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
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
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