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bio: Fix outdated comment about bio_alloc_bioset()

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In commit 451a9ebf65 bio_alloc_bioset()
was refactored not to take NULL as a valid argument for bs. This patch
changes the comment for that function accordingly. Currently, passing
NULL as argument to parameter bs would result in a NULL pointer
dereference.

Signed-off-by: Jaak Ristioja <ristioja@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Jaak Ristioja 2010-01-15 12:05:07 +02:00 committed by Jiri Kosina
parent 6382dc3340
commit db18efac0b
1 changed files with 3 additions and 4 deletions
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7
fs/bio.c
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@ -264,13 +264,12 @@ EXPORT_SYMBOL(bio_init);
* bio_alloc_bioset - allocate a bio for I/O
* @gfp_mask: the GFP_ mask given to the slab allocator
* @nr_iovecs: number of iovecs to pre-allocate
* @bs: the bio_set to allocate from. If %NULL, just use kmalloc
* @bs: the bio_set to allocate from.
*
* Description:
* bio_alloc_bioset will first try its own mempool to satisfy the allocation.
* bio_alloc_bioset will try its own mempool to satisfy the allocation.
* If %__GFP_WAIT is set then we will block on the internal pool waiting
* for a &struct bio to become free. If a %NULL @bs is passed in, we will
* fall back to just using @kmalloc to allocate the required memory.
* for a &struct bio to become free.
*
* Note that the caller must set ->bi_destructor on successful return
* of a bio, to do the appropriate freeing of the bio once the reference