buffer_locked

函数名称：buffer_locked

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

返回类型：int

参数：

类型	参数	名称
const struct buffer_head *	bh

123

返回:如果__builtin_constant_p( Is locked )则constant_test_bit(( Is locked ), ( & buffer state bitmap (see above) ))否则variable_test_bit(( Is locked ), ( & buffer state bitmap (see above) ))

**调用者**
名称	描述
buffer_check_dirty_writeback	Returns if the page has dirty or writeback buffers. If all the buffers* are unlocked and clean then the PageDirty information is stale. If* any of the pages are locked, it is assumed they are locked for IO.
end_buffer_async_read
end_buffer_async_write	Completion handler for block_write_full_page() - pages which are unlocked* during I/O, and which have PageWriteback cleared upon I/O completion.
osync_buffers_list	sync is designed to support O_SYNC io
fsync_buffers_list
submit_bh_wbc
bh_submit_read	h_submit_read - Submit a locked buffer for reading@bh: struct buffer_head Returns zero on success and -EIO on error.
__mpage_writepage
wait_on_buffer

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码