[PATCH] xfs: #define out unused parameters for seven functions in xfs_trans.h

[Denys Vlasenko]

Hi David,

Seven xfs_trans_XXX functions declared in xfs_trans.h
are not using "tp" parameter in non-debug builds,
but it still takes stack space since these functions
are not static and gcc cannot optimize it out.

This patch removes these parameters using #define hack
which makes them "disappear" without the need of uglifying
every callsite with #ifdefs.

Code size difference on 32-bit x86:
 393441    2904    2952  399297   617c1 linux-2.6-xfs7-TEST/fs/xfs/xfs.o
 393289    2904    2952  399145   61729 linux-2.6-xfs8-TEST/fs/xfs/xfs.o

Compile tested only.

Signed-off-by: Denys Vlasenko <vda.linux@xxxxxxxxxxxxxx>
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vda
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