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 07:31:39
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Check that the pointer / value / sibling entries are accounted the* way we expect them to be.

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

返回类型：void

参数：

类型参数名称
struct xarray *xa
1574  以order小于12循环
1575  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, 1 << order)
1577  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.
1578  _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
1579  xas_load() - Load an entry from the XArray (advanced).*@xas: XArray operation state.* Usually walks the @xas to the appropriate state to load the entry* stored at xa_index. However, it will do nothing and return %NULL if*@xas is in an error state
1580  XA_BUG_ON(xa, count == 0)
1581  XA_BUG_ON(xa, count > (1 << order))
1582  XA_BUG_ON(xa, nr_values != 0)
1583  _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()
1585  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.
1587  XA_BUG_ON(xa, count != nr_values * 2)
1589  xa_erase() - Erase this entry from the XArray.*@xa: XArray.*@index: Index of entry.* After this function returns, loading from @index will return %NULL.* If the index is part of a multi-index entry, all indices will be erased
1590  XA_BUG_ON(xa, nr_values != 0)
1592  xa_erase() - Erase this entry from the XArray.*@xa: XArray.*@index: Index of entry.* After this function returns, loading from @index will return %NULL.* If the index is part of a multi-index entry, all indices will be erased
1593  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
xarray_checks