-05-23 13:51:17.000000000 +0200 +++ linux-git-xip/mm/fadvise.c 2005-05-23 17:55:49.000000000 +0200 @@ -43,6 +43,10 @@ goto out; } + if (mapping->a_ops->get_xip_page) + /* no bad return value, but ignore advice */ + goto out; + /* Careful about overflows. Len == 0 means "as much as possible" */ endbyte = offset + len; if (!len || endbyte < len) diff -ruN linux-git/mm/madvise.c linux-git-xip/mm/madvise.c --- linux-git/mm/madvise.c 2005-05-23 13:51:17.000000000 +0200 +++ linux-git-xip/mm/madvise.c 2005-05-23 17:55:49.000000000 +0200 @@ -65,6 +65,10 @@ if (!file) return -EBADF; + if (file->f_mapping->a_ops->get_xip_page) + /* no bad return value, but ignore advice */ + return 0; + start = ((start - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff; if (end > vma->vm_end) end = vma->vm_end;
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