From: David Howells <dhowells@redhat.com>
To: Trond Myklebust <trondmy@hammerspace.com>,
Anna Schumaker <anna.schumaker@netapp.com>,
Steve French <sfrench@samba.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Matthew Wilcox <willy@infradead.org>
Cc: Jeff Layton <jlayton@redhat.com>,
Dave Wysochanski <dwysocha@redhat.com>,
dhowells@redhat.com, linux-cachefs@redhat.com,
linux-afs@lists.infradead.org, linux-nfs@vger.kernel.org,
linux-cifs@vger.kernel.org, ceph-devel@vger.kernel.org,
v9fs-developer@lists.sourceforge.net,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 16/32] cachefiles: Split cachefiles_drop_object() up a bit
Date: Mon, 13 Jul 2020 17:33:38 +0100 [thread overview]
Message-ID: <159465801837.1376674.800536726710094793.stgit@warthog.procyon.org.uk> (raw)
In-Reply-To: <159465784033.1376674.18106463693989811037.stgit@warthog.procyon.org.uk>
Split cachefiles_drop_object() up a bit to make it easier to modify later.
Signed-off-by: David Howells <dhowells@redhat.com>
---
fs/cachefiles/interface.c | 58 ++++++++++++++++++++++++++++++---------------
1 file changed, 39 insertions(+), 19 deletions(-)
diff --git a/fs/cachefiles/interface.c b/fs/cachefiles/interface.c
index e4d1a82b9f33..56ed6f203e1c 100644
--- a/fs/cachefiles/interface.c
+++ b/fs/cachefiles/interface.c
@@ -192,6 +192,42 @@ static void cachefiles_update_object(struct fscache_object *_object)
_leave("");
}
+/*
+ * Commit changes to the object as we drop it.
+ */
+static void cachefiles_commit_object(struct cachefiles_object *object,
+ struct cachefiles_cache *cache)
+{
+}
+
+/*
+ * Finalise and object and close the VFS structs that we have.
+ */
+static void cachefiles_clean_up_object(struct cachefiles_object *object,
+ struct cachefiles_cache *cache,
+ bool invalidate)
+{
+ if (invalidate && &object->fscache != cache->cache.fsdef) {
+ _debug("- inval object OBJ%x", object->fscache.debug_id);
+ cachefiles_delete_object(cache, object);
+ } else {
+ cachefiles_commit_object(object, cache);
+ }
+
+ /* close the filesystem stuff attached to the object */
+ if (object->backing_file)
+ fput(object->backing_file);
+ object->backing_file = NULL;
+
+ if (object->backer != object->dentry)
+ dput(object->backer);
+ object->backer = NULL;
+
+ cachefiles_unmark_inode_in_use(object, object->dentry);
+ dput(object->dentry);
+ object->dentry = NULL;
+}
+
/*
* discard the resources pinned by an object and effect retirement if
* requested
@@ -223,25 +259,9 @@ static void cachefiles_drop_object(struct fscache_object *_object,
* before we set it up.
*/
if (object->dentry) {
- if (invalidate && _object != cache->cache.fsdef) {
- _debug("- inval object OBJ%x", object->fscache.debug_id);
- cachefiles_begin_secure(cache, &saved_cred);
- cachefiles_delete_object(cache, object);
- cachefiles_end_secure(cache, saved_cred);
- }
-
- /* close the filesystem stuff attached to the object */
- if (object->backing_file)
- fput(object->backing_file);
- object->backing_file = NULL;
-
- if (object->backer != object->dentry)
- dput(object->backer);
- object->backer = NULL;
-
- cachefiles_unmark_inode_in_use(object, object->dentry);
- dput(object->dentry);
- object->dentry = NULL;
+ cachefiles_begin_secure(cache, &saved_cred);
+ cachefiles_clean_up_object(object, cache, invalidate);
+ cachefiles_end_secure(cache, saved_cred);
}
_leave("");
next prev parent reply other threads:[~2020-07-13 16:33 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-13 16:30 [PATCH 00/32] fscache: Rewrite 2: Make the I/O interface use kiocb/iov_iter David Howells
2020-07-13 16:30 ` [PATCH 01/32] iov_iter: Add ITER_MAPPING David Howells
2020-07-19 1:44 ` Al Viro
2020-07-19 9:51 ` David Howells
2020-07-13 16:31 ` [PATCH 02/32] vm: Add wait/unlock functions for PG_fscache David Howells
2020-07-13 16:31 ` [PATCH 03/32] vfs: Export rw_verify_area() for use by cachefiles David Howells
2020-07-13 16:31 ` [PATCH 04/32] vfs: Provide S_CACHE_FILE inode flag David Howells
2020-07-13 16:31 ` [PATCH 05/32] mm: Provide lru_to_last_page() to get last of a page list David Howells
2020-07-13 16:31 ` [PATCH 06/32] cachefiles: Remove tree of active files and use S_CACHE_FILE inode flag David Howells
2020-07-13 16:31 ` [PATCH 07/32] fscache: Provide a simple thread pool for running ops asynchronously David Howells
2020-07-13 16:32 ` [PATCH 09/32] fscache: Rewrite the I/O API based on iov_iter David Howells
2020-07-13 16:32 ` [PATCH 10/32] fscache: Remove fscache_wait_on_invalidate() David Howells
2020-07-13 16:32 ` [PATCH 11/32] fscache: Keep track of size of a file last set independently on the server David Howells
2020-07-13 16:32 ` [PATCH 12/32] fscache, cachefiles: Fix disabled histogram warnings David Howells
2020-07-13 16:33 ` [PATCH 13/32] fscache: Recast assertion in terms of cookie not being an index David Howells
2020-07-13 16:33 ` [PATCH 14/32] cachefiles: Remove some redundant checks on unsigned values David Howells
2020-07-13 16:33 ` [PATCH 15/32] cachefiles: trace: Log coherency checks David Howells
2020-07-13 16:33 ` David Howells [this message]
2020-07-13 16:33 ` [PATCH 17/32] cachefiles: Implement new fscache I/O backend API David Howells
2020-07-13 16:33 ` [PATCH 18/32] cachefiles: Merge object->backer into object->dentry David Howells
2020-07-13 16:34 ` [PATCH 19/32] cachefiles: Implement a content-present indicator and bitmap David Howells
2020-07-13 16:34 ` [PATCH 20/32] cachefiles: Implement extent shaper David Howells
2020-07-13 16:34 ` [PATCH 21/32] cachefiles: Round the cachefile size up to DIO block size David Howells
2020-07-13 16:34 ` [PATCH 22/32] cachefiles: Implement read and write parts of new I/O API David Howells
2020-07-13 16:34 ` [PATCH 23/32] cachefiles: Add I/O tracepoints David Howells
2020-07-13 16:35 ` [PATCH 24/32] fscache: Add read helper David Howells
2020-07-13 16:35 ` [PATCH 25/32] fscache: Display cache-specific data in /proc/fs/fscache/objects David Howells
2020-07-13 16:35 ` [PATCH 26/32] fscache: Remove more obsolete stats David Howells
2020-07-13 16:35 ` [PATCH 27/32] fscache: New stats David Howells
2020-07-13 16:35 ` [PATCH 28/32] fscache, cachefiles: Rewrite invalidation David Howells
2020-07-13 16:36 ` [PATCH 29/32] fscache: Implement "will_modify" parameter on fscache_use_cookie() David Howells
2020-07-13 16:36 ` [PATCH 30/32] fscache: Provide resize operation David Howells
2020-07-13 16:36 ` [PATCH 31/32] fscache: Remove the update operation David Howells
2020-07-13 16:36 ` [PATCH 32/32] cachefiles: Shape write requests David Howells
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