[XFS] Fix block reservation mechanism.

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The block reservation mechanism has been broken since the per-cpu
superblock counters were introduced. Make the block reservation code work
with the per-cpu counters by syncing the counters, snapshotting the amount
of available space and then doing a modifcation of the counter state
according to the result. Continue in a loop until we either have no space
available or we reserve some space.

SGI-PV: 956323
SGI-Modid: xfs-linux-melb:xfs-kern:27895a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>

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David Chinner 2007-02-10 18:36:17 +11:00 • committed by Tim Shimmin

parent 20f4ebf2bf

commit dbcabad19a

4 changed files with 54 additions and 20 deletions

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54

fs/xfs/xfs_fsops.c

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16

fs/xfs/xfs_mount.c

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2

fs/xfs/xfs_mount.h

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2

fs/xfs/xfs_vfsops.c

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