Revision 64165b1affc5bc16231ac971e66aae7d68d57f2c authored by Hugh Dickins on 19 April 2019, 00:50:09 UTC, committed by Linus Torvalds on 19 April 2019, 16:46:04 UTC
The old try_to_unuse() implementation was driven by find_next_to_unuse(),
which terminated as soon as all the swap had been freed.
Add inuse_pages checks now (alongside signal_pending()) to stop scanning
mms and swap_map once finished.
The same ought to be done in shmem_unuse() too, but never was before,
and needs a different interface: so leave it as is for now.
Link: http://lkml.kernel.org/r/alpine.LSU.2.11.1904081258200.1523@eggly.anvils
Fixes: b56a2d8af914 ("mm: rid swapoff of quadratic complexity")
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Kelley Nielsen <kelleynnn@gmail.com>
Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: Rik van Riel <riel@surriel.com>
Cc: Vineeth Pillai <vpillai@digitalocean.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent dd862de
| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 27.3 KB |
| Makefile | -rw-r--r-- | 2.4 KB |
| mac-celtic.c | -rw-r--r-- | 30.5 KB |
| mac-centeuro.c | -rw-r--r-- | 26.4 KB |
| mac-croatian.c | -rw-r--r-- | 30.5 KB |
| mac-cyrillic.c | -rw-r--r-- | 24.3 KB |
| mac-gaelic.c | -rw-r--r-- | 28.4 KB |
| mac-greek.c | -rw-r--r-- | 24.3 KB |
| mac-iceland.c | -rw-r--r-- | 30.5 KB |
| mac-inuit.c | -rw-r--r-- | 26.4 KB |
| mac-roman.c | -rw-r--r-- | 32.6 KB |
| mac-romanian.c | -rw-r--r-- | 30.5 KB |
| mac-turkish.c | -rw-r--r-- | 30.5 KB |
| nls_ascii.c | -rw-r--r-- | 5.7 KB |
| nls_base.c | -rw-r--r-- | 15.6 KB |
| nls_cp1250.c | -rw-r--r-- | 15.0 KB |
| nls_cp1251.c | -rw-r--r-- | 12.4 KB |
| nls_cp1255.c | -rw-r--r-- | 17.0 KB |
| nls_cp437.c | -rw-r--r-- | 17.1 KB |
| nls_cp737.c | -rw-r--r-- | 15.1 KB |
| nls_cp775.c | -rw-r--r-- | 13.2 KB |
| nls_cp850.c | -rw-r--r-- | 13.1 KB |
| nls_cp852.c | -rw-r--r-- | 14.5 KB |
| nls_cp855.c | -rw-r--r-- | 12.1 KB |
| nls_cp857.c | -rw-r--r-- | 12.4 KB |
| nls_cp860.c | -rw-r--r-- | 15.8 KB |
| nls_cp861.c | -rw-r--r-- | 17.1 KB |
| nls_cp862.c | -rw-r--r-- | 19.0 KB |
| nls_cp863.c | -rw-r--r-- | 16.8 KB |
| nls_cp864.c | -rw-r--r-- | 18.6 KB |
| nls_cp865.c | -rw-r--r-- | 17.1 KB |
| nls_cp866.c | -rw-r--r-- | 12.3 KB |
| nls_cp869.c | -rw-r--r-- | 13.1 KB |
| nls_cp874.c | -rw-r--r-- | 10.7 KB |
| nls_cp932.c | -rw-r--r-- | 479.7 KB |
| nls_cp936.c | -rw-r--r-- | 681.9 KB |
| nls_cp949.c | -rw-r--r-- | 854.7 KB |
| nls_cp950.c | -rw-r--r-- | 579.9 KB |
| nls_euc-jp.c | -rw-r--r-- | 23.8 KB |
| nls_iso8859-1.c | -rw-r--r-- | 10.0 KB |
| nls_iso8859-13.c | -rw-r--r-- | 11.5 KB |
| nls_iso8859-14.c | -rw-r--r-- | 14.5 KB |
| nls_iso8859-15.c | -rw-r--r-- | 12.6 KB |
| nls_iso8859-2.c | -rw-r--r-- | 12.8 KB |
| nls_iso8859-3.c | -rw-r--r-- | 12.8 KB |
| nls_iso8859-4.c | -rw-r--r-- | 12.8 KB |
| nls_iso8859-5.c | -rw-r--r-- | 10.6 KB |
| nls_iso8859-6.c | -rw-r--r-- | 10.2 KB |
| nls_iso8859-7.c | -rw-r--r-- | 13.2 KB |
| nls_iso8859-9.c | -rw-r--r-- | 10.8 KB |
| nls_koi8-r.c | -rw-r--r-- | 13.5 KB |
| nls_koi8-ru.c | -rw-r--r-- | 1.6 KB |
| nls_koi8-u.c | -rw-r--r-- | 13.9 KB |
| nls_utf8.c | -rw-r--r-- | 1.2 KB |
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