freebsd-nq/scripts/commitcheck.sh
Matt Ahrens 5d43cc9a59 OpenZFS 9689 - zfs range lock code should not be zpl-specific
The ZFS range locking code in zfs_rlock.c/h depends on ZPL-specific
data structures, specifically znode_t.  However, it's also used by
the ZVOL code, which uses a "dummy" znode_t to pass to the range
locking code.

We should clean this up so that the range locking code is generic
and can be used equally by ZPL and ZVOL, and also can be used by
future consumers that may need to run in userland (libzpool) as
well as the kernel.

Porting notes:
* Added missing sys/avl.h include to sys/zfs_rlock.h.
* Removed 'dbuf is within the locked range' ASSERTs from dmu_sync().
  This was needed because ztest does not yet use a locked_range_t.
* Removed "Approved by:" tag requirement from OpenZFS commit
  check to prevent needless warnings when integrating changes
  which has not been merged to illumos.
* Reverted free_list range lock changes which were originally
  needed to defer the cv_destroy() which was called immediately
  after cv_broadcast().  With d2733258 this should be safe but
  if not we may need to reintroduce this logic.
* Reverts: The following two commits were reverted and squashed in
  to this change in order to make it easier to apply OpenZFS 9689.
  - d88895a0, which removed the dummy znode from zvol_state
  - e3a07cd0, which updated ztest to use range locks
* Preserved optimized rangelock comparison function.  Preserved the
  rangelock free list.  The cv_destroy() function will block waiting
  for all processes in cv_wait() to be scheduled and drop their
  reference.  This is done to ensure it's safe to free the condition
  variable.  However, blocking while holding the rl->rl_lock mutex
  can result in a deadlock on Linux.  A free list is introduced to
  defer the cv_destroy() and kmem_free() until after the mutex is
  released.

Authored by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Brad Lewis <brad.lewis@delphix.com>
Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>

OpenZFS-issue: https://illumos.org/issues/9689
OpenZFS-commit: https://github.com/openzfs/openzfs/pull/680
External-issue: DLPX-58662
Closes #7980
2018-10-11 10:19:33 -07:00

219 lines
4.9 KiB
Bash
Executable File

#!/bin/bash
REF="HEAD"
# test a url
function test_url()
{
url="$1"
if ! curl --output /dev/null --max-time 60 \
--silent --head --fail "$url" ; then
echo "\"$url\" is unreachable"
return 1
fi
return 0
}
# test commit body for length
# lines containing urls are exempt for the length limit.
function test_commit_bodylength()
{
length="72"
body=$(git log -n 1 --pretty=%b "$REF" | grep -Ev "http(s)*://" | grep -E -m 1 ".{$((length + 1))}")
if [ -n "$body" ]; then
echo "error: commit message body contains line over ${length} characters"
return 1
fi
return 0
}
# check for a tagged line
function check_tagged_line()
{
regex='^\s*'"$1"':\s[[:print:]]+\s<[[:graph:]]+>$'
foundline=$(git log -n 1 "$REF" | grep -E -m 1 "$regex")
if [ -z "$foundline" ]; then
echo "error: missing \"$1\""
return 1
fi
return 0
}
# check for a tagged line and check that the link is valid
function check_tagged_line_with_url()
{
regex='^\s*'"$1"':\s\K([[:graph:]]+)$'
foundline=$(git log -n 1 "$REF" | grep -Po "$regex")
if [ -z "$foundline" ]; then
echo "error: missing \"$1\""
return 1
fi
OLDIFS=$IFS
IFS=$'\n'
for url in $(echo -e "$foundline"); do
if ! test_url "$url"; then
return 1
fi
done
IFS=$OLDIFS
return 0
}
# check commit message for a normal commit
function new_change_commit()
{
error=0
# subject is not longer than 50 characters
long_subject=$(git log -n 1 --pretty=%s "$REF" | grep -E -m 1 '.{51}')
if [ -n "$long_subject" ]; then
echo "error: commit subject over 50 characters"
error=1
fi
# need a signed off by
if ! check_tagged_line "Signed-off-by" ; then
error=1
fi
# ensure that no lines in the body of the commit are over 72 characters
if ! test_commit_bodylength ; then
error=1
fi
return $error
}
function is_openzfs_port()
{
# subject starts with OpenZFS means it's an openzfs port
subject=$(git log -n 1 --pretty=%s "$REF" | grep -E -m 1 '^OpenZFS')
if [ -n "$subject" ]; then
return 0
fi
return 1
}
function openzfs_port_commit()
{
error=0
# subject starts with OpenZFS dddd
subject=$(git log -n 1 --pretty=%s "$REF" | grep -E -m 1 '^OpenZFS [[:digit:]]+(, [[:digit:]]+)* - ')
if [ -z "$subject" ]; then
echo "error: OpenZFS patch ports must have a subject line that starts with \"OpenZFS dddd - \""
error=1
fi
# need an authored by line
if ! check_tagged_line "Authored by" ; then
error=1
fi
# need a reviewed by line
if ! check_tagged_line "Reviewed by" ; then
error=1
fi
# need ported by line
if ! check_tagged_line "Ported-by" ; then
error=1
fi
# need a url to openzfs commit and it should be valid
if ! check_tagged_line_with_url "OpenZFS-commit" ; then
error=1
fi
# need a url to illumos issue and it should be valid
if ! check_tagged_line_with_url "OpenZFS-issue" ; then
error=1
fi
return $error
}
function is_coverity_fix()
{
# subject starts with Fix coverity defects means it's a coverity fix
subject=$(git log -n 1 --pretty=%s "$REF" | grep -E -m 1 '^Fix coverity defects')
if [ -n "$subject" ]; then
return 0
fi
return 1
}
function coverity_fix_commit()
{
error=0
# subject starts with Fix coverity defects: CID dddd, dddd...
subject=$(git log -n 1 --pretty=%s "$REF" |
grep -E -m 1 'Fix coverity defects: CID [[:digit:]]+(, [[:digit:]]+)*')
if [ -z "$subject" ]; then
echo "error: Coverity defect fixes must have a subject line that starts with \"Fix coverity defects: CID dddd\""
error=1
fi
# need a signed off by
if ! check_tagged_line "Signed-off-by" ; then
error=1
fi
# test each summary line for the proper format
OLDIFS=$IFS
IFS=$'\n'
for line in $(git log -n 1 --pretty=%b "$REF" | grep -E '^CID'); do
echo "$line" | grep -E '^CID [[:digit:]]+: ([[:graph:]]+|[[:space:]])+ \(([[:upper:]]|\_)+\)' > /dev/null
# shellcheck disable=SC2181
if [[ $? -ne 0 ]]; then
echo "error: commit message has an improperly formatted CID defect line"
error=1
fi
done
IFS=$OLDIFS
# ensure that no lines in the body of the commit are over 72 characters
if ! test_commit_bodylength; then
error=1
fi
return $error
}
if [ -n "$1" ]; then
REF="$1"
fi
# if openzfs port, test against that
if is_openzfs_port; then
if ! openzfs_port_commit ; then
exit 1
else
exit 0
fi
fi
# if coverity fix, test against that
if is_coverity_fix; then
if ! coverity_fix_commit; then
exit 1
else
exit 0
fi
fi
# have a normal commit
if ! new_change_commit ; then
exit 1
fi
exit 0