diff options
| author | Vlastimil Babka <vbabka@suse.cz> | 2018-08-14 21:50:47 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-14 21:59:01 +0300 |
| commit | 792adb90fa724ce07c0171cbc96b9215af4b1045 (patch) | |
| tree | db584b7bb4de0b73424f99f736610eb54a9b0259 | |
| parent | 15bc88cd5f8e095fa7fe8494d1980ad29885d984 (diff) | |
| download | linux-792adb90fa724ce07c0171cbc96b9215af4b1045.tar.xz | |
x86/init: fix build with CONFIG_SWAP=n
The introduction of generic_max_swapfile_size and arch-specific versions has
broken linking on x86 with CONFIG_SWAP=n due to undefined reference to
'generic_max_swapfile_size'. Fix it by compiling the x86-specific
max_swapfile_size() only with CONFIG_SWAP=y.
Reported-by: Tomas Pruzina <pruzinat@gmail.com>
Fixes: 377eeaa8e11f ("x86/speculation/l1tf: Limit swap file size to MAX_PA/2")
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | arch/x86/mm/init.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 156ed8154af8..acfab322fbe0 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -914,6 +914,7 @@ void update_cache_mode_entry(unsigned entry, enum page_cache_mode cache) __pte2cachemode_tbl[entry] = cache; } +#ifdef CONFIG_SWAP unsigned long max_swapfile_size(void) { unsigned long pages; @@ -934,3 +935,4 @@ unsigned long max_swapfile_size(void) } return pages; } +#endif |