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| author | Oleg Nesterov <oleg@tv-sign.ru> | 2008-02-04 22:27:18 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-05 09:44:07 -0800 |
| commit | 8a459e44ad837018ea5c34a9efe8eb4ad27ded26 (patch) | |
| tree | b2c479cc980c9793677302574005b97e05732d74 /mm/fremap.c | |
| parent | c0b49b0d164c4902e53c17d90e2c5e5a2ac9e132 (diff) | |
| download | lwn-8a459e44ad837018ea5c34a9efe8eb4ad27ded26.tar.gz lwn-8a459e44ad837018ea5c34a9efe8eb4ad27ded26.zip | |
sys_remap_file_pages: fix ->vm_file accounting
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>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/fremap.c')
| -rw-r--r-- | mm/fremap.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/fremap.c b/mm/fremap.c index 14bd3bf7826e..69a37c2bdf81 100644 --- a/mm/fremap.c +++ b/mm/fremap.c @@ -190,10 +190,13 @@ asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, */ 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 { |