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| author | Vlastimil Babka <vbabka@suse.cz> | 2018-08-14 21:50:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-15 18:37:34 +0300 |
| commit | c5b169d4c6bda4e822f7d0994a3a39f55ed412e7 (patch) | |
| tree | 93ae9c875900072e6c2288f89b6f27c5a69b76ee | |
| parent | f6be6903fc10637c7cd831b267da5427bd0ce653 (diff) | |
| download | linux-c5b169d4c6bda4e822f7d0994a3a39f55ed412e7.tar.xz | |
x86/init: fix build with CONFIG_SWAP=n
commit 792adb90fa724ce07c0171cbc96b9215af4b1045 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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 862191ed3d6e..83241eb71cd4 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -883,6 +883,7 @@ 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; @@ -903,3 +904,4 @@ unsigned long max_swapfile_size(void) } return pages; } +#endif |