Function report |
Source Code:include\linux\buffer_head.h |
Create Date:2022-07-28 12:16:12 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:buffer_mapped
Proto:static inline __attribute__((__always_inline__)) int buffer_mapped(const struct buffer_head *bh)
Type:int
Parameter:
Type | Parameter | Name |
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const struct buffer_head * | bh |
126 | Return If __builtin_constant_p( Has a disk mapping ) Then constant_test_bit(( Has a disk mapping ), ( & buffer state bitmap (see above) )) Else variable_test_bit(( Has a disk mapping ), ( & buffer state bitmap (see above) )) |
Name | Describe |
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__generic_block_fiemap | __generic_block_fiemap - FIEMAP for block based inodes (no locking)*@inode: the inode to map*@fieinfo: the fiemap info struct that will be passed back to userspace*@start: where to start mapping in the inode*@len: how much space to map*@get_block: the |
__find_get_block_slow | Various filesystems appear to want __find_get_block to be non-blocking |
init_page_buffers | Initialise the state of a blockdev page's buffers. |
clean_bdev_aliases | lean_bdev_aliases: clean a range of buffers in block device*@bdev: Block device to clean buffers in*@block: Start of a range of blocks to clean*@len: Number of blocks to clean* We are taking a range of blocks for data and we don't want writeback of any* |
__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 |
__block_write_begin_int | |
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. |
nobh_truncate_page | |
block_truncate_page | |
submit_bh_wbc | |
do_direct_IO | Walk the user pages, and the file, mapping blocks to disk and generating* a sequence of (page,offset,len,block) mappings. These mappings are injected* into submit_page_section(), which takes care of the next stage of submission |
do_mpage_readpage | This is the worker routine which does all the work of mapping the disk* blocks and constructs largest possible bios, submits them for IO if the* blocks are not contiguous on the disk |
__mpage_writepage |
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