函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\buffer_head.h Create Date:2022-07-27 13:23:24
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：buffer_defer_completion

函数原型：static inline __attribute__((__always_inline__)) int buffer_defer_completion(const struct buffer_head *bh)

返回类型：int

参数：

类型参数名称
const struct buffer_head *bh
136  返回:如果__builtin_constant_p( Defer AIO completion to workqueue )则constant_test_bit(( Defer AIO completion to workqueue ), ( & buffer state bitmap (see above) ))否则variable_test_bit(( Defer AIO completion to workqueue ), ( & buffer state bitmap (see above) ))
调用者
名称描述
get_more_blocksCall into the fs to map some more disk blocks. We record the current number* of available blocks at sdio->blocks_available. These are in units of the* fs blocksize, i_blocksize(inode).* The fs is allowed to map lots of blocks at once