From: Matthew Wilcox <willy@infradead.org> To: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Matthew Wilcox <willy@infradead.org>, Jan Kara <jack@suse.cz>, Jeff Layton <jlayton@redhat.com>, Lukas Czerner <lczerner@redhat.com>, Ross Zwisler <ross.zwisler@linux.intel.com>, Christoph Hellwig <hch@lst.de>, Goldwyn Rodrigues <rgoldwyn@suse.com>, Nicholas Piggin <npiggin@gmail.com>, Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>, linux-nilfs@vger.kernel.org, Jaegeuk Kim <jaegeuk@kernel.org>, Chao Yu <yuchao0@huawei.com>, linux-f2fs-devel@lists.sourceforge.net Subject: [PATCH v14 40/74] mm: Convert __do_page_cache_readahead to XArray Date: Sat, 16 Jun 2018 19:00:18 -0700 [thread overview] Message-ID: <20180617020052.4759-41-willy@infradead.org> (raw) In-Reply-To: <20180617020052.4759-1-willy@infradead.org> This one is trivial. Signed-off-by: Matthew Wilcox <willy@infradead.org> --- mm/readahead.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/mm/readahead.c b/mm/readahead.c index 59998ca31f2a..07f9734dc79f 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -174,9 +174,7 @@ unsigned int __do_page_cache_readahead(struct address_space *mapping, if (page_offset > end_index) break; - rcu_read_lock(); - page = radix_tree_lookup(&mapping->i_pages, page_offset); - rcu_read_unlock(); + page = xa_load(&mapping->i_pages, page_offset); if (page && !xa_is_value(page)) { /* * Page already present? Kick off the current batch of -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Matthew Wilcox <willy@infradead.org> To: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: linux-nilfs@vger.kernel.org, Jan Kara <jack@suse.cz>, Jeff Layton <jlayton@redhat.com>, Jaegeuk Kim <jaegeuk@kernel.org>, Matthew Wilcox <willy@infradead.org>, linux-f2fs-devel@lists.sourceforge.net, Nicholas Piggin <npiggin@gmail.com>, Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>, Lukas Czerner <lczerner@redhat.com>, Ross Zwisler <ross.zwisler@linux.intel.com>, Christoph Hellwig <hch@lst.de>, Goldwyn Rodrigues <rgoldwyn@suse.com> Subject: [PATCH v14 40/74] mm: Convert __do_page_cache_readahead to XArray Date: Sat, 16 Jun 2018 19:00:18 -0700 [thread overview] Message-ID: <20180617020052.4759-41-willy@infradead.org> (raw) In-Reply-To: <20180617020052.4759-1-willy@infradead.org> This one is trivial. Signed-off-by: Matthew Wilcox <willy@infradead.org> --- mm/readahead.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/mm/readahead.c b/mm/readahead.c index 59998ca31f2a..07f9734dc79f 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -174,9 +174,7 @@ unsigned int __do_page_cache_readahead(struct address_space *mapping, if (page_offset > end_index) break; - rcu_read_lock(); - page = radix_tree_lookup(&mapping->i_pages, page_offset); - rcu_read_unlock(); + page = xa_load(&mapping->i_pages, page_offset); if (page && !xa_is_value(page)) { /* * Page already present? Kick off the current batch of -- 2.17.1 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot
next prev parent reply other threads:[~2018-06-17 2:12 UTC|newest] Thread overview: 162+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-06-17 1:59 [PATCH v14 00/74] Convert page cache to XArray Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 01/74] Update email address Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 02/74] radix tree test suite: Enable ubsan Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 03/74] dax: Fix use of zero page Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 04/74] xarray: Replace exceptional entries Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 05/74] xarray: Change definition of sibling entries Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 06/74] xarray: Add definition of struct xarray Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 07/74] xarray: Define struct xa_node Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 08/74] xarray: Add documentation Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 09/74] xarray: Add XArray load operation Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 10/74] xarray: Add XArray tags Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 11/74] xarray: Add XArray unconditional store operations Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 12/74] xarray: Add XArray conditional " Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 13/74] xarray: Add XArray iterators Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 14/74] xarray: Extract entries from an XArray Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 15/74] xarray: Destroy " Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 16/74] xarray: Step through " Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 17/74] xarray: Add xas_for_each_conflict Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 18/74] xarray: Add xas_create_range Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 19/74] xarray: Add MAINTAINERS entry Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 20/74] page cache: Rearrange address_space Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 1:59 ` [PATCH v14 21/74] page cache: Convert hole search to XArray Matthew Wilcox 2018-06-17 1:59 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 22/74] page cache: Add and replace pages using the XArray Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 23/74] page cache: Convert page deletion to XArray Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 24/74] page cache: Convert find_get_entry " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 25/74] page cache: Convert find_get_entries " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 26/74] page cache: Convert find_get_pages_range " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 27/74] page cache: Convert find_get_pages_contig " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 28/74] page cache; Convert find_get_pages_range_tag " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 29/74] page cache: Convert find_get_entries_tag " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 30/74] page cache: Convert filemap_map_pages " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 31/74] radix tree test suite: Convert regression1 " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 32/74] page cache: Convert delete_batch " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 33/74] page cache: Remove stray radix comment Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 34/74] page cache: Convert filemap_range_has_page to XArray Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 35/74] mm: Convert page-writeback " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 36/74] mm: Convert workingset " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 37/74] mm: Convert truncate " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 38/74] mm: Convert add_to_swap_cache " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 39/74] mm: Convert delete_from_swap_cache " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox [this message] 2018-06-17 2:00 ` [PATCH v14 40/74] mm: Convert __do_page_cache_readahead " Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 41/74] mm: Convert page migration " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 42/74] mm: Convert huge_memory " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 43/74] mm: Convert collapse_shmem " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 44/74] mm: Convert khugepaged_scan_shmem " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 45/74] mm: Convert is_page_cache_freeable " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 46/74] pagevec: Use xa_tag_t Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 47/74] shmem: Convert shmem_radix_tree_replace to XArray Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 48/74] shmem: Convert shmem_confirm_swap " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 49/74] shmem: Convert find_swap_entry " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 50/74] shmem: Convert shmem_add_to_page_cache " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 51/74] shmem: Convert shmem_alloc_hugepage " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 52/74] shmem: Convert shmem_free_swap " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 53/74] shmem: Convert shmem_partial_swap_usage " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 54/74] memfd: Convert memfd_wait_for_pins " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 55/74] memfd: Convert memfd_tag_pins " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 56/74] shmem: Comment fixups Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 57/74] btrfs: Convert page cache to XArray Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 58/74] fs: Convert buffer " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 59/74] fs: Convert writeback " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 60/74] nilfs2: Convert " Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 61/74] f2fs: " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 62/74] dax: Rename some functions Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 63/74] dax: Hash on XArray instead of mapping Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 64/74] dax: Convert dax_insert_pfn_mkwrite to XArray Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 65/74] dax: Convert dax_layout_busy_page " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 66/74] dax: Convert __dax_invalidate_entry " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 67/74] dax: Convert dax writeback " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 68/74] dax: Convert dax_lock_page " Matthew Wilcox 2018-06-29 17:30 ` Ross Zwisler 2018-06-29 17:30 ` Ross Zwisler 2018-07-06 11:54 ` [PATCH] fs/dax: remove unused function Anders Roxell 2018-07-06 13:04 ` [PATCH v14 68/74] dax: Convert dax_lock_page to XArray Matthew Wilcox 2018-07-06 13:04 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 69/74] dax: Convert page fault handlers " Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 70/74] page cache: Finish XArray conversion Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 71/74] radix tree: Remove radix_tree_update_node_t Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 72/74] radix tree: Remove split/join code Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 73/74] radix tree: Remove radix_tree_maybe_preload_order Matthew Wilcox 2018-06-17 2:00 ` [PATCH v14 74/74] radix tree: Remove radix_tree_clear_tags Matthew Wilcox 2018-06-17 2:00 ` Matthew Wilcox 2018-06-19 3:12 ` [PATCH v14 00/74] Convert page cache to XArray Ross Zwisler 2018-06-19 9:22 ` Matthew Wilcox 2018-06-19 16:40 ` Ross Zwisler 2018-06-19 17:16 ` Matthew Wilcox 2018-06-27 11:05 ` Matthew Wilcox 2018-06-27 11:05 ` Matthew Wilcox 2018-06-27 19:44 ` Ross Zwisler 2018-06-28 8:39 ` Matthew Wilcox 2018-06-28 16:30 ` Ross Zwisler 2018-07-25 21:03 ` Matthew Wilcox 2018-07-25 21:12 ` Ross Zwisler 2018-07-27 17:20 ` Ross Zwisler 2018-07-27 17:20 ` Ross Zwisler 2018-07-30 15:43 ` Matthew Wilcox
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