[PATCH 1/2] btrfs: remove pointless readahead callback wrapper

[fdmanana@kernel.org]

From: Filipe Manana <fdmanana@suse.com>

There's no point in having a static readahead callback in inode.c that
does nothing besides calling extent_readahead() from extent_io.c.
So just remove the callback at inode.c and rename extent_readahead()
to btrfs_readahead().

Signed-off-by: Filipe Manana <fdmanana@suse.com>
---
 fs/btrfs/extent_io.c | 2 +-
 fs/btrfs/extent_io.h | 2 +-
 fs/btrfs/inode.c     | 5 -----
 3 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 7441245b1ceb..47a299b0fa2d 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2277,7 +2277,7 @@ int extent_writepages(struct address_space *mapping,
 	return ret;
 }
 
-void extent_readahead(struct readahead_control *rac)
+void btrfs_readahead(struct readahead_control *rac)
 {
 	struct btrfs_bio_ctrl bio_ctrl = { .opf = REQ_OP_READ | REQ_RAHEAD };
 	struct page *pagepool[16];
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index e3530d427e1f..eb123b0499e1 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -241,7 +241,7 @@ int extent_writepages(struct address_space *mapping,
 		      struct writeback_control *wbc);
 int btree_write_cache_pages(struct address_space *mapping,
 			    struct writeback_control *wbc);
-void extent_readahead(struct readahead_control *rac);
+void btrfs_readahead(struct readahead_control *rac);
 int extent_fiemap(struct btrfs_inode *inode, struct fiemap_extent_info *fieinfo,
 		  u64 start, u64 len);
 int set_folio_extent_mapped(struct folio *folio);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 37701531eeb1..e447a4f1d926 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7919,11 +7919,6 @@ static int btrfs_writepages(struct address_space *mapping,
 	return extent_writepages(mapping, wbc);
 }
 
-static void btrfs_readahead(struct readahead_control *rac)
-{
-	extent_readahead(rac);
-}
-
 /*
  * For release_folio() and invalidate_folio() we have a race window where
  * folio_end_writeback() is called but the subpage spinlock is not yet released.
-- 
2.43.0