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authorDavid Howells <dhowells@redhat.com>2020-10-15 20:06:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-16 11:11:16 -0700
commit7b3df3b9ac7e807bf1b6fcc03077bd80068f3d3c (patch)
tree04a4b6ada15f6e5cb28f9dae0fbaa6458c3ab6d4 /mm/internal.h
parent6e4af69ae9b7ca1bc2f82d3bf061ef8abedeabc4 (diff)
downloadlinux-7b3df3b9ac7e807bf1b6fcc03077bd80068f3d3c.tar.bz2
mm/readahead: pass readahead_control to force_page_cache_ra
Reimplement force_page_cache_readahead() as a wrapper around force_page_cache_ra(). Pass the existing readahead_control from page_cache_sync_readahead(). Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Eric Biggers <ebiggers@google.com> Link: https://lkml.kernel.org/r/20200903140844.14194-7-willy@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/internal.h')
-rw-r--r--mm/internal.h13
1 files changed, 9 insertions, 4 deletions
diff --git a/mm/internal.h b/mm/internal.h
index 41ade6c184ec..059ad0115ec1 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -49,10 +49,15 @@ void unmap_page_range(struct mmu_gather *tlb,
unsigned long addr, unsigned long end,
struct zap_details *details);
-void force_page_cache_readahead(struct address_space *, struct file *,
- pgoff_t index, unsigned long nr_to_read);
-void do_page_cache_ra(struct readahead_control *,
- unsigned long nr_to_read, unsigned long lookahead_size);
+void do_page_cache_ra(struct readahead_control *, unsigned long nr_to_read,
+ unsigned long lookahead_size);
+void force_page_cache_ra(struct readahead_control *, unsigned long nr);
+static inline void force_page_cache_readahead(struct address_space *mapping,
+ struct file *file, pgoff_t index, unsigned long nr_to_read)
+{
+ DEFINE_READAHEAD(ractl, file, mapping, index);
+ force_page_cache_ra(&ractl, nr_to_read);
+}
/*
* Submit IO for the read-ahead request in file_ra_state.