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[PATCH 0/4] xfs: resurrect realtime subvolume support on kernel 2.6.37

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Subject: [PATCH 0/4] xfs: resurrect realtime subvolume support on kernel 2.6.37
From: kdasu <kdasu.kdev@xxxxxxxxx>
Date: Fri, 17 Feb 2012 14:46:35 -0800 (PST)
Fixed bimap inode deadlock  existing on 2.6.37.

[PATCH 4/4]   xfs: fix deadlock in xfs_rtfree_extent with kernel v2.6.37

Also added the realtime subvolume patches from the 2.6.39 release.

[PATCH 1/4] xfs: only lock the rt bitmap inode once per allocation
[PATCH 2/4] xfs: fix xfs_get_extsz_hint for a zero extent size hint
[PATCH 3/4] xfs: add lockdep annotations for the rt inodes

These fixes were needed to resurrect realtime subvolume support on 
2.6.37 kernel.

I suspect the deadlock problem while freeing multiple extents 
exits  on 2.6.39  in the xfs_rtfree_entent() call.

Kamal
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