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btrfs: make clear_extent_bit helpers static inline

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The funcions just wrap the clear_extent_bit API and generate function
calls. This increases stack consumption and may negatively affect
performance due to icache misses. We can simply make the helpers static
inline and keep the type checking and API untouched. The code slightly
decreases:

   text	   data	    bss	    dec	    hex	filename
 938667	  43670	  23144	1005481	  f57a9	fs/btrfs/btrfs.ko.before
 939651	  43670	  23144	1006465	  f5b81	fs/btrfs/btrfs.ko.after

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba
2015-12-03 14:08:11 +01:00
parent c63179556a
commit e83b1d91f8
2 changed files with 38 additions and 48 deletions
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39
fs/btrfs/extent_io.c
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@@ -1309,17 +1309,6 @@ int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
cached, mask, NULL);
}
int clear_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits, gfp_t mask)
{
int wake = 0;
if (bits & EXTENT_LOCKED)
wake = 1;
return clear_extent_bit(tree, start, end, bits, wake, 0, NULL, mask);
}
int clear_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits, gfp_t mask,
struct extent_changeset *changeset)
@@ -1334,21 +1323,6 @@ int clear_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
changeset);
}
int clear_extent_dirty(struct extent_io_tree *tree, u64 start, u64 end,
gfp_t mask)
{
return clear_extent_bit(tree, start, end,
EXTENT_DIRTY | EXTENT_DELALLOC |
EXTENT_DO_ACCOUNTING, 0, 0, NULL, mask);
}
int clear_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
struct extent_state **cached_state, gfp_t mask)
{
return clear_extent_bit(tree, start, end, EXTENT_UPTODATE, 0, 0,
cached_state, mask);
}
/*
* either insert or lock state struct between start and end use mask to tell
* us if waiting is desired.
@@ -1394,19 +1368,6 @@ int try_lock_extent(struct extent_io_tree *tree, u64 start, u64 end)
return 1;
}
int unlock_extent_cached(struct extent_io_tree *tree, u64 start, u64 end,
struct extent_state **cached, gfp_t mask)
{
return clear_extent_bit(tree, start, end, EXTENT_LOCKED, 1, 0, cached,
mask);
}
int unlock_extent(struct extent_io_tree *tree, u64 start, u64 end)
{
return clear_extent_bit(tree, start, end, EXTENT_LOCKED, 1, 0, NULL,
GFP_NOFS);
}
int extent_range_clear_dirty_for_io(struct inode *inode, u64 start, u64 end)
{
unsigned long index = start >> PAGE_CACHE_SHIFT;