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xfs: simplify and remove xfs_ireclaim

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xfs_ireclaim has to get and put te pag structure because it is only
called with the inode to reclaim. The one caller of this function
already has a reference on the pag and a pointer to is, so move the
radix tree delete to the caller and remove xfs_ireclaim completely.
This avoids a xfs_perag_get/put on every inode being reclaimed.

The overhead was noticed in a bug report at:

https://bugzilla.kernel.org/show_bug.cgi?id=16348

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Dave Chinner 2010-07-20 17:53:25 +10:00 • committed by Alex Elder
parent ec53d1dbb3
commit 2f11feabb1
3 changed files with 32 additions and 54 deletions
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2
fs/xfs/xfs_inode.h
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@ -450,7 +450,7 @@ void xfs_ilock_demote(xfs_inode_t *, uint);
int xfs_isilocked(xfs_inode_t *, uint);
uint xfs_ilock_map_shared(xfs_inode_t *);
void xfs_iunlock_map_shared(xfs_inode_t *, uint);
void xfs_ireclaim(xfs_inode_t *);
void xfs_inode_free(struct xfs_inode *ip);
/*
* xfs_inode.c prototypes.