From dabdb3836cea0680b744daae068c7eac24fe1556 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Fri, 6 May 2022 15:22:36 -0400 Subject: [PATCH] mm/fs: delete PF_SWAPWRITE Source kernel commit: b698f0a1773f7df73f2bb4bfe0e597ea1bb3881f PF_SWAPWRITE has been redundant since v3.2 commit ee72886d8ed5 ("mm: vmscan: do not writeback filesystem pages in direct reclaim"). Coincidentally, NeilBrown's current patch "remove inode_congested()" deletes may_write_to_inode(), which appeared to be the one function which took notice of PF_SWAPWRITE. But if you study the old logic, and the conditions under which may_write_to_inode() was called, you discover that flag and function have been pointless for a decade. Link: https://lkml.kernel.org/r/75e80e7-742d-e3bd-531-614db8961e4@google.com Signed-off-by: Hugh Dickins Cc: NeilBrown Cc: Jan Kara Cc: "Darrick J. Wong" Cc: Dave Chinner Cc: Matthew Wilcox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Eric Sandeen --- libxfs/xfs_btree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libxfs/xfs_btree.c b/libxfs/xfs_btree.c index 4fe2378e7..18fbe768e 100644 --- a/libxfs/xfs_btree.c +++ b/libxfs/xfs_btree.c @@ -2815,7 +2815,7 @@ xfs_btree_split_worker( * in any way. */ if (args->kswapd) - new_pflags |= PF_MEMALLOC | PF_SWAPWRITE | PF_KSWAPD; + new_pflags |= PF_MEMALLOC | PF_KSWAPD; current_set_flags_nested(&pflags, new_pflags); xfs_trans_set_context(args->cur->bc_tp); -- 2.39.5