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>,
Latchesar Ionkov <lucho@ionkov.net>,
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David Howells <dhowells@redhat.com>,
Marc Dionne <marc.dionne@auristor.com>,
Xiubo Li <xiubli@redhat.com>, Ilya Dryomov <idryomov@gmail.com>,
Alexander Aring <aahringo@redhat.com>,
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Anna Schumaker <anna@kernel.org>,
Chuck Lever <chuck.lever@oracle.com>, Neil Brown <neilb@suse.de>,
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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,
linux-nfs@vger.kernel.org, ocfs2-devel@lists.linux.dev,
linux-cifs@vger.kernel.org, samba-technical@lists.samba.org,
linux-trace-kernel@vger.kernel.org,
Jeff Layton <jlayton@kernel.org>
Subject: [PATCH 12/20] filelock: make __locks_delete_block and __locks_wake_up_blocks take file_lock_core
Date: Tue, 16 Jan 2024 14:46:08 -0500 [thread overview]
Message-ID: <20240116-flsplit-v1-12-c9d0f4370a5d@kernel.org> (raw)
In-Reply-To: <20240116-flsplit-v1-0-c9d0f4370a5d@kernel.org>
Convert __locks_delete_block and __locks_wake_up_blocks to take a struct
file_lock_core pointer. Note that to accomodate this, we need to add a
new file_lock() wrapper to go from file_lock_core to file_lock.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
fs/locks.c | 43 ++++++++++++++++++++++++++-----------------
1 file changed, 26 insertions(+), 17 deletions(-)
diff --git a/fs/locks.c b/fs/locks.c
index eddf4d767d5d..6b8e8820dec9 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -92,6 +92,11 @@ static inline bool IS_LEASE(struct file_lock_core *flc)
#define IS_REMOTELCK(fl) (fl->fl_core.fl_pid <= 0)
+struct file_lock *file_lock(struct file_lock_core *flc)
+{
+ return container_of(flc, struct file_lock, fl_core);
+}
+
static bool lease_breaking(struct file_lock *fl)
{
return fl->fl_core.fl_flags & (FL_UNLOCK_PENDING | FL_DOWNGRADE_PENDING);
@@ -677,31 +682,35 @@ static void locks_delete_global_blocked(struct file_lock_core *waiter)
*
* Must be called with blocked_lock_lock held.
*/
-static void __locks_delete_block(struct file_lock *waiter)
+static void __locks_delete_block(struct file_lock_core *waiter)
{
- locks_delete_global_blocked(&waiter->fl_core);
- list_del_init(&waiter->fl_core.fl_blocked_member);
+ locks_delete_global_blocked(waiter);
+ list_del_init(&waiter->fl_blocked_member);
}
-static void __locks_wake_up_blocks(struct file_lock *blocker)
+static void __locks_wake_up_blocks(struct file_lock_core *blocker)
{
- while (!list_empty(&blocker->fl_core.fl_blocked_requests)) {
- struct file_lock *waiter;
+ while (!list_empty(&blocker->fl_blocked_requests)) {
+ struct file_lock_core *waiter;
+ struct file_lock *fl;
+
+ waiter = list_first_entry(&blocker->fl_blocked_requests,
+ struct file_lock_core, fl_blocked_member);
- waiter = list_first_entry(&blocker->fl_core.fl_blocked_requests,
- struct file_lock, fl_core.fl_blocked_member);
+ fl = file_lock(waiter);
__locks_delete_block(waiter);
- if (waiter->fl_lmops && waiter->fl_lmops->lm_notify)
- waiter->fl_lmops->lm_notify(waiter);
+ if ((IS_POSIX(waiter) || IS_FLOCK(waiter)) &&
+ fl->fl_lmops && fl->fl_lmops->lm_notify)
+ fl->fl_lmops->lm_notify(fl);
else
- wake_up(&waiter->fl_core.fl_wait);
+ wake_up(&waiter->fl_wait);
/*
* The setting of fl_blocker to NULL marks the "done"
* point in deleting a block. Paired with acquire at the top
* of locks_delete_block().
*/
- smp_store_release(&waiter->fl_core.fl_blocker, NULL);
+ smp_store_release(&waiter->fl_blocker, NULL);
}
}
@@ -743,8 +752,8 @@ int locks_delete_block(struct file_lock *waiter)
spin_lock(&blocked_lock_lock);
if (waiter->fl_core.fl_blocker)
status = 0;
- __locks_wake_up_blocks(waiter);
- __locks_delete_block(waiter);
+ __locks_wake_up_blocks(&waiter->fl_core);
+ __locks_delete_block(&waiter->fl_core);
/*
* The setting of fl_blocker to NULL marks the "done" point in deleting
@@ -799,7 +808,7 @@ static void __locks_insert_block(struct file_lock *blocker,
* waiter, but might not conflict with blocker, or the requests
* and lock which block it. So they all need to be woken.
*/
- __locks_wake_up_blocks(waiter);
+ __locks_wake_up_blocks(&waiter->fl_core);
}
/* Must be called with flc_lock held. */
@@ -831,7 +840,7 @@ static void locks_wake_up_blocks(struct file_lock *blocker)
return;
spin_lock(&blocked_lock_lock);
- __locks_wake_up_blocks(blocker);
+ __locks_wake_up_blocks(&blocker->fl_core);
spin_unlock(&blocked_lock_lock);
}
@@ -1186,7 +1195,7 @@ static int posix_lock_inode(struct inode *inode, struct file_lock *request,
* Ensure that we don't find any locks blocked on this
* request during deadlock detection.
*/
- __locks_wake_up_blocks(request);
+ __locks_wake_up_blocks(&request->fl_core);
if (likely(!posix_locks_deadlock(request, fl))) {
error = FILE_LOCK_DEFERRED;
__locks_insert_block(fl, request,
--
2.43.0
next prev parent reply other threads:[~2024-01-16 19:47 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-16 19:45 [PATCH 00/20] filelock: split struct file_lock into file_lock and file_lease structs Jeff Layton
2024-01-16 19:45 ` [PATCH 01/20] filelock: split common fields into struct file_lock_core Jeff Layton
2024-01-16 22:07 ` NeilBrown
2024-01-17 12:46 ` Jeff Layton
2024-01-16 19:45 ` [PATCH 02/20] filelock: add coccinelle scripts to move fields to " Jeff Layton
2024-01-16 19:45 ` [PATCH 03/20] filelock: the results of the coccinelle conversion Jeff Layton
2024-01-17 15:10 ` Chuck Lever
2024-01-16 19:46 ` [PATCH 04/20] filelock: fixups after the coccinelle changes Jeff Layton
2024-01-17 15:13 ` Chuck Lever
2024-01-16 19:46 ` [PATCH 05/20] filelock: convert some internal functions to use file_lock_core instead Jeff Layton
2024-01-16 19:46 ` [PATCH 06/20] filelock: convert more internal functions to use file_lock_core Jeff Layton
2024-01-16 19:46 ` [PATCH 07/20] filelock: make posix_same_owner take file_lock_core pointers Jeff Layton
2024-01-16 19:46 ` [PATCH 08/20] filelock: convert posix_owner_key to take file_lock_core arg Jeff Layton
2024-01-16 19:46 ` [PATCH 09/20] filelock: make locks_{insert,delete}_global_locks " Jeff Layton
2024-01-16 19:46 ` [PATCH 10/20] filelock: convert locks_{insert,delete}_global_blocked Jeff Layton
2024-01-16 19:46 ` [PATCH 11/20] filelock: convert the IS_* macros to take file_lock_core Jeff Layton
2024-01-16 22:16 ` NeilBrown
2024-01-17 12:32 ` Jeff Layton
2024-01-16 19:46 ` Jeff Layton [this message]
2024-01-16 22:23 ` [PATCH 12/20] filelock: make __locks_delete_block and __locks_wake_up_blocks " NeilBrown
2024-01-17 12:40 ` Jeff Layton
2024-01-16 19:46 ` [PATCH 13/20] filelock: convert __locks_insert_block, conflict and deadlock checks to use file_lock_core Jeff Layton
2024-01-16 22:32 ` NeilBrown
2024-01-17 12:42 ` Jeff Layton
2024-01-16 19:46 ` [PATCH 14/20] filelock: convert fl_blocker to file_lock_core Jeff Layton
2024-01-16 19:46 ` [PATCH 15/20] filelock: clean up locks_delete_block internals Jeff Layton
2024-01-16 19:46 ` [PATCH 16/20] filelock: reorganize locks_delete_block and __locks_insert_block Jeff Layton
2024-01-16 19:46 ` [PATCH 17/20] filelock: make assign_type helper take a file_lock_core pointer Jeff Layton
2024-01-16 19:46 ` [PATCH 18/20] filelock: convert locks_wake_up_blocks to " Jeff Layton
2024-01-16 19:46 ` [PATCH 19/20] filelock: convert locks_insert_lock_ctx and locks_delete_lock_ctx Jeff Layton
2024-01-16 19:46 ` [PATCH 20/20] filelock: split leases out of struct file_lock Jeff Layton
2024-01-16 22:44 ` NeilBrown
2024-01-17 12:45 ` Jeff Layton
2024-01-17 12:48 ` [PATCH 00/20] filelock: split struct file_lock into file_lock and file_lease structs Christian Brauner
2024-01-17 12:59 ` Jeff Layton
2024-01-17 13:25 ` [PATCH 02/20] filelock: add coccinelle scripts to move fields to struct file_lock_core David Howells
2024-01-17 13:40 ` Jeff Layton
2024-01-17 15:12 ` [PATCH 00/20] filelock: split struct file_lock into file_lock and file_lease structs Chuck Lever
2024-01-17 17:32 ` Jeff Layton
2024-01-17 18:59 ` NeilBrown
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