mm/readahead: Handle ractl nr_pages being modified

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Filesystems are not currently permitted to modify the number of pages
in the ractl.  An upcoming patch to add readahead_expand() changes that
rule, so remove the check and resync the loop counter after every call
to the filesystem.

Tested-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20210420200116.3715790-1-willy@infradead.org/
Link: https://lore.kernel.org/r/20210421170923.4005574-1-willy@infradead.org/ # v2

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Matthew Wilcox (Oracle) 2021-04-21 18:09:23 +01:00 • committed by David Howells

parent c790fbf20a

commit f615bd5c47

1 changed files with 2 additions and 2 deletions

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mm/readahead.c

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