Function report | 
Source Code:include\linux\buffer_head.h | 
Create Date:2022-07-28 12:16:02 | 
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick | 
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| Annotation kernel can get tool activity | Download SCCT | Chinese | 
Name:Emit the buffer bitops functions. Note that there are also functions* of the form "mark_buffer_foo()". These are higher-level functions which* do something in addition to setting a b_state bit.
Proto:static inline __attribute__((__always_inline__)) void set_buffer_uptodate(struct buffer_head *bh)
Type:void
Parameter:
| Type | Parameter | Name | 
|---|---|---|
| struct buffer_head * | bh | 
| 120 | If Not If __builtin_constant_p( Contains valid data ) Then constant_test_bit(( Contains valid data ), ( & buffer state bitmap (see above) )) Else variable_test_bit(( Contains valid data ), ( & buffer state bitmap (see above) )) Then Atomically set a bit in memory | 
| Name | Describe | 
|---|---|
| __end_buffer_read_notouch | End-of-IO handler helper function which does not touch the bh after* unlocking it | 
| end_buffer_write_sync | |
| 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. | 
| init_page_buffers | Initialise the state of a blockdev page's buffers. | 
| create_empty_buffers | We attach and possibly dirty the buffers atomically wrt* __set_page_dirty_buffers() via private_lock. try_to_free_buffers* is already excluded via the page lock. | 
| __block_write_full_page | While block_write_full_page is writing back the dirty buffers under* the page lock, whoever dirtied the buffers may decide to clean them* again at any time | 
| page_zero_new_buffers | If a page has any new buffers, zero them out here, and mark them uptodate* and dirty so they'll be written out (in order to prevent uninitialised* block data from leaking). And clear the new bit. | 
| iomap_to_bh | |
| __block_write_begin_int | |
| __block_commit_write | |
| block_read_full_page | Generic "read page" function for block devices that have the normal* get_block functionality | 
| nobh_write_begin | On entry, the page is fully not uptodate.* On exit the page is fully uptodate in the areas outside (from,to)* The filesystem needs to handle block truncation upon failure. | 
| block_truncate_page | 
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