xfs: consolidate buffer locking in xfs_buf_get_map

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Consolidate the code to lock the buffer based on the passed in flags
into xfs_buf_get_map instead of having two different sites for buffer
lookup vs insertation.  This requires initializing b_lock to unlocked on
allocation and doing an atomic for locking it for newly allocated buffers,
but greatly simplifies the logic.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>

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Christoph Hellwig 2026-07-15 16:50:55 +02:00 • committed by Carlos Maiolino

parent 45fd506c33

commit 568c8798a3

2 changed files with 23 additions and 41 deletions

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62

fs/xfs/xfs_buf.c

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2

fs/xfs/xfs_trace.h

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