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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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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