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xfs: kill XBF_LOCK

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Buffers are always returned locked from the lookup routines. Hence
we don't need to tell the lookup routines to return locked buffers,
on to try and lock them. Remove XBF_LOCK from all the callers and
from internal buffer cache usage.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Dave Chinner
2012-04-23 15:58:54 +10:00
committed by Ben Myers
parent 795cac72e9
commit a8acad7073
11 changed files with 29 additions and 49 deletions
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4
fs/xfs/xfs_trans_buf.c
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@@ -142,7 +142,7 @@ xfs_trans_get_buf(xfs_trans_t *tp,
xfs_buf_log_item_t *bip;
if (flags == 0)
flags = XBF_LOCK | XBF_MAPPED;
flags = XBF_MAPPED;
/*
* Default to a normal get_buf() call if the tp is NULL.
@@ -275,7 +275,7 @@ xfs_trans_read_buf(
int error;
if (flags == 0)
flags = XBF_LOCK | XBF_MAPPED;
flags = XBF_MAPPED;
/*
* Default to a normal get_buf() call if the tp is NULL.