函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\radix-tree.c Create Date:2022-07-27 07:10:16
Last Modify:2022-05-21 10:04:37 Copyright©Brick
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函数名称:The same as above function, except we don't guarantee preloading happens.* We do it, if we decide it helps. On success, return zero with preemption* disabled. On error, return -ENOMEM with preemption not disabled.

函数原型:int radix_tree_maybe_preload(gfp_t gfp_mask)

返回类型:int

参数:

类型参数名称
gfp_tgfp_mask
390  如果gfpflags_allow_blocking(gfp_mask)则返回:Load up this CPU's radix_tree_node buffer with sufficient objects to* ensure that the addition of a single element in the tree cannot fail
393  禁止抢占()
394  返回:0
调用者
名称描述
ioc_create_icq_create_icq - create and link io_cq*@ioc: io_context of interest*@q: request_queue of interest*@gfp_mask: allocation mask* Make sure io_cq linking @ioc and @q exists