From: Tejun Heo <tj@kernel•org>
To: Jens Axboe <axboe@kernel•dk>
Cc: Theodore Ts'o <tytso@mit•edu>,
linux-next@vger•kernel.org, linux-kernel@vger•kernel.org,
Stephen Rothwell <sfr@canb•auug.org.au>, Chris Mason <clm@fb•com>,
kernel-team@fb•com
Subject: [PATCH block/for-linus] block: export bio_associate_*() and wbc_account_io()
Date: Thu, 23 Jul 2015 14:27:09 -0400 [thread overview]
Message-ID: <20150723182709.GQ15934@mtj.duckdns.org> (raw)
In-Reply-To: <20150723105623.2f8c9548@canb.auug.org.au>
bio_associate_blkcg(), bio_associate_current() and wbc_account_io()
are used to implement cgroup writeback support for filesystems and
thus need to be exported. Export them.
Signed-off-by: Tejun Heo <tj@kernel•org>
Reported-by: Stephen Rothwell <sfr@canb•auug.org.au>
---
Hello, Jens.
While this change isn't strictly necessary for 4.2, I think it'd
better to push it through for-linus so that it's there before any
filesystem specific changes are merged.
Thanks.
block/bio.c | 2 ++
fs/fs-writeback.c | 1 +
2 files changed, 3 insertions(+)
--- a/block/bio.c
+++ b/block/bio.c
@@ -2009,6 +2009,7 @@ int bio_associate_blkcg(struct bio *bio,
bio->bi_css = blkcg_css;
return 0;
}
+EXPORT_SYMBOL_GPL(bio_associate_blkcg);
/**
* bio_associate_current - associate a bio with %current
@@ -2039,6 +2040,7 @@ int bio_associate_current(struct bio *bi
bio->bi_css = task_get_css(current, blkio_cgrp_id);
return 0;
}
+EXPORT_SYMBOL_GPL(bio_associate_current);
/**
* bio_disassociate_task - undo bio_associate_current()
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -702,6 +702,7 @@ void wbc_account_io(struct writeback_con
else
wbc->wb_tcand_bytes -= min(bytes, wbc->wb_tcand_bytes);
}
+EXPORT_SYMBOL_GPL(wbc_account_io);
/**
* inode_congested - test whether an inode is congested
next prev parent reply other threads:[~2015-07-23 18:27 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-23 0:56 linux-next: build failure after merge of the ext4 tree Stephen Rothwell
2015-07-23 16:49 ` Theodore Ts'o
2015-07-23 17:23 ` Theodore Ts'o
2015-07-23 17:41 ` Tejun Heo
2015-07-23 18:27 ` Tejun Heo [this message]
2015-07-23 18:30 ` [PATCH block/for-linus] block: export bio_associate_*() and wbc_account_io() Chris Mason
2015-07-23 19:36 ` Jens Axboe
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