diff options
| author | Jeff Layton <jlayton@redhat.com> | 2014-02-03 12:13:09 -0500 |
|---|---|---|
| committer | Jeff Layton <jlayton@redhat.com> | 2014-03-31 08:24:42 -0400 |
| commit | c918d42a27a9be0d78be490997d16d79cd5b9193 (patch) | |
| tree | 67008d976453bfdd72280b0c5cddd3e07000cd4d | |
| parent | 78ed8a13382b1354e95d0f2233577eba15cb8171 (diff) | |
| download | linux-c918d42a27a9be0d78be490997d16d79cd5b9193.tar.bz2 | |
locks: make /proc/locks show IS_FILE_PVT locks as type "FLPVT"
In a later patch, we'll be adding a new type of lock that's owned by
the struct file instead of the files_struct. Those sorts of locks
will be flagged with a new FL_FILE_PVT flag.
Report these types of locks as "FLPVT" in /proc/locks to distinguish
them from "classic" POSIX locks.
Acked-by: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
| -rw-r--r-- | fs/locks.c | 11 | ||||
| -rw-r--r-- | include/linux/fs.h | 1 |
2 files changed, 10 insertions, 2 deletions
diff --git a/fs/locks.c b/fs/locks.c index 4d4e790150e0..0e1f0df8de12 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -135,6 +135,7 @@ #define IS_POSIX(fl) (fl->fl_flags & FL_POSIX) #define IS_FLOCK(fl) (fl->fl_flags & FL_FLOCK) #define IS_LEASE(fl) (fl->fl_flags & (FL_LEASE|FL_DELEG)) +#define IS_FILE_PVT(fl) (fl->fl_flags & FL_FILE_PVT) static bool lease_breaking(struct file_lock *fl) { @@ -2313,8 +2314,14 @@ static void lock_get_status(struct seq_file *f, struct file_lock *fl, seq_printf(f, "%lld:%s ", id, pfx); if (IS_POSIX(fl)) { - seq_printf(f, "%6s %s ", - (fl->fl_flags & FL_ACCESS) ? "ACCESS" : "POSIX ", + if (fl->fl_flags & FL_ACCESS) + seq_printf(f, "ACCESS"); + else if (IS_FILE_PVT(fl)) + seq_printf(f, "FLPVT "); + else + seq_printf(f, "POSIX "); + + seq_printf(f, " %s ", (inode == NULL) ? "*NOINODE*" : mandatory_lock(inode) ? "MANDATORY" : "ADVISORY "); } else if (IS_FLOCK(fl)) { diff --git a/include/linux/fs.h b/include/linux/fs.h index 7527d96913d3..5ddeb8de5e77 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -888,6 +888,7 @@ static inline int file_check_writeable(struct file *filp) #define FL_SLEEP 128 /* A blocking lock */ #define FL_DOWNGRADE_PENDING 256 /* Lease is being downgraded */ #define FL_UNLOCK_PENDING 512 /* Lease is being broken */ +#define FL_FILE_PVT 1024 /* lock is private to the file */ /* * Special return value from posix_lock_file() and vfs_lock_file() for |