[XFS] Keep stack usage down for 4k stacks by using noinline.

gcc-4.1 and more recent aggressively inline static functions which
increases XFS stack usage by ~15% in critical paths. Prevent this from
occurring by adding noinline to the STATIC definition.

Also uninline some functions that are too large to be inlined and were
causing problems with CONFIG_FORCED_INLINING=y.

Finally, clean up all the different users of inline, __inline and
__inline__ and put them under one STATIC_INLINE macro. For debug kernels
the STATIC_INLINE macro uninlines those functions.

SGI-PV: 957159
SGI-Modid: xfs-linux-melb:xfs-kern:27585a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: David Chatterton <chatz@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index d26f5cd2ba70..cb51dc961355 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -46,7 +46,7 @@ static struct vm_operations_struct xfs_file_vm_ops;
 static struct vm_operations_struct xfs_dmapi_file_vm_ops;
 #endif
 
-STATIC inline ssize_t
+STATIC_INLINE ssize_t
 __xfs_file_read(
         struct kiocb            *iocb,
         const struct iovec      *iov,
@@ -84,7 +84,7 @@ xfs_file_aio_read_invis(
         return __xfs_file_read(iocb, iov, nr_segs, IO_ISAIO|IO_INVIS, pos);
 }
 
-STATIC inline ssize_t
+STATIC_INLINE ssize_t
 __xfs_file_write(
         struct kiocb            *iocb,
         const struct iovec      *iov,