[PATCH] ntfs: don't disable interrupts during kmap_atomic()

2018-05-04 Thread Sebastian Andrzej Siewior
ntfs_end_buffer_async_read() disables interrupts around kmap_atomic(). This is a leftover from the old kmap_atomic() implementation which relied on fixed mapping slots, so the caller had to make sure that the same slot could not be reused from an interrupting context. kmap_atomic() was changed to

[PATCH] ntfs: don't disable interrupts during kmap_atomic()

2018-05-04 Thread Sebastian Andrzej Siewior
ntfs_end_buffer_async_read() disables interrupts around kmap_atomic(). This is a leftover from the old kmap_atomic() implementation which relied on fixed mapping slots, so the caller had to make sure that the same slot could not be reused from an interrupting context. kmap_atomic() was changed to