From: Andiry Xu
The key of iomap is dax_get_blocks(). It first takes the read lock
and lookup the block; if the block is missing, it takes write lock,
check again and allocate the new block if needed.
Signed-off-by: Andiry Xu
---
fs/nova/dax.c | 184
From: Andiry Xu
The key of iomap is dax_get_blocks(). It first takes the read lock
and lookup the block; if the block is missing, it takes write lock,
check again and allocate the new block if needed.
Signed-off-by: Andiry Xu
---
fs/nova/dax.c | 184
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