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authorDavid Chinner <dgc@sgi.com>2007-02-10 02:34:56 -0500
committerTim Shimmin <tes@sgi.com>2007-02-10 02:34:56 -0500
commit7989cb8ef5dbc1411d3be48218c7b25ef6e71699 (patch)
tree607efa745911951a30712de44a837c1df952bd3a /fs/xfs/linux-2.6/xfs_file.c
parent5e6a07dfe404cd4d8494d842b54706cb007fa04b (diff)
[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>
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_file.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_file.c4
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;
46static struct vm_operations_struct xfs_dmapi_file_vm_ops; 46static struct vm_operations_struct xfs_dmapi_file_vm_ops;
47#endif 47#endif
48 48
49STATIC inline ssize_t 49STATIC_INLINE ssize_t
50__xfs_file_read( 50__xfs_file_read(
51 struct kiocb *iocb, 51 struct kiocb *iocb,
52 const struct iovec *iov, 52 const struct iovec *iov,
@@ -84,7 +84,7 @@ xfs_file_aio_read_invis(
84 return __xfs_file_read(iocb, iov, nr_segs, IO_ISAIO|IO_INVIS, pos); 84 return __xfs_file_read(iocb, iov, nr_segs, IO_ISAIO|IO_INVIS, pos);
85} 85}
86 86
87STATIC inline ssize_t 87STATIC_INLINE ssize_t
88__xfs_file_write( 88__xfs_file_write(
89 struct kiocb *iocb, 89 struct kiocb *iocb,
90 const struct iovec *iov, 90 const struct iovec *iov,