LTP fcntl tests (fcntl11 fcntl14 fcntl17 fcntl19 fcntl20 fcntl21) have been
failing for NFSv4 mounts due to an unexpected l_pid. What follows are some
fixups:
v2: - Rebase onto linux-next
- Revert back to using the stack in locks_mandatory_area(), and fixup
patch description for 1/3
v3: - The lkp-robot found some serious per_thread_ops performance
regressions for v1 and v2, so this version changes things around to not
acquire a reference to struct pid in fl_nspid for every lock. Instead,
it drops fl_nspid altogether, and defers the lookup of the
namespace-translated pid until it actually needed.
Benjamin Coddington (3):
fs/locks: Use allocation rather than the stack in fcntl_getlk()
fs/locks: Remove fl_nspid
fs/locks: Use fs-specific l_pid for remote locks
fs/locks.c | 122 +++++++++++++++++++++++++++++++++--------------------
include/linux/fs.h | 2 +-
2 files changed, 78 insertions(+), 46 deletions(-)
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2.9.3
