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authorJeff Dike <jdike@addtoit.com>2006-09-29 01:58:50 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-29 09:18:04 -0700
commit730760e90a173ef81f89beed2f1dad2fab310f68 (patch)
treee60039deb19683fac30e58277450c657ecd33e07 /arch/um/drivers/stdio_console.c
parentb10aeeef554eb1ff80e10111829f6e7484877811 (diff)
downloadblackbird-op-linux-730760e90a173ef81f89beed2f1dad2fab310f68.tar.gz
blackbird-op-linux-730760e90a173ef81f89beed2f1dad2fab310f68.zip
[PATCH] uml: locking documentation
Some locking documentation and a cleanup. uml_exitcode is copied into a local before sprintf sees it, in case sprintf does anything non-atomic with it. The rest are comments about why certain globals don't need any kind of locking. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/um/drivers/stdio_console.c')
-rw-r--r--arch/um/drivers/stdio_console.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c
index 5e44adb07051..e4bfcfe8550b 100644
--- a/arch/um/drivers/stdio_console.c
+++ b/arch/um/drivers/stdio_console.c
@@ -108,6 +108,7 @@ static int con_open(struct tty_struct *tty, struct file *filp)
return line_open(vts, tty);
}
+/* Set in an initcall, checked in an exitcall */
static int con_init_done = 0;
static const struct tty_operations console_ops = {
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