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Linux 3.4 compat, __clear_close_on_exec replaces FD_CLR

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torvalds/linux@1dce27c5aa introduced
__clear_close_on_exec() as a replacement for FD_CLR. Further commits
appear to have removed FD_CLR from the Linux source tree.  This
causes the following failure:

  error: implicit declaration of function '__FD_CLR'
  [-Werror=implicit-function-declaration]

To correct this we update the code to use the current
__clear_close_on_exec() interface for readability.  Then we introduce
an autotools check to determine if __clear_close_on_exec() is available.
If it isn't then we define some compatibility logic which used the older
FD_CLR() interface.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #124
This commit is contained in:
Richard Yao
2012-06-06 16:51:53 +00:00
committed by Brian Behlendorf
parent eaac9ba510
commit e0093fea58
5 changed files with 167 additions and 1 deletions
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include/linux/file_compat.h
+4
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@@ -83,5 +83,9 @@ extern kern_path_parent_t kern_path_parent_fn;
# define spl_kern_path_parent(path, nd) path_lookup(path, LOOKUP_PARENT, nd)
#endif /* HAVE_KERN_PATH_PARENT_HEADER */
#ifndef HAVE_CLEAR_CLOSE_ON_EXEC
#define __clear_close_on_exec(fd, fdt) FD_CLR(fd, fdt->close_on_exec)
#endif
#endif /* SPL_FILE_COMPAT_H */