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c0fb44c5 CK |
1 | dnl # |
2 | dnl # Linux 5.16 no longer allows directly calling wait_on_page_bit, and | |
3 | dnl # instead requires you to call folio-specific functions. In this case, | |
4 | dnl # wait_on_page_bit(pg, PG_writeback) becomes | |
5 | dnl # folio_wait_bit(pg, PG_writeback) | |
6 | dnl # | |
7 | AC_DEFUN([ZFS_AC_KERNEL_SRC_PAGEMAP_FOLIO_WAIT_BIT], [ | |
8 | ZFS_LINUX_TEST_SRC([pagemap_has_folio_wait_bit], [ | |
9 | #include <linux/pagemap.h> | |
10 | ],[ | |
11 | static struct folio *f = NULL; | |
12 | ||
13 | folio_wait_bit(f, PG_writeback); | |
14 | ]) | |
15 | ]) | |
16 | ||
17 | AC_DEFUN([ZFS_AC_KERNEL_PAGEMAP_FOLIO_WAIT_BIT], [ | |
b9d98453 | 18 | AC_MSG_CHECKING([whether folio_wait_bit() exists]) |
c0fb44c5 CK |
19 | ZFS_LINUX_TEST_RESULT([pagemap_has_folio_wait_bit], [ |
20 | AC_MSG_RESULT([yes]) | |
21 | AC_DEFINE(HAVE_PAGEMAP_FOLIO_WAIT_BIT, 1, | |
22 | [folio_wait_bit() exists]) | |
23 | ],[ | |
24 | AC_MSG_RESULT([no]) | |
25 | ]) | |
26 | ]) |