tree: https://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-next.git kill-btree-inode head: 6dbc29989846e20ef73ae6b9abedad570706c019 commit: 6dbc29989846e20ef73ae6b9abedad570706c019 [33/33] btrfs: add NR_METADATA_BYTES accounting config: x86_64-randconfig-x000-201747 (attached as .config) compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026 reproduce: git checkout 6dbc29989846e20ef73ae6b9abedad570706c019 # save the attached .config to linux build tree make ARCH=x86_64
All warnings (new ones prefixed by >>):
fs/btrfs/extent_io.c: In function 'btrfs_release_extent_buffer_page':
fs/btrfs/extent_io.c:4805:34: error: 'p' undeclared (first use in this
function)
mod_node_page_state(page_pgdat(p), NR_METADATA_BYTES,
^
fs/btrfs/extent_io.c:4805:34: note: each undeclared identifier is reported
only once for each function it appears in
>> fs/btrfs/extent_io.c:4806:9: warning: overflow in implicit constant
>> conversion [-Woverflow]
-PAGE_SIZE);
^
In file included from arch/x86/include/asm/bitops.h:15:0,
from include/linux/bitops.h:37,
from fs/btrfs/extent_io.c:1:
fs/btrfs/extent_io.c: At top level:
include/linux/compiler.h:162:4: warning: '______f' is static but declared in
inline function 'strcpy' which is not static
______f = { \
^
include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
#define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
^~~~~~~~~~
include/linux/string.h:421:2: note: in expansion of macro 'if'
if (p_size == (size_t)-1 && q_size == (size_t)-1)
^~
include/linux/compiler.h:162:4: warning: '______f' is static but declared in
inline function 'kmemdup' which is not static
______f = { \
^
include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
#define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
^~~~~~~~~~
include/linux/string.h:411:2: note: in expansion of macro 'if'
if (p_size < size)
^~
include/linux/compiler.h:162:4: warning: '______f' is static but declared in
inline function 'kmemdup' which is not static
______f = { \
^
include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
#define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
^~~~~~~~~~
include/linux/string.h:409:2: note: in expansion of macro 'if'
if (__builtin_constant_p(size) && p_size < size)
^~
include/linux/compiler.h:162:4: warning: '______f' is static but declared in
inline function 'memchr_inv' which is not static
______f = { \
^
include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
#define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
^~~~~~~~~~
include/linux/string.h:400:2: note: in expansion of macro 'if'
if (p_size < size)
^~
include/linux/compiler.h:162:4: warning: '______f' is static but declared in
inline function 'memchr_inv' which is not static
______f = { \
^
include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
#define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
^~~~~~~~~~
include/linux/string.h:398:2: note: in expansion of macro 'if'
if (__builtin_constant_p(size) && p_size < size)
^~
include/linux/compiler.h:162:4: warning: '______f' is static but declared in
inline function 'memchr' which is not static
______f = { \
^
include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
#define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
^~~~~~~~~~
include/linux/string.h:389:2: note: in expansion of macro 'if'
if (p_size < size)
^~
include/linux/compiler.h:162:4: warning: '______f' is static but declared in
inline function 'memchr' which is not static
______f = { \
^
include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
#define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
^~~~~~~~~~
include/linux/string.h:387:2: note: in expansion of macro 'if'
if (__builtin_constant_p(size) && p_size < size)
^~
include/linux/compiler.h:162:4: warning: '______f' is static but declared in
inline function 'memcmp' which is not static
______f = { \
^
include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
#define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
^~~~~~~~~~
include/linux/string.h:379:2: note: in expansion of macro 'if'
if (p_size < size || q_size < size)
^~
include/linux/compiler.h:162:4: warning: '______f' is static but declared in
inline function 'memcmp' which is not static
______f = { \
^
include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
#define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
^~~~~~~~~~
include/linux/string.h:376:3: note: in expansion of macro 'if'
if (q_size < size)
^~
include/linux/compiler.h:162:4: warning: '______f' is static but declared in
inline function 'memcmp' which is not static
______f = { \
^
include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
#define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
^~~~~~~~~~
include/linux/string.h:374:3: note: in expansion of macro 'if'
if (p_size < size)
^~
include/linux/compiler.h:162:4: warning: '______f' is static but declared in
inline function 'memcmp' which is not static
______f = { \
^
include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if'
vim +4806 fs/btrfs/extent_io.c
4779
4780 /*
4781 * Helper for releasing extent buffer page.
4782 */
4783 static void btrfs_release_extent_buffer_page(struct extent_buffer *eb)
4784 {
4785 unsigned long index;
4786 struct page *page;
4787
4788 BUG_ON(extent_buffer_under_io(eb));
4789
4790 index = num_extent_pages(eb->start, eb->len);
4791 if (index == 0)
4792 return;
4793
4794 ASSERT(!test_bit(EXTENT_BUFFER_DIRTY, &eb->bflags));
4795 do {
4796 index--;
4797 page = eb->pages[index];
4798 if (!page)
4799 continue;
4800 ASSERT(PagePrivate(page));
4801 ASSERT(page->private == (unsigned long)eb);
4802 ClearPagePrivate(page);
4803 set_page_private(page, 0);
4804
> 4805 mod_node_page_state(page_pgdat(p), NR_METADATA_BYTES,
> 4806 -PAGE_SIZE);
4807 /* Once for the page private. */
4808 put_page(page);
4809
4810 /* Once for the alloc_page. */
4811 put_page(page);
4812 } while (index != 0);
4813 }
4814
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