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| author | Jeff Layton <[email protected]> | 2014-02-03 17:13:09 +0000 |
|---|---|---|
| committer | Jeff Layton <[email protected]> | 2014-03-31 12:24:42 +0000 |
| commit | 3fd80cddc6af5ba53244514a61450d4b30a9fb9d (patch) | |
| tree | cbca546dae6bcace6b933ef42130c7d3aa7ab2ca /fs/jbd2/commit.c | |
| parent | locks: make /proc/locks show IS_FILE_PVT locks as type "FLPVT" (diff) | |
| download | kernel-3fd80cddc6af5ba53244514a61450d4b30a9fb9d.tar.gz kernel-3fd80cddc6af5ba53244514a61450d4b30a9fb9d.zip | |
locks: report l_pid as -1 for FL_FILE_PVT locks
FL_FILE_PVT locks are no longer tied to a particular pid, and are
instead inheritable by child processes. Report a l_pid of '-1' for
these sorts of locks since the pid is somewhat meaningless for them.
This precedent comes from FreeBSD. There, POSIX and flock() locks can
conflict with one another. If fcntl(F_GETLK, ...) returns a lock set
with flock() then the l_pid member cannot be a process ID because the
lock is not held by a process as such.
Acked-by: J. Bruce Fields <[email protected]>
Signed-off-by: Jeff Layton <[email protected]>
Diffstat (limited to 'fs/jbd2/commit.c')
0 files changed, 0 insertions, 0 deletions