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lib/test_sort.c: add module unload support

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test_sort.c performs array-based and linked list sort test.  Code allows
to compile either as a loadable modules or builtin into the kernel.

Current code is not allow to unload the test_sort.ko module after
successful completion.

This patch adds support to unload the "test_sort.ko" module by adding
module_exit support.

Previous patch was implemented auto unload support by returning -EAGAIN
from module_init() function on successful case, but this approach is not
ideal.

The auto-unload might seem like a nice optimization, but it encourages
inconsistent behaviour.  And behaviour that is different from all other
normal modules.

Link: http://lkml.kernel.org/r/1513967133-6843-1-git-send-email-pravin.shedge4linux@gmail.com
Signed-off-by: Pravin Shedge <pravin.shedge4linux@gmail.com>
Cc: Kostenzer Felix <fkostenzer@live.at>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Pravin Shedge 2018-02-06 15:38:42 -08:00 committed by Linus Torvalds
parent d3deafaa8b
commit 92fc7cb8ae
1 changed files with 6 additions and 0 deletions
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6
lib/test_sort.c
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@ -39,5 +39,11 @@ static int __init test_sort_init(void)
return err; return err;
} }
static void __exit test_sort_exit(void)
{
}
module_init(test_sort_init); module_init(test_sort_init);
module_exit(test_sort_exit);
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");