btrfs: Use filemap_range_has_page()

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The current implementation of btrfs_page_exists_in_range() gives the
wrong answer if the workingset code has stored a shadow entry in the
page cache.  The filemap_range_has_page() function does not have this
problem, and it's shared code, so use it instead.

eigned-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Matthew Wilcox 2018-03-06 11:23:16 -08:00 • committed by David Sterba

parent 4759700a71

commit 965aab1cfc

2 changed files with 5 additions and 71 deletions

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6

fs/btrfs/btrfs_inode.h

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70

fs/btrfs/inode.c

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