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vfs: mnt_drop_write_file()

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new helper (wrapper around mnt_drop_write()) to be used in pair with
mnt_want_write_file().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2011-12-09 08:06:57 -05:00
parent 8c9379e972
commit 2a79f17e4a
22 changed files with 55 additions and 48 deletions
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fs/namespace.c
+6
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@@ -392,6 +392,12 @@ void mnt_drop_write(struct vfsmount *mnt)
}
EXPORT_SYMBOL_GPL(mnt_drop_write);
void mnt_drop_write_file(struct file *file)
{
mnt_drop_write(file->f_path.mnt);
}
EXPORT_SYMBOL(mnt_drop_write_file);
static int mnt_make_readonly(struct vfsmount *mnt)
{
int ret = 0;