From: kernel test robot <lkp@intel.com>
To: kbuild@lists.01.org
Subject: Re: [PATCH 12/36] xfs: Pre-calculate per-AG agino geometry
Date: Sun, 05 Dec 2021 12:36:45 +0800 [thread overview]
Message-ID: <202112051217.mRdxC4Nd-lkp@intel.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 19626 bytes --]
CC: llvm(a)lists.linux.dev
CC: kbuild-all(a)lists.01.org
In-Reply-To: <20211203000111.2800982-13-david@fromorbit.com>
References: <20211203000111.2800982-13-david@fromorbit.com>
TO: Dave Chinner <david@fromorbit.com>
TO: linux-xfs(a)vger.kernel.org
Hi Dave,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on xfs-linux/for-next]
[also build test WARNING on v5.16-rc3 next-20211203]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Dave-Chinner/xfs-more-work-towards-shrinking/20211203-080331
base: https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git for-next
:::::: branch date: 2 days ago
:::::: commit date: 2 days ago
config: i386-randconfig-c001-20211203 (https://download.01.org/0day-ci/archive/20211205/202112051217.mRdxC4Nd-lkp(a)intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d30fcadf07ee552f20156ea90be2fdb54cb9cb08)
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://github.com/0day-ci/linux/commit/1970e03e85e3d4f96bdeeb1bc536f025b50737d1
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Dave-Chinner/xfs-more-work-towards-shrinking/20211203-080331
git checkout 1970e03e85e3d4f96bdeeb1bc536f025b50737d1
# save the config file to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 clang-analyzer
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
clang-analyzer warnings: (new ones prefixed by >>)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/ipv6/route.c:4717:35: note: Passing the value 0 via 3rd parameter 'total'
rt6_upper_bound_set(rt, &weight, total);
^~~~~
net/ipv6/route.c:4717:2: note: Calling 'rt6_upper_bound_set'
rt6_upper_bound_set(rt, &weight, total);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/ipv6/route.c:4704:7: note: Calling 'rt6_is_dead'
if (!rt6_is_dead(rt)) {
^~~~~~~~~~~~~~~
net/ipv6/route.c:4676:6: note: Left side of '||' is false
if (rt->fib6_nh->fib_nh_flags & RTNH_F_DEAD ||
^
net/ipv6/route.c:4677:7: note: Left side of '&&' is true
(rt->fib6_nh->fib_nh_flags & RTNH_F_LINKDOWN &&
^
net/ipv6/route.c:4678:7: note: Calling 'ip6_ignore_linkdown'
ip6_ignore_linkdown(rt->fib6_nh->fib_nh_dev)))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/net/addrconf.h:406:10: note: Assuming field 'ignore_routes_with_linkdown' is 0, which participates in a condition later
return !!idev->cnf.ignore_routes_with_linkdown;
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/net/addrconf.h:406:2: note: Returning zero, which participates in a condition later
return !!idev->cnf.ignore_routes_with_linkdown;
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/ipv6/route.c:4678:7: note: Returning from 'ip6_ignore_linkdown'
ip6_ignore_linkdown(rt->fib6_nh->fib_nh_dev)))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/ipv6/route.c:4676:2: note: Taking false branch
if (rt->fib6_nh->fib_nh_flags & RTNH_F_DEAD ||
^
net/ipv6/route.c:4681:2: note: Returning zero, which participates in a condition later
return false;
^~~~~~~~~~~~
net/ipv6/route.c:4704:7: note: Returning from 'rt6_is_dead'
if (!rt6_is_dead(rt)) {
^~~~~~~~~~~~~~~
net/ipv6/route.c:4704:2: note: Taking true branch
if (!rt6_is_dead(rt)) {
^
net/ipv6/route.c:4706:17: note: '__d' initialized to 0
upper_bound = DIV_ROUND_CLOSEST_ULL((u64) (*weight) << 31,
^
include/linux/math.h:102:2: note: expanded from macro 'DIV_ROUND_CLOSEST_ULL'
typeof(divisor) __d = divisor; \
^~~~~~~~~~~~~~~~~~~
net/ipv6/route.c:4706:17: note: The value 0 is assigned to '__base'
upper_bound = DIV_ROUND_CLOSEST_ULL((u64) (*weight) << 31,
^
include/linux/math.h:104:2: note: expanded from macro 'DIV_ROUND_CLOSEST_ULL'
do_div(_tmp, __d); \
^~~~~~~~~~~~~~~~~
arch/x86/include/asm/div64.h:25:2: note: expanded from macro 'do_div'
__base = (base); \
^~~~~~~~~~~~~~~
net/ipv6/route.c:4706:17: note: Left side of '&&' is false
upper_bound = DIV_ROUND_CLOSEST_ULL((u64) (*weight) << 31,
^
include/linux/math.h:104:2: note: expanded from macro 'DIV_ROUND_CLOSEST_ULL'
do_div(_tmp, __d); \
^
arch/x86/include/asm/div64.h:26:35: note: expanded from macro 'do_div'
if (__builtin_constant_p(__base) && is_power_of_2(__base)) { \
^
net/ipv6/route.c:4706:17: note: Assuming '__high' is not equal to 0
upper_bound = DIV_ROUND_CLOSEST_ULL((u64) (*weight) << 31,
^
include/linux/math.h:104:2: note: expanded from macro 'DIV_ROUND_CLOSEST_ULL'
do_div(_tmp, __d); \
^~~~~~~~~~~~~~~~~
arch/x86/include/asm/div64.h:32:7: note: expanded from macro 'do_div'
if (__high) { \
^~~~~~
net/ipv6/route.c:4706:17: note: Taking true branch
upper_bound = DIV_ROUND_CLOSEST_ULL((u64) (*weight) << 31,
^
include/linux/math.h:104:2: note: expanded from macro 'DIV_ROUND_CLOSEST_ULL'
do_div(_tmp, __d); \
^
arch/x86/include/asm/div64.h:32:3: note: expanded from macro 'do_div'
if (__high) { \
^
net/ipv6/route.c:4706:17: note: Division by zero
upper_bound = DIV_ROUND_CLOSEST_ULL((u64) (*weight) << 31,
^
include/linux/math.h:104:2: note: expanded from macro 'DIV_ROUND_CLOSEST_ULL'
do_div(_tmp, __d); \
^~~~~~~~~~~~~~~~~
arch/x86/include/asm/div64.h:33:21: note: expanded from macro 'do_div'
__upper = __high % (__base); \
~~~~~~~^~~~~~~~~~
net/ipv6/route.c:5904:11: warning: Although the value stored to 'count' is used in the enclosing expression, the value is never actually read from 'count' [clang-analyzer-deadcode.DeadStores]
return count += w.count;
^ ~~~~~~~
net/ipv6/route.c:5904:11: note: Although the value stored to 'count' is used in the enclosing expression, the value is never actually read from 'count'
return count += w.count;
^ ~~~~~~~
Suppressed 15 warnings (15 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
10 warnings generated.
>> fs/xfs/libxfs/xfs_inode_buf.c:52:2: warning: Value stored to 'agno' is never read [clang-analyzer-deadcode.DeadStores]
agno = xfs_daddr_to_agno(mp, xfs_buf_daddr(bp));
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/xfs/libxfs/xfs_inode_buf.c:52:2: note: Value stored to 'agno' is never read
agno = xfs_daddr_to_agno(mp, xfs_buf_daddr(bp));
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Suppressed 9 warnings (8 in non-user code, 1 with check filters).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
8 warnings generated.
Suppressed 8 warnings (8 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
8 warnings generated.
Suppressed 8 warnings (8 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
9 warnings generated.
fs/xfs/libxfs/xfs_rmap.c:244:2: warning: 4th function call argument is an uninitialized value [clang-analyzer-core.CallAndMessage]
xfs_warn(mp,
^
fs/xfs/libxfs/xfs_rmap.c:2677:9: note: Assuming the condition is false
ASSERT(XFS_RMAP_NON_INODE_OWNER(owner) ||
^
fs/xfs/libxfs/xfs_format.h:1433:43: note: expanded from macro 'XFS_RMAP_NON_INODE_OWNER'
#define XFS_RMAP_NON_INODE_OWNER(owner) (!!((owner) & (1ULL << 63)))
^
fs/xfs/xfs_linux.h:214:10: note: expanded from macro 'ASSERT'
(likely(expr) ? (void)0 : asswarn(NULL, #expr, __FILE__, __LINE__))
~~~~~~~^~~~~
include/linux/compiler.h:77:40: note: expanded from macro 'likely'
# define likely(x) __builtin_expect(!!(x), 1)
^
fs/xfs/libxfs/xfs_rmap.c:2677:41: note: Left side of '||' is true
ASSERT(XFS_RMAP_NON_INODE_OWNER(owner) ||
^
fs/xfs/libxfs/xfs_rmap.c:2677:2: note: '?' condition is true
ASSERT(XFS_RMAP_NON_INODE_OWNER(owner) ||
^
fs/xfs/xfs_linux.h:214:3: note: expanded from macro 'ASSERT'
(likely(expr) ? (void)0 : asswarn(NULL, #expr, __FILE__, __LINE__))
^
include/linux/compiler.h:77:20: note: expanded from macro 'likely'
# define likely(x) __builtin_expect(!!(x), 1)
^
fs/xfs/libxfs/xfs_rmap.c:2682:6: note: Assuming 'error' is 0
if (error)
^~~~~
fs/xfs/libxfs/xfs_rmap.c:2682:2: note: Taking false branch
if (error)
^
fs/xfs/libxfs/xfs_rmap.c:2684:6: note: Assuming 'has_record' is not equal to 0
if (!has_record) {
^~~~~~~~~~~
fs/xfs/libxfs/xfs_rmap.c:2684:2: note: Taking false branch
if (!has_record) {
^
fs/xfs/libxfs/xfs_rmap.c:2689:10: note: Calling 'xfs_rmap_get_rec'
error = xfs_rmap_get_rec(cur, &irec, &has_record);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/xfs/libxfs/xfs_rmap.c:209:6: note: Assuming 'error' is 0
if (error || !*stat)
^~~~~
fs/xfs/libxfs/xfs_rmap.c:209:6: note: Left side of '||' is false
fs/xfs/libxfs/xfs_rmap.c:209:15: note: Assuming the condition is false
if (error || !*stat)
^~~~~~
fs/xfs/libxfs/xfs_rmap.c:209:2: note: Taking false branch
if (error || !*stat)
^
fs/xfs/libxfs/xfs_rmap.c:212:6: note: Calling 'xfs_rmap_btrec_to_irec'
if (xfs_rmap_btrec_to_irec(rec, irec))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/xfs/libxfs/xfs_rmap.c:190:9: note: Calling 'xfs_rmap_irec_offset_unpack'
return xfs_rmap_irec_offset_unpack(be64_to_cpu(rec->rmap.rm_offset),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/xfs/libxfs/xfs_rmap.h:70:6: note: Assuming the condition is true
if (offset & ~(XFS_RMAP_OFF_MASK | XFS_RMAP_OFF_FLAGS))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/xfs/libxfs/xfs_rmap.h:70:2: note: Taking true branch
if (offset & ~(XFS_RMAP_OFF_MASK | XFS_RMAP_OFF_FLAGS))
^
fs/xfs/libxfs/xfs_rmap.h:71:3: note: Returning without writing to 'irec->rm_flags'
return -EFSCORRUPTED;
^
fs/xfs/libxfs/xfs_rmap.h:71:3: note: Returning the value -117, which participates in a condition later
return -EFSCORRUPTED;
^~~~~~~~~~~~~~~~~~~~
fs/xfs/libxfs/xfs_rmap.c:190:9: note: Returning from 'xfs_rmap_irec_offset_unpack'
return xfs_rmap_irec_offset_unpack(be64_to_cpu(rec->rmap.rm_offset),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/xfs/libxfs/xfs_rmap.c:190:2: note: Returning without writing to 'irec->rm_flags'
return xfs_rmap_irec_offset_unpack(be64_to_cpu(rec->rmap.rm_offset),
^
fs/xfs/libxfs/xfs_rmap.c:190:2: note: Returning the value -117, which participates in a condition later
return xfs_rmap_irec_offset_unpack(be64_to_cpu(rec->rmap.rm_offset),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/xfs/libxfs/xfs_rmap.c:212:6: note: Returning from 'xfs_rmap_btrec_to_irec'
if (xfs_rmap_btrec_to_irec(rec, irec))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/xfs/libxfs/xfs_rmap.c:212:2: note: Taking true branch
if (xfs_rmap_btrec_to_irec(rec, irec))
^
fs/xfs/libxfs/xfs_rmap.c:213:3: note: Control jumps to line 241
vim +/agno +52 fs/xfs/libxfs/xfs_inode_buf.c
f0e28280629e0e fs/xfs/libxfs/xfs_inode_buf.c Jeff Layton 2017-12-11 23
d8914002a03913 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-27 24 /*
d8914002a03913 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-27 25 * If we are doing readahead on an inode buffer, we might be in log recovery
d8914002a03913 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-27 26 * reading an inode allocation buffer that hasn't yet been replayed, and hence
d8914002a03913 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-27 27 * has not had the inode cores stamped into it. Hence for readahead, the buffer
d8914002a03913 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-27 28 * may be potentially invalid.
d8914002a03913 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-27 29 *
b79f4a1c68bb99 fs/xfs/libxfs/xfs_inode_buf.c Dave Chinner 2016-01-12 30 * If the readahead buffer is invalid, we need to mark it with an error and
b79f4a1c68bb99 fs/xfs/libxfs/xfs_inode_buf.c Dave Chinner 2016-01-12 31 * clear the DONE status of the buffer so that a followup read will re-read it
b79f4a1c68bb99 fs/xfs/libxfs/xfs_inode_buf.c Dave Chinner 2016-01-12 32 * from disk. We don't report the error otherwise to avoid warnings during log
06734e3c95a34e fs/xfs/libxfs/xfs_inode_buf.c Keyur Patel 2020-06-29 33 * recovery and we don't get unnecessary panics on debug kernels. We use EIO here
b79f4a1c68bb99 fs/xfs/libxfs/xfs_inode_buf.c Dave Chinner 2016-01-12 34 * because all we want to do is say readahead failed; there is no-one to report
b79f4a1c68bb99 fs/xfs/libxfs/xfs_inode_buf.c Dave Chinner 2016-01-12 35 * the error to, so this will distinguish it from a non-ra verifier failure.
06734e3c95a34e fs/xfs/libxfs/xfs_inode_buf.c Keyur Patel 2020-06-29 36 * Changes to this readahead error behaviour also need to be reflected in
7d6a13f023567d fs/xfs/libxfs/xfs_inode_buf.c Dave Chinner 2016-01-12 37 * xfs_dquot_buf_readahead_verify().
d8914002a03913 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-27 38 */
1fd7115eda5661 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-12 39 static void
1fd7115eda5661 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-12 40 xfs_inode_buf_verify(
d8914002a03913 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-27 41 struct xfs_buf *bp,
d8914002a03913 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-27 42 bool readahead)
1fd7115eda5661 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-12 43 {
dbd329f1e44ed4 fs/xfs/libxfs/xfs_inode_buf.c Christoph Hellwig 2019-06-28 44 struct xfs_mount *mp = bp->b_mount;
6a96c5650568a2 fs/xfs/libxfs/xfs_inode_buf.c Darrick J. Wong 2018-03-23 45 xfs_agnumber_t agno;
1fd7115eda5661 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-12 46 int i;
1fd7115eda5661 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-12 47 int ni;
1fd7115eda5661 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-12 48
1fd7115eda5661 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-12 49 /*
1fd7115eda5661 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-12 50 * Validate the magic number and version of every inode in the buffer
1fd7115eda5661 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-12 51 */
04fcad80cd0687 fs/xfs/libxfs/xfs_inode_buf.c Dave Chinner 2021-08-18 @52 agno = xfs_daddr_to_agno(mp, xfs_buf_daddr(bp));
1fd7115eda5661 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-12 53 ni = XFS_BB_TO_FSB(mp, bp->b_length) * mp->m_sb.sb_inopblock;
1fd7115eda5661 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-12 54 for (i = 0; i < ni; i++) {
de38db7239c4bd fs/xfs/libxfs/xfs_inode_buf.c Christoph Hellwig 2021-10-11 55 struct xfs_dinode *dip;
6a96c5650568a2 fs/xfs/libxfs/xfs_inode_buf.c Darrick J. Wong 2018-03-23 56 xfs_agino_t unlinked_ino;
de38db7239c4bd fs/xfs/libxfs/xfs_inode_buf.c Christoph Hellwig 2021-10-11 57 int di_ok;
1fd7115eda5661 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-12 58
88ee2df7f25911 fs/xfs/libxfs/xfs_inode_buf.c Christoph Hellwig 2015-06-22 59 dip = xfs_buf_offset(bp, (i << mp->m_sb.sb_inodelog));
6a96c5650568a2 fs/xfs/libxfs/xfs_inode_buf.c Darrick J. Wong 2018-03-23 60 unlinked_ino = be32_to_cpu(dip->di_next_unlinked);
15baadf72cedc2 fs/xfs/libxfs/xfs_inode_buf.c Darrick J. Wong 2019-02-16 61 di_ok = xfs_verify_magic16(bp, dip->di_magic) &&
cf28e17c9186c8 fs/xfs/libxfs/xfs_inode_buf.c Dave Chinner 2021-08-18 62 xfs_dinode_good_version(mp, dip->di_version) &&
1970e03e85e3d4 fs/xfs/libxfs/xfs_inode_buf.c Dave Chinner 2021-12-03 63 xfs_verify_agino_or_null(bp->b_pag, unlinked_ino);
1fd7115eda5661 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-12 64 if (unlikely(XFS_TEST_ERROR(!di_ok, mp,
9e24cfd044853e fs/xfs/libxfs/xfs_inode_buf.c Darrick J. Wong 2017-06-20 65 XFS_ERRTAG_ITOBP_INOTOBP))) {
d8914002a03913 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-27 66 if (readahead) {
d8914002a03913 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-27 67 bp->b_flags &= ~XBF_DONE;
b79f4a1c68bb99 fs/xfs/libxfs/xfs_inode_buf.c Dave Chinner 2016-01-12 68 xfs_buf_ioerror(bp, -EIO);
d8914002a03913 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-27 69 return;
d8914002a03913 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-27 70 }
d8914002a03913 fs/xfs/xfs_inode_buf.c Dave Chinner 2013-08-27 71
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
next reply other threads:[~2021-12-05 4:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-05 4:36 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2021-12-03 0:00 [RFC] [PATCH 00/36] xfs: more work towards shrinking Dave Chinner
2021-12-03 0:00 ` [PATCH 12/36] xfs: Pre-calculate per-AG agino geometry Dave Chinner
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