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| author | Matthew Wilcox <willy@infradead.org> | 2018-03-21 16:49:06 -0400 |
|---|---|---|
| committer | Matthew Wilcox <willy@infradead.org> | 2018-08-21 23:54:16 -0400 |
| commit | 3aed4bc1e591959733b4e939e9965e65ffdff603 (patch) | |
| tree | 42bbb2cc00f4488ea8118344171e8551858260e8 /drivers | |
| parent | 5ade60dda43c8906d4554374226c2eb11cc2ffba (diff) | |
| download | linux-stable-3aed4bc1e591959733b4e939e9965e65ffdff603.tar.gz linux-stable-3aed4bc1e591959733b4e939e9965e65ffdff603.tar.bz2 linux-stable-3aed4bc1e591959733b4e939e9965e65ffdff603.zip | |
mtip32xx: Convert to new IDA API
Removes a use of ida_pre_get() and a personalised spinlock.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/mtip32xx/mtip32xx.c | 29 |
1 files changed, 6 insertions, 23 deletions
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index c73626decb46..2b6d6bce76df 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -118,7 +118,6 @@ static struct dentry *dfs_device_status; static u32 cpu_use[NR_CPUS]; -static DEFINE_SPINLOCK(rssd_index_lock); static DEFINE_IDA(rssd_index_ida); static int mtip_block_initialize(struct driver_data *dd); @@ -3768,20 +3767,10 @@ static int mtip_block_initialize(struct driver_data *dd) goto alloc_disk_error; } - /* Generate the disk name, implemented same as in sd.c */ - do { - if (!ida_pre_get(&rssd_index_ida, GFP_KERNEL)) { - rv = -ENOMEM; - goto ida_get_error; - } - - spin_lock(&rssd_index_lock); - rv = ida_get_new(&rssd_index_ida, &index); - spin_unlock(&rssd_index_lock); - } while (rv == -EAGAIN); - - if (rv) + rv = ida_alloc(&rssd_index_ida, GFP_KERNEL); + if (rv < 0) goto ida_get_error; + index = rv; rv = rssd_disk_name_format("rssd", index, @@ -3923,9 +3912,7 @@ block_queue_alloc_init_error: block_queue_alloc_tag_error: mtip_hw_debugfs_exit(dd); disk_index_error: - spin_lock(&rssd_index_lock); - ida_remove(&rssd_index_ida, index); - spin_unlock(&rssd_index_lock); + ida_free(&rssd_index_ida, index); ida_get_error: put_disk(dd->disk); @@ -4013,9 +4000,7 @@ static int mtip_block_remove(struct driver_data *dd) } dd->disk = NULL; - spin_lock(&rssd_index_lock); - ida_remove(&rssd_index_ida, dd->index); - spin_unlock(&rssd_index_lock); + ida_free(&rssd_index_ida, dd->index); /* De-initialize the protocol layer. */ mtip_hw_exit(dd); @@ -4055,9 +4040,7 @@ static int mtip_block_shutdown(struct driver_data *dd) dd->queue = NULL; } - spin_lock(&rssd_index_lock); - ida_remove(&rssd_index_ida, dd->index); - spin_unlock(&rssd_index_lock); + ida_free(&rssd_index_ida, dd->index); return 0; } |