[PATCH 07/20] filelock: make posix_same_owner take file_lock_core pointers

From: Jeff Layton <jlayton@kernel.org>
To: Christian Brauner <brauner@kernel.org>,
	 Alexander Viro <viro@zeniv.linux.org.uk>,
	 Eric Van Hensbergen <ericvh@kernel.org>,
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Cc: linux-kernel@vger.kernel.org, v9fs@lists.linux.dev,
	 linux-afs@lists.infradead.org, ceph-devel@vger.kernel.org,
	 gfs2@lists.linux.dev, linux-fsdevel@vger.kernel.org,
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	 linux-cifs@vger.kernel.org, samba-technical@lists.samba.org,
	 linux-trace-kernel@vger.kernel.org,
	Jeff Layton <jlayton@kernel.org>
Subject: [PATCH 07/20] filelock: make posix_same_owner take file_lock_core pointers
Date: Tue, 16 Jan 2024 14:46:03 -0500	[thread overview]
Message-ID: <20240116-flsplit-v1-7-c9d0f4370a5d@kernel.org> (raw)
In-Reply-To: <20240116-flsplit-v1-0-c9d0f4370a5d@kernel.org>

Change posix_same_owner to take struct file_lock_core pointers, and
convert the callers to pass those in.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 fs/locks.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/fs/locks.c b/fs/locks.c
index e09920cc9da2..0c47497eb1a4 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -597,9 +597,9 @@ static inline int locks_overlap(struct file_lock *fl1, struct file_lock *fl2)
 /*
  * Check whether two locks have the same owner.
  */
-static int posix_same_owner(struct file_lock *fl1, struct file_lock *fl2)
+static int posix_same_owner(struct file_lock_core *fl1, struct file_lock_core *fl2)
 {
-	return fl1->fl_core.fl_owner == fl2->fl_core.fl_owner;
+	return fl1->fl_owner == fl2->fl_owner;
 }
 
 /* Must be called with the flc_lock held! */
@@ -864,7 +864,7 @@ static bool posix_locks_conflict(struct file_lock *caller_fl,
 	/* POSIX locks owned by the same process do not conflict with
 	 * each other.
 	 */
-	if (posix_same_owner(caller_fl, sys_fl))
+	if (posix_same_owner(&caller_fl->fl_core, &sys_fl->fl_core))
 		return false;
 
 	/* Check whether they overlap */
@@ -882,7 +882,7 @@ static bool posix_test_locks_conflict(struct file_lock *caller_fl,
 {
 	/* F_UNLCK checks any locks on the same fd. */
 	if (caller_fl->fl_core.fl_type == F_UNLCK) {
-		if (!posix_same_owner(caller_fl, sys_fl))
+		if (!posix_same_owner(&caller_fl->fl_core, &sys_fl->fl_core))
 			return false;
 		return locks_overlap(caller_fl, sys_fl);
 	}
@@ -985,7 +985,7 @@ static struct file_lock *what_owner_is_waiting_for(struct file_lock *block_fl)
 	struct file_lock *fl;
 
 	hash_for_each_possible(blocked_hash, fl, fl_core.fl_link, posix_owner_key(block_fl)) {
-		if (posix_same_owner(fl, block_fl)) {
+		if (posix_same_owner(&fl->fl_core, &block_fl->fl_core)) {
 			while (fl->fl_core.fl_blocker)
 				fl = fl->fl_core.fl_blocker;
 			return fl;
@@ -1012,7 +1012,7 @@ static int posix_locks_deadlock(struct file_lock *caller_fl,
 	while ((block_fl = what_owner_is_waiting_for(block_fl))) {
 		if (i++ > MAX_DEADLK_ITERATIONS)
 			return 0;
-		if (posix_same_owner(caller_fl, block_fl))
+		if (posix_same_owner(&caller_fl->fl_core, &block_fl->fl_core))
 			return 1;
 	}
 	return 0;
@@ -1185,13 +1185,13 @@ static int posix_lock_inode(struct inode *inode, struct file_lock *request,
 
 	/* Find the first old lock with the same owner as the new lock */
 	list_for_each_entry(fl, &ctx->flc_posix, fl_core.fl_list) {
-		if (posix_same_owner(request, fl))
+		if (posix_same_owner(&request->fl_core, &fl->fl_core))
 			break;
 	}
 
 	/* Process locks with this owner. */
 	list_for_each_entry_safe_from(fl, tmp, &ctx->flc_posix, fl_core.fl_list) {
-		if (!posix_same_owner(request, fl))
+		if (!posix_same_owner(&request->fl_core, &fl->fl_core))
 			break;
 
 		/* Detect adjacent or overlapping regions (if same lock type) */

-- 
2.43.0

