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Revert "epoll: use freezable blocking call"

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This reverts commit 1c441e9212 (epoll: use freezable blocking call)
which is reported to cause user space memory corruption to happen
after suspend to RAM.

Since it appears to be extremely difficult to root cause this
problem, it is best to revert the offending commit and try to address
the original issue in a better way later.

References: https://bugzilla.kernel.org/show_bug.cgi?id=61781
Reported-by: Natrio <[email protected]>
Reported-by: Jeff Pohlmeyer <[email protected]>
Bisected-by: Leo Wolf <[email protected]>
Fixes: 1c441e9212 (epoll: use freezable blocking call)
Signed-off-by: Rafael J. Wysocki <[email protected]>
Cc: 3.11+ <[email protected]> # 3.11+
This commit is contained in:
Rafael J. Wysocki 2013-10-29 13:12:56 +01:00
commit c511851de1
1 changed files with 1 additions and 3 deletions
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4
fs/eventpoll.c
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@ -34,7 +34,6 @@
#include <linux/mutex.h>
#include <linux/anon_inodes.h>
#include <linux/device.h>
#include <linux/freezer.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/mman.h>
@ -1605,8 +1604,7 @@ fetch_events:
}
spin_unlock_irqrestore(&ep->lock, flags);
if (!freezable_schedule_hrtimeout_range(to, slack,
HRTIMER_MODE_ABS))
if (!schedule_hrtimeout_range(to, slack, HRTIMER_MODE_ABS))
timed_out = 1;
spin_lock_irqsave(&ep->lock, flags);