diff options
| author | Todd Poynor <toddpoynor@google.com> | 2011-08-24 15:01:30 -0700 |
|---|---|---|
| committer | Arve Hjønnevåg <arve@android.com> | 2013-07-01 13:40:37 -0700 |
| commit | e584105db8de7ff57c8a4d6c8e2d2efa4827b7bb (patch) | |
| tree | cf9ba063b2c6fc725c13ece8ed4485ac252aa82f /fs/fuse | |
| parent | 5ace4e83a710f7b5f747898f8caa5198334ae3c8 (diff) | |
fuse: Freeze client on suspend when request sent to userspace
Suspend attempts can abort when the FUSE daemon is already frozen
and a client is waiting uninterruptibly for a response, causing
freezing of tasks to fail.
Use the freeze-friendly wait API, but disregard other signals.
Change-Id: Icefb7e4bbc718ccb76bf3c04daaa5eeea7e0e63c
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Diffstat (limited to 'fs/fuse')
| -rw-r--r-- | fs/fuse/dev.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index 1d55f9465400..0e16fc1cfcd3 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -20,6 +20,7 @@ #include <linux/swap.h> #include <linux/splice.h> #include <linux/aio.h> +#include <linux/freezer.h> MODULE_ALIAS_MISCDEV(FUSE_MINOR); MODULE_ALIAS("devname:fuse"); @@ -464,7 +465,10 @@ __acquires(fc->lock) * Wait it out. */ spin_unlock(&fc->lock); - wait_event(req->waitq, req->state == FUSE_REQ_FINISHED); + + while (req->state != FUSE_REQ_FINISHED) + wait_event_freezable(req->waitq, + req->state == FUSE_REQ_FINISHED); spin_lock(&fc->lock); if (!req->aborted) |