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| author | Christoph Hellwig <hch@lst.de> | 2020-05-04 14:47:54 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-08 08:54:29 +0200 |
| commit | 0129d7637fed08b8aa805362074fe4370a9290ea (patch) | |
| tree | 8df029d1a7d64afb645ae7782a58166d54da6f16 | |
| parent | a66fdcda469a0e103fe105dc0c95536fa28dc733 (diff) | |
| download | linux-stable-0129d7637fed08b8aa805362074fe4370a9290ea.tar.gz linux-stable-0129d7637fed08b8aa805362074fe4370a9290ea.tar.bz2 linux-stable-0129d7637fed08b8aa805362074fe4370a9290ea.zip | |
bdi: move bdi_dev_name out of line
[ Upstream commit eb7ae5e06bb6e6ac6bb86872d27c43ebab92f6b2 ]
bdi_dev_name is not a fast path function, move it out of line. This
prepares for using it from modular callers without having to export
an implementation detail like bdi_unknown_name.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | include/linux/backing-dev.h | 9 | ||||
| -rw-r--r-- | mm/backing-dev.c | 10 |
2 files changed, 10 insertions, 9 deletions
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 1ef4aca7b953..d28d57eefe9f 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -499,13 +499,6 @@ static inline int bdi_rw_congested(struct backing_dev_info *bdi) (1 << WB_async_congested)); } -extern const char *bdi_unknown_name; - -static inline const char *bdi_dev_name(struct backing_dev_info *bdi) -{ - if (!bdi || !bdi->dev) - return bdi_unknown_name; - return dev_name(bdi->dev); -} +const char *bdi_dev_name(struct backing_dev_info *bdi); #endif /* _LINUX_BACKING_DEV_H */ diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 2152e85891d1..8501b033bca8 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -19,7 +19,7 @@ struct backing_dev_info noop_backing_dev_info = { EXPORT_SYMBOL_GPL(noop_backing_dev_info); static struct class *bdi_class; -const char *bdi_unknown_name = "(unknown)"; +static const char *bdi_unknown_name = "(unknown)"; /* * bdi_lock protects updates to bdi_list. bdi_list has RCU reader side @@ -976,6 +976,14 @@ void bdi_put(struct backing_dev_info *bdi) } EXPORT_SYMBOL(bdi_put); +const char *bdi_dev_name(struct backing_dev_info *bdi) +{ + if (!bdi || !bdi->dev) + return bdi_unknown_name; + return dev_name(bdi->dev); +} +EXPORT_SYMBOL_GPL(bdi_dev_name); + static wait_queue_head_t congestion_wqh[2] = { __WAIT_QUEUE_HEAD_INITIALIZER(congestion_wqh[0]), __WAIT_QUEUE_HEAD_INITIALIZER(congestion_wqh[1]) |