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| author | Hugh Dickins <hughd@google.com> | 2022-03-25 04:13:59 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-25 05:06:51 +0300 |
| commit | 566d3362885aab04d6b0f885f12db3176ca3a032 (patch) | |
| tree | 25ac4e4fd25635a26587151d6b54a90a9e86888d /mm/ptdump.c | |
| parent | 7f7609175ff2339a2cffa48ba2474ef928d7eafd (diff) | |
| download | linux-566d3362885aab04d6b0f885f12db3176ca3a032.tar.xz | |
mm: warn on deleting redirtied only if accounted
filemap_unaccount_folio() has a WARN_ON_ONCE(folio_test_dirty(folio)). It
is good to warn of late dirtying on a persistent filesystem, but late
dirtying on tmpfs can only lose data which is expected to be thrown away;
and it's a pity if that warning comes ONCE on tmpfs, then hides others
which really matter. Make it conditional on mapping_cap_writeback().
Cleanup: then folio_account_cleaned() no longer needs to check that for
itself, and so no longer needs to know the mapping.
Link: https://lkml.kernel.org/r/b5a1106c-7226-a5c6-ad41-ad4832cae1f@google.com
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Jan Kara <jack@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/ptdump.c')
0 files changed, 0 insertions, 0 deletions