tree 093daff58d47dcfad204a57f274db5baaadfdfec
parent bc4d60eba3f225f7ca1023d1f3b5caafd714813e
author Hugh Dickins <hughd@google.com> 1651864956 -0400
committer Eric Sandeen <sandeen@sandeen.net> 1651864956 -0400

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 <hughd@google.com>
Cc: NeilBrown <neilb@suse.de>
Cc: Jan Kara <jack@suse.de>
Cc: "Darrick J. Wong" <djwong@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>