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INVALIDATE_MAPPING_P(9) Memory Management in Linux INVALIDATE_MAPPING_P(9)

NAME

invalidate_mapping_pages - Invalidate all the unlocked pages of one inode

SYNOPSIS

unsigned long invalidate_mapping_pages(struct address_space * mapping, pgoff_t start, pgoff_t end);

ARGUMENTS

mapping
the address_space which holds the pages to invalidate

start

the offset 'from' which to invalidate

end

the offset 'to' which to invalidate (inclusive)

DESCRIPTION

This function only removes the unlocked pages, if you want to remove all the pages of one inode, you must call truncate_inode_pages.

invalidate_mapping_pages will not block on IO activity. It will not invalidate pages which are dirty, locked, under writeback or mapped into pagetables.

COPYRIGHT

April 2019 Kernel Hackers Manual 4.9.