diff options
| author | John Gallagher <[email protected]> | 2018-09-26 11:08:12 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2018-09-26 11:08:12 -0700 |
| commit | d12614521a307c709778e5f7f91ae6085f63f9e0 (patch) | |
| tree | 130e6dde286d0da760612a7f4d9595a660777011 /configure.ac | |
| parent | 3ed2fbcc1ce36fdc516aa11848692a4e4c4a2bc0 (diff) | |
Fixes for procfs files backed by linked lists
There are some issues with the way the seq_file interface is implemented
for kstats backed by linked lists (zfs_dbgmsgs and certain per-pool
debugging info):
* We don't account for the fact that seq_file sometimes visits a node
multiple times, which results in missing messages when read through
procfs.
* We don't keep separate state for each reader of a file, so concurrent
readers will receive incorrect results.
* We don't account for the fact that entries may have been removed from
the list between read syscalls, so reading from these files in procfs
can cause the system to crash.
This change fixes these issues and adds procfs_list, a wrapper around a
linked list which abstracts away the details of implementing the
seq_file interface for a list and exposing the contents of the list
through procfs.
Reviewed by: Don Brady <[email protected]>
Reviewed-by: Serapheim Dimitropoulos <[email protected]>
Reviewed by: Brad Lewis <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: John Gallagher <[email protected]>
External-issue: LX-1211
Closes #7819
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index 18d91b359..301258e7f 100644 --- a/configure.ac +++ b/configure.ac @@ -283,7 +283,6 @@ AC_CONFIG_FILES([ tests/zfs-tests/tests/functional/inheritance/Makefile tests/zfs-tests/tests/functional/inuse/Makefile tests/zfs-tests/tests/functional/io/Makefile - tests/zfs-tests/tests/functional/kstat/Makefile tests/zfs-tests/tests/functional/large_files/Makefile tests/zfs-tests/tests/functional/largest_pool/Makefile tests/zfs-tests/tests/functional/link_count/Makefile @@ -301,6 +300,7 @@ AC_CONFIG_FILES([ tests/zfs-tests/tests/functional/pool_checkpoint/Makefile tests/zfs-tests/tests/functional/poolversion/Makefile tests/zfs-tests/tests/functional/privilege/Makefile + tests/zfs-tests/tests/functional/procfs/Makefile tests/zfs-tests/tests/functional/projectquota/Makefile tests/zfs-tests/tests/functional/pyzfs/Makefile tests/zfs-tests/tests/functional/quota/Makefile |