Tejun Heo 49731baa41 block: restore multiple bd_link_disk_holder() support ... Commit e09b457b (block: simplify holder symlink handling) incorrectly assumed that there is only one link at maximum. dm may use multiple links and expects block layer to track reference count for each link, which is different from and unrelated to the exclusive device holder identified by @holder when the device is opened. Remove the single holder assumption and automatic removal of the link and revive the per-link reference count tracking. The code essentially behaves the same as before commit e09b457b sans the unnecessary kobject reference count dancing. While at it, note that this facility should not be used by anyone else than the current ones. Sysfs symlinks shouldn't be abused like this and the whole thing doesn't belong in the block layer at all. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Milan Broz <mbroz@redhat.com> Cc: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Cc: Neil Brown <neilb@suse.de> Cc: linux-raid@vger.kernel.org Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>		2011-01-14 18:44:22 +01:00
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acpi	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6	2011-01-13 20:15:35 -08:00
asm-generic	thp: mm: define MADV_NOHUGEPAGE	2011-01-13 17:32:47 -08:00
crypto	crypto: padlock - Move padlock.h into include/crypto	2011-01-07 14:52:00 +11:00
drm	Merge branch 'drm-radeon-ni' of ../drm-radeon-next into drm-core-next	2011-01-10 09:27:06 +10:00
keys
linux	block: restore multiple bd_link_disk_holder() support	2011-01-14 18:44:22 +01:00
math-emu
media	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-01-13 10:05:56 -08:00
mtd
net	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-01-13 10:05:56 -08:00
pcmcia
rdma
rxrpc
scsi	Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block	2011-01-13 10:45:01 -08:00
sound	Merge branch 'topic/asoc' into for-linus	2011-01-13 08:37:24 +01:00
trace	mm: vmscan: rename lumpy_mode to reclaim_mode	2011-01-13 17:32:34 -08:00
video	Merge branch 'fbdev/udlfb'	2011-01-06 18:10:09 +09:00
xen	Merge branch 'stable/gntdev' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen	2011-01-13 18:46:48 -08:00
Kbuild