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

fs/locks: rename some lists and pointers.

Browse Source 
struct file lock contains an 'fl_next' pointer which
is used to point to the lock that this request is blocked
waiting for.  So rename it to fl_blocker.

The fl_blocked list_head in an active lock is the head of a list of
blocked requests.  In a request it is a node in that list.
These are two distinct uses, so replace with two list_heads
with different names.
fl_blocked_requests is the head of a list of blocked requests
fl_blocked_member is a node in a member of that list.

The two different list_heads are never used at the same time, but that
will change in a future patch.

Note that a tracepoint is changed to report fl_blocker instead
of fl_next.

Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
This commit is contained in:
NeilBrown
2018-11-30 10:04:08 +11:00
committed by Jeff Layton
parent ccda4af0f4
commit ada5c1da86
4 changed files with 47 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
fs/cifs/file.c
View File

@@ -1103,7 +1103,7 @@ try_again:
rc = posix_lock_file(file, flock, NULL);
up_write(&cinode->lock_sem);
if (rc == FILE_LOCK_DEFERRED) {
rc = wait_event_interruptible(flock->fl_wait, !flock->fl_next);
rc = wait_event_interruptible(flock->fl_wait, !flock->fl_blocker);
if (!rc)
goto try_again;
posix_unblock_lock(flock);