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
History
File Mode Size
Kconfig -rw-r--r-- 511 bytes
Makefile -rw-r--r-- 365 bytes
attributes.c -rw-r--r-- 8.5 KB
bfind.c -rw-r--r-- 6.1 KB
bitmap.c -rw-r--r-- 5.0 KB
bnode.c -rw-r--r-- 15.3 KB
brec.c -rw-r--r-- 13.6 KB
btree.c -rw-r--r-- 12.2 KB
catalog.c -rw-r--r-- 14.1 KB
dir.c -rw-r--r-- 13.8 KB
extents.c -rw-r--r-- 15.5 KB
hfsplus_fs.h -rw-r--r-- 16.3 KB
hfsplus_raw.h -rw-r--r-- 9.5 KB
inode.c -rw-r--r-- 17.2 KB
ioctl.c -rw-r--r-- 3.6 KB
options.c -rw-r--r-- 5.3 KB
part_tbl.c -rw-r--r-- 4.2 KB
super.c -rw-r--r-- 18.0 KB
tables.c -rw-r--r-- 119.1 KB
unicode.c -rw-r--r-- 10.5 KB
wrapper.c -rw-r--r-- 7.0 KB
xattr.c -rw-r--r-- 23.3 KB
xattr.h -rw-r--r-- 1.2 KB
xattr_security.c -rw-r--r-- 2.0 KB
xattr_trusted.c -rw-r--r-- 1017 bytes
xattr_user.c -rw-r--r-- 963 bytes

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