函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\test_xarray.c Create Date:2022-07-27 07:31:19
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：check_multi_find_2

函数原型：static noinline void check_multi_find_2(struct xarray *xa)

返回类型：void

参数：

类型参数名称
struct xarray *xa
940  max_order等于如果IS_ENABLED(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y' or 'm',* 0 otherwise.(CONFIG_XARRAY_MULTI)则10否则1
944  以i小于max_order循环
945  index等于1UL左移i位
946  以j小于index循环
947  XA_STATE() - Declare an XArray operation state.*@name: Name of this operation state (usually xas).*@array: Array to operate on.*@index: Initial index of interest.* Declare and initialise an xa_state on the stack.(xas, xa, j + index)
948  xa_store_index(xa, index - 1, GFP_KERNEL)
949  If anyone needs this, please move it to xarray.c. We have no current* users outside the test suite because all current multislot users want* to use the advanced API.
951  _read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other
953  xa_erase_index(xa, index)
955  _read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()
956  xa_erase_index(xa, index - 1)
957  XA_BUG_ON(xa, !xa_empty() - Determine if an array has any present entries.*@xa: XArray.* Context: Any context.* Return: %true if the array contains only NULL pointers.)
调用者
名称描述
check_find