mapping_set_error: add unlikely()
This is called on a per-page basis and in the vast majority of cases `error' is zero. Cc: Guillaume Chazarain <guichaz@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -22,7 +22,7 @@
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static inline void mapping_set_error(struct address_space *mapping, int error)
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static inline void mapping_set_error(struct address_space *mapping, int error)
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{
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{
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if (error) {
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if (unlikely(error)) {
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if (error == -ENOSPC)
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if (error == -ENOSPC)
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set_bit(AS_ENOSPC, &mapping->flags);
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set_bit(AS_ENOSPC, &mapping->flags);
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else
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else
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