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| author | Matthew Wilcox <mawilcox@microsoft.com> | 2018-04-10 16:36:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-11 10:28:39 -0700 |
| commit | b93b016313b3ba8003c3b8bb71f569af91f19fc7 (patch) | |
| tree | ad4be96414189dcdf8c972f351ba430996e9fdff /drivers/staging/lustre/lustre/mdc/mdc_request.c | |
| parent | f6bb2a2c0b81c47282ddb7883f92e65a063c27dd (diff) | |
| download | op-kernel-dev-b93b016313b3ba8003c3b8bb71f569af91f19fc7.zip op-kernel-dev-b93b016313b3ba8003c3b8bb71f569af91f19fc7.tar.gz | |
page cache: use xa_lock
Remove the address_space ->tree_lock and use the xa_lock newly added to
the radix_tree_root. Rename the address_space ->page_tree to ->i_pages,
since we don't really care that it's a tree.
[willy@infradead.org: fix nds32, fs/dax.c]
Link: http://lkml.kernel.org/r/20180406145415.GB20605@bombadil.infradead.orgLink: http://lkml.kernel.org/r/20180313132639.17387-9-willy@infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/staging/lustre/lustre/mdc/mdc_request.c')
| -rw-r--r-- | drivers/staging/lustre/lustre/mdc/mdc_request.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c index 3b1c8e5..8ee7b4d 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_request.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c @@ -934,14 +934,14 @@ static struct page *mdc_page_locate(struct address_space *mapping, __u64 *hash, struct page *page; int found; - spin_lock_irq(&mapping->tree_lock); - found = radix_tree_gang_lookup(&mapping->page_tree, + xa_lock_irq(&mapping->i_pages); + found = radix_tree_gang_lookup(&mapping->i_pages, (void **)&page, offset, 1); if (found > 0 && !radix_tree_exceptional_entry(page)) { struct lu_dirpage *dp; get_page(page); - spin_unlock_irq(&mapping->tree_lock); + xa_unlock_irq(&mapping->i_pages); /* * In contrast to find_lock_page() we are sure that directory * page cannot be truncated (while DLM lock is held) and, @@ -989,7 +989,7 @@ static struct page *mdc_page_locate(struct address_space *mapping, __u64 *hash, page = ERR_PTR(-EIO); } } else { - spin_unlock_irq(&mapping->tree_lock); + xa_unlock_irq(&mapping->i_pages); page = NULL; } return page; |
