tree: https://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git
for-next
head: a20050c14edf19add5a9588cb196bb00aa410650
commit: a20050c14edf19add5a9588cb196bb00aa410650 [11/11] gfs2: Add read/write
page 'fault_stats'
config: i386-randconfig-a011
(https://download.01.org/0day-ci/archive/20220317/202203170509.i1rwdoa0-...@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project
a6ec1e3d798f8eab43fb3a91028c6ab04e115fcb)
reproduce (this is a W=1 build):
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
#
https://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git/commit/?id=a20050c14edf19add5a9588cb196bb00aa410650
git remote add gfs2
https://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git
git fetch --no-tags gfs2 for-next
git checkout a20050c14edf19add5a9588cb196bb00aa410650
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1
O=build_dir ARCH=i386 SHELL=/bin/bash fs/gfs2/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>
All warnings (new ones prefixed by >>):
>> fs/gfs2/file.c:796:10: warning: comparison of distinct pointer types
>> ('typeof (size) *' (aka 'unsigned int *') and 'typeof (nr_dirtied * ((1UL)
>> << 12)) *' (aka 'unsigned long *')) [-Wcompare-distinct-pointer-types]
size = min(size, nr_dirtied * PAGE_SIZE);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:45:19: note: expanded from macro 'min'
#define min(x, y) __careful_cmp(x, y, <)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:36:24: note: expanded from macro '__careful_cmp'
__builtin_choose_expr(__safe_cmp(x, y), \
^~~~~~~~~~~~~~~~
include/linux/minmax.h:26:4: note: expanded from macro '__safe_cmp'
(__typecheck(x, y) && __no_side_effects(x, y))
^~~~~~~~~~~~~~~~~
include/linux/minmax.h:20:28: note: expanded from macro '__typecheck'
(!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~
1 warning generated.
vim +796 fs/gfs2/file.c
772
773 static inline bool should_fault_in_pages(ssize_t ret, struct iov_iter
*i,
774 size_t *prev_count,
775 size_t *window_size)
776 {
777 size_t count = iov_iter_count(i);
778 size_t size, offs;
779
780 if (likely(!count))
781 return false;
782 if (ret <= 0 && ret != -EFAULT)
783 return false;
784 if (!iter_is_iovec(i))
785 return false;
786
787 size = PAGE_SIZE;
788 offs = offset_in_page(i->iov[0].iov_base + i->iov_offset);
789 if (*prev_count != count || !*window_size) {
790 int nr_dirtied;
791
792 size = ALIGN(offs + count, PAGE_SIZE);
793 size = min_t(size_t, size, SZ_1M);
794 nr_dirtied = max(current->nr_dirtied_pause -
795 current->nr_dirtied, 8);
> 796 size = min(size, nr_dirtied * PAGE_SIZE);
797 }
798
799 *prev_count = count;
800 *window_size = size - offs;
801 return true;
802 }
803
---
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https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
