xfs: enable FITRIM on the realtime device

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Implement FITRIM for the realtime device by pretending that it's
"space" immediately after the data device.  We have to hold the
rtbitmap ILOCK while the discard operations are ongoing because there's
no busy extent tracking for the rt volume to prevent reallocations.

Cc: Konst Mayer <cdlscpmv@gmail.com>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>

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Darrick J. Wong 2024-06-24 08:04:21 -07:00 • committed by Chandan Babu R

parent a330cae8a7

commit 3ba3ab1f67

2 changed files with 308 additions and 24 deletions

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303

fs/xfs/xfs_discard.c

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29

fs/xfs/xfs_trace.h

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