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>
This commit is contained in:
parent
8f832d4ac1
commit
d111876c7e
1 changed files with 4 additions and 1 deletions
|
@ -19,6 +19,7 @@
|
|||
#include <linux/pipe_fs_i.h>
|
||||
#include <linux/swap.h>
|
||||
#include <linux/splice.h>
|
||||
#include <linux/freezer.h>
|
||||
|
||||
MODULE_ALIAS_MISCDEV(FUSE_MINOR);
|
||||
MODULE_ALIAS("devname:fuse");
|
||||
|
@ -473,7 +474,9 @@ static void request_wait_answer(struct fuse_conn *fc, struct fuse_req *req)
|
|||
* Either request is already in userspace, or it was forced.
|
||||
* Wait it out.
|
||||
*/
|
||||
wait_event(req->waitq, test_bit(FR_FINISHED, &req->flags));
|
||||
while (!test_bit(FR_FINISHED, &req->flags))
|
||||
wait_event_freezable(req->waitq,
|
||||
test_bit(FR_FINISHED, &req->flags));
|
||||
}
|
||||
|
||||
static void __fuse_request_send(struct fuse_conn *fc, struct fuse_req *req)
|
||||
|
|
Loading…
Add table
Reference in a new issue