Messages in this thread |  | | | Date | Tue, 29 Oct 2002 12:42:24 -0500 (EST) | | From | Alexander Viro <> | | Subject | Re: [PATCH] dm update 3/3 |
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On Tue, 29 Oct 2002, Joe Thornber wrote:
> Keep track of allocated minors in a bitset rather than abusing > get_gendisk.
> + spin_lock(&_minor_lock); > + for (i = 0; i < MAX_DEVICES; i++) { > + if (!test_bit(i, _minor_bits)) { > + r = i; > + set_bit(i, _minor_bits); > DMWARN("allocating minor = %d", i); > - return i; > + break; > } > + } > + spin_unlock(&_minor_lock);
Ugh. See find_first_zero_bit() - no need to reinvent that wheel...
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