7989cb8ef5
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>
74 lines
2.2 KiB
C
74 lines
2.2 KiB
C
/*
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* Copyright (c) 2000-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef __XFS_SUPPORT_DEBUG_H__
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#define __XFS_SUPPORT_DEBUG_H__
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#include <stdarg.h>
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#define CE_DEBUG 7 /* debug */
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#define CE_CONT 6 /* continuation */
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#define CE_NOTE 5 /* notice */
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#define CE_WARN 4 /* warning */
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#define CE_ALERT 1 /* alert */
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#define CE_PANIC 0 /* panic */
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extern void icmn_err(int, char *, va_list)
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__attribute__ ((format (printf, 2, 0)));
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extern void cmn_err(int, char *, ...)
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__attribute__ ((format (printf, 2, 3)));
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extern void assfail(char *expr, char *f, int l);
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#define ASSERT_ALWAYS(expr) \
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(unlikely((expr) != 0) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
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#ifndef DEBUG
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# define ASSERT(expr) ((void)0)
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#ifndef STATIC
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# define STATIC static noinline
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#endif
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#ifndef STATIC_INLINE
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# define STATIC_INLINE static inline
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#endif
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#else /* DEBUG */
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# define ASSERT(expr) ASSERT_ALWAYS(expr)
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extern unsigned long random(void);
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#ifndef STATIC
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# define STATIC noinline
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#endif
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/*
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* We stop inlining of inline functions in debug mode.
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* Unfortunately, this means static inline in header files
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* get multiple definitions, so they need to remain static.
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* This then gives tonnes of warnings about unused but defined
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* functions, so we need to add the unused attribute to prevent
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* these spurious warnings.
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*/
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#ifndef STATIC_INLINE
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# define STATIC_INLINE static __attribute__ ((unused)) noinline
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#endif
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#endif /* DEBUG */
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#endif /* __XFS_SUPPORT_DEBUG_H__ */
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