Lines Matching refs:i_mmap_writable
450 * @i_mmap_writable: Number of VM_SHARED, VM_MAYWRITE mappings.
453 * @i_mmap_rwsem: Protects @i_mmap and @i_mmap_writable.
468 atomic_t i_mmap_writable;
553 * Note that i_mmap_writable counts all VM_SHARED, VM_MAYWRITE vmas: do_mmap
557 * If i_mmap_writable is negative, no new writable mappings are allowed. You
562 return atomic_read(&mapping->i_mmap_writable) > 0;
567 return atomic_inc_unless_negative(&mapping->i_mmap_writable) ?
573 atomic_dec(&mapping->i_mmap_writable);
578 return atomic_dec_unless_positive(&mapping->i_mmap_writable) ?
584 atomic_inc(&mapping->i_mmap_writable);