From: Waiman Long <longman@redhat.com>
To: Alexander Viro <viro@zeniv.linux.org.uk>,
Jan Kara <jack@suse.com>, Jeff Layton <jlayton@poochiereds.net>,
"J. Bruce Fields" <bfields@fieldses.org>,
Tejun Heo <tj@kernel.org>,
Christoph Lameter <cl@linux-foundation.org>
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Andi Kleen <andi@firstfloor.org>,
Dave Chinner <dchinner@redhat.com>,
Boqun Feng <boqun.feng@gmail.com>,
Davidlohr Bueso <dave@stgolabs.net>,
Waiman Long <longman@redhat.com>
Subject: [PATCH v7 8/9] lib/dlock-list: Export symbols and add warnings
Date: Tue, 17 Oct 2017 15:36:35 -0400 [thread overview]
Message-ID: <1508268996-8959-1-git-send-email-longman@redhat.com> (raw)
In-Reply-To: <1507229008-20569-1-git-send-email-longman@redhat.com>
The EXPORT_SYMBOL() macro is now used in lib/dlock-list.c to enable
kernel modules to use dlock-list. Some warning messages are also added.
Signed-off-by: Waiman Long <longman@redhat.com>
---
lib/dlock-list.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/lib/dlock-list.c b/lib/dlock-list.c
index 4fded20..6ce5c7193 100644
--- a/lib/dlock-list.c
+++ b/lib/dlock-list.c
@@ -132,6 +132,7 @@ int alloc_dlock_list_heads(struct dlock_list_heads *dlist, int irqsafe)
}
return 0;
}
+EXPORT_SYMBOL(alloc_dlock_list_heads);
/**
* free_dlock_list_heads - Free all the heads entries of the dlock list
@@ -145,6 +146,7 @@ void free_dlock_list_heads(struct dlock_list_heads *dlist)
kfree(dlist->heads);
dlist->heads = NULL;
}
+EXPORT_SYMBOL(free_dlock_list_heads);
/**
* dlock_lists_empty - Check if all the dlock lists are empty
@@ -159,11 +161,15 @@ bool dlock_lists_empty(struct dlock_list_heads *dlist)
{
int idx;
+ /* Shouldn't be called before nr_dlock_lists is initialized */
+ WARN_ON_ONCE(!nr_dlock_lists);
+
for (idx = 0; idx < nr_dlock_lists; idx++)
if (!list_empty(&dlist->heads[idx].list))
return false;
return true;
}
+EXPORT_SYMBOL(dlock_lists_empty);
/**
* dlock_list_hash - Hash the given context to a particular list
@@ -187,6 +193,7 @@ struct dlock_list_head *dlock_list_hash(struct dlock_list_heads *dlist,
% nr_dlock_lists;
return &dlist->heads[hash];
}
+EXPORT_SYMBOL(dlock_list_hash);
/**
* dlock_list_add - Add a node to a particular head of dlock list
@@ -210,6 +217,7 @@ void dlock_list_add(struct dlock_list_node *node,
spin_unlock(&head->lock);
}
}
+EXPORT_SYMBOL(dlock_list_add);
/**
* dlock_lists_add - Adds a node to the given dlock list
@@ -226,6 +234,7 @@ void dlock_lists_add(struct dlock_list_node *node,
dlock_list_add(node, head);
}
+EXPORT_SYMBOL(dlock_lists_add);
/**
* dlock_lists_del - Delete a node from a dlock list
@@ -273,6 +282,7 @@ void dlock_lists_del(struct dlock_list_node *node)
spin_unlock(&head->lock);
} while (retry);
}
+EXPORT_SYMBOL(dlock_lists_del);
/**
* __dlock_list_next_list: Find the first entry of the next available list
@@ -287,6 +297,9 @@ struct dlock_list_node *__dlock_list_next_list(struct dlock_list_iter *iter)
struct dlock_list_node *next;
struct dlock_list_head *head;
+ /* Shouldn't be called before nr_dlock_lists is initialized */
+ WARN_ON_ONCE(!nr_dlock_lists);
+
restart:
if (iter->entry) {
dlock_list_unlock(iter);
@@ -320,3 +333,4 @@ struct dlock_list_node *__dlock_list_next_list(struct dlock_list_iter *iter)
return next;
}
+EXPORT_SYMBOL(__dlock_list_next_list);
--
1.8.3.1
next prev parent reply other threads:[~2017-10-17 19:37 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-05 18:43 [PATCH v7 0/6] vfs: Use dlock list for SB's s_inodes list Waiman Long
2017-10-05 18:43 ` [PATCH v7 1/6] lib/dlock-list: Distributed and lock-protected lists Waiman Long
2017-10-10 5:35 ` Boqun Feng
2017-10-13 21:10 ` Waiman Long
2017-10-18 8:55 ` Boqun Feng
2017-10-05 18:43 ` [PATCH v7 2/6] vfs: Remove unnecessary list_for_each_entry_safe() variants Waiman Long
2017-10-05 18:43 ` [PATCH v7 3/6] vfs: Use dlock list for superblock's inode list Waiman Long
2017-10-05 18:43 ` [PATCH v7 4/6] lib/dlock-list: Make sibling CPUs share the same linked list Waiman Long
2017-10-09 15:40 ` Jan Kara
2017-10-09 16:14 ` Waiman Long
2017-10-05 18:43 ` [PATCH v7 5/6] lib/dlock-list: Enable faster lookup with hashing Waiman Long
2017-10-09 13:08 ` Davidlohr Bueso
2017-10-09 14:16 ` Waiman Long
2017-10-09 16:03 ` Davidlohr Bueso
2017-10-09 16:11 ` Waiman Long
2017-10-05 18:43 ` [PATCH v7 6/6] lib/dlock-list: Add an IRQ-safe mode to be used in interrupt handler Waiman Long
2017-10-13 15:45 ` [PATCH v7 7/6] fs/epoll: scale nested callbacks Davidlohr Bueso
2017-10-16 19:30 ` Jason Baron
2017-10-17 15:53 ` Davidlohr Bueso
2017-10-18 14:06 ` Jason Baron
2017-10-18 15:44 ` Davidlohr Bueso
2017-10-17 19:36 ` Waiman Long [this message]
2017-10-17 19:36 ` [PATCH v7 9/9] lib/dlock-list: Unique lock class key for each allocation call site Waiman Long
2017-10-26 18:28 ` [PATCH v7 0/6] vfs: Use dlock list for SB's s_inodes list Waiman Long
2017-10-27 0:58 ` Boqun Feng
2017-10-27 20:19 ` Waiman Long
2017-10-27 20:10 ` [PATCH v7 10/10] lib/dlock-list: Fix use-after-unlock problem in dlist_for_each_entry_safe() Waiman Long
2017-10-30 9:06 ` Jan Kara
2017-10-30 14:06 ` Boqun Feng
2017-10-30 14:11 ` Davidlohr Bueso
2017-10-30 14:15 ` Waiman Long
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1508268996-8959-1-git-send-email-longman@redhat.com \
--to=longman@redhat.com \
--cc=andi@firstfloor.org \
--cc=bfields@fieldses.org \
--cc=boqun.feng@gmail.com \
--cc=cl@linux-foundation.org \
--cc=dave@stgolabs.net \
--cc=dchinner@redhat.com \
--cc=jack@suse.com \
--cc=jlayton@poochiereds.net \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=tj@kernel.org \
--cc=viro@zeniv.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).