Function report |
Source Code:fs\buffer.c |
Create Date:2022-07-28 20:14:09 |
Last Modify:2020-03-18 10:38:29 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:Install a buffer_head into this cpu's LRU. If not already in the LRU, it is* inserted at the front, and the buffer_head at the back if any is evicted.* Or, if already in the LRU it is moved to the front.
Proto:static void bh_lru_install(struct buffer_head *bh)
Type:void
Parameter:
Type | Parameter | Name |
---|---|---|
struct buffer_head * | bh |
1274 | check_irqs_on() |
1275 | bh_lru_lock() |
1277 | b = this_cpu_ptr( & bh_lrus) |
1281 | bh_lru_unlock() |
1282 | Return |
1287 | bh_lru_unlock() |
Name | Describe |
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__find_get_block | Perform a pagecache lookup for the matching buffer. If it's there, refresh* it in the LRU and mark it as accessed. If it is not present then return* NULL |
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