xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

afs: Calculate lock extend timer from set/extend reply reception

Browse Source 
Record the timestamp on the first reply DATA packet received in response to
a set- or extend-lock operation, then use this to calculate the time
remaining till the lock expires rather than using whatever time the
requesting process wakes up and finishes processing the operation as a
base.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2019-04-25 14:26:50 +01:00
parent 0b9bf3812a
commit a690f60a2b
4 changed files with 38 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
fs/afs/internal.h
View File

@@ -638,6 +638,7 @@ struct afs_vnode {
struct list_head granted_locks; /* locks granted on this file */
struct delayed_work lock_work; /* work to be done in locking */
struct key *lock_key; /* Key to be used in lock ops */
ktime_t locked_at; /* Time at which lock obtained */
enum afs_lock_state lock_state : 8;
afs_lock_type_t lock_type : 8;
@@ -905,6 +906,7 @@ extern void afs_put_read(struct afs_read *);
*/
extern struct workqueue_struct *afs_lock_manager;
extern void afs_lock_op_done(struct afs_call *);
extern void afs_lock_work(struct work_struct *);
extern void afs_lock_may_be_available(struct afs_vnode *);
extern int afs_lock(struct file *, int, struct file_lock *);