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authorIngo Molnar <mingo@elte.hu>2010-07-01 08:49:28 +0200
committerIngo Molnar <mingo@elte.hu>2010-07-01 09:31:25 +0200
commit0a54cec0c25cc49e3b68b14c205f1f6cff13f5e1 (patch)
treeeb4e63ee9ae1fcaf9aa53a1668e55c09516052d9 /drivers/acpi/acpica/exsystem.c
parentec8c27e04f89a7575ca2c4facb99152e03d6a99c (diff)
parent980019d74e4b2428362b36a0506519d6d9460800 (diff)
Merge branch 'linus' into core/rcu
Conflicts: fs/fs-writeback.c Merge reason: Resolve the conflict Note, i picked the version from Linus's tree, which effectively reverts the fs-writeback.c bits of: b97181f: fs: remove all rcu head initializations, except on_stack initializations As the upstream changes to this file changed this code heavily and the first attempt to resolve the conflict resulted in a non-booting kernel. It's safer to re-try this portion of the commit cleanly. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/acpi/acpica/exsystem.c')
-rw-r--r--drivers/acpi/acpica/exsystem.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/exsystem.c b/drivers/acpi/acpica/exsystem.c
index 6d32e09327f1..675aaa91a770 100644
--- a/drivers/acpi/acpica/exsystem.c
+++ b/drivers/acpi/acpica/exsystem.c
@@ -201,6 +201,14 @@ acpi_status acpi_ex_system_do_sleep(u64 how_long)
acpi_ex_relinquish_interpreter();
+ /*
+ * For compatibility with other ACPI implementations and to prevent
+ * accidental deep sleeps, limit the sleep time to something reasonable.
+ */
+ if (how_long > ACPI_MAX_SLEEP) {
+ how_long = ACPI_MAX_SLEEP;
+ }
+
acpi_os_sleep(how_long);
/* And now we must get the interpreter again */