Function report |
Source Code:mm\swap_cgroup.c |
Create Date:2022-07-28 16:15:53 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:swap_cgroup_swapon
Proto:int swap_cgroup_swapon(int type, unsigned long max_pages)
Type:int
Parameter:
Type | Parameter | Name |
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int | type | |
unsigned long | max_pages |
174 | If Not Whether the swap controller is active Then Return 0 |
177 | length = DIV_ROUND_UP(max_pages, SC_PER_PAGE) |
178 | array_size = length * size of * |
184 | ctrl = swap_cgroup_ctrl[type] |
185 | mutex_lock( & swap_cgroup_mutex) |
188 | Process spin lock initialization( & lock) |
189 | If allocate buffer for swap_cgroup. Then |
199 | Return 0 |
200 | nomem : |
201 | pr_info("couldn't allocate enough memory for swap_cgroup\n") |
202 | pr_info("swap_cgroup can be disabled by swapaccount=0 boot option\n") |
203 | Return -ENOMEM |
Name | Describe |
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SYSCALL_DEFINE2 |
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