Messages in this thread Patch in this message | | | Date | Thu, 7 Feb 2008 12:47:37 -0800 | From | Greg KH <> | Subject | [patch 25/45] sys_remap_file_pages: fix ->vm_file accounting |
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2.6.24-stable review patch. If anyone has any objections, please let us know.
------------------ From: Oleg Nesterov <oleg@tv-sign.ru>
patch 8a459e44ad837018ea5c34a9efe8eb4ad27ded26 in mainline.
Fix ->vm_file accounting, mmap_region() may do do_munmap().
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> ---
mm/fremap.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
--- a/mm/fremap.c +++ b/mm/fremap.c @@ -190,10 +190,13 @@ asmlinkage long sys_remap_file_pages(uns */ if (mapping_cap_account_dirty(mapping)) { unsigned long addr; + struct file *file = vma->vm_file; flags &= MAP_NONBLOCK; - addr = mmap_region(vma->vm_file, start, size, + get_file(file); + addr = mmap_region(file, start, size, flags, vma->vm_flags, pgoff, 1); + fput(file); if (IS_ERR_VALUE(addr)) { err = addr; } else { --
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