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filelock: add a tracepoint to start of break_lease()

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...mostly to show the LEASE_BREAK_* flags.

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Link: https://patch.msgid.link/20260428-dir-deleg-v3-3-5a0780ba9def@kernel.org
Acked-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Jeff Layton 2026-04-28 08:09:47 +01:00 committed by Christian Brauner
parent 24cbf43337
commit e39026a86b
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2 changed files with 35 additions and 0 deletions
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2
fs/locks.c
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@ -1651,6 +1651,8 @@ int __break_lease(struct inode *inode, unsigned int flags)
bool want_write = !(flags & LEASE_BREAK_OPEN_RDONLY);
int error = 0;
trace_break_lease(inode, flags);
type = break_lease_flags_to_type(flags);
if (!type)
return -EINVAL;

33
include/trace/events/filelock.h
View File

@ -120,6 +120,39 @@ DEFINE_EVENT(filelock_lock, flock_lock_inode,
TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
TP_ARGS(inode, fl, ret));
#define show_lease_break_flags(val) \
__print_flags(val, "|", \
{ LEASE_BREAK_LEASE, "LEASE" }, \
{ LEASE_BREAK_DELEG, "DELEG" }, \
{ LEASE_BREAK_LAYOUT, "LAYOUT" }, \
{ LEASE_BREAK_NONBLOCK, "NONBLOCK" }, \
{ LEASE_BREAK_OPEN_RDONLY, "OPEN_RDONLY" }, \
{ LEASE_BREAK_DIR_CREATE, "DIR_CREATE" }, \
{ LEASE_BREAK_DIR_DELETE, "DIR_DELETE" }, \
{ LEASE_BREAK_DIR_RENAME, "DIR_RENAME" })
TRACE_EVENT(break_lease,
TP_PROTO(struct inode *inode, unsigned int flags),
TP_ARGS(inode, flags),
TP_STRUCT__entry(
__field(unsigned long, i_ino)
__field(dev_t, s_dev)
__field(unsigned int, flags)
),
TP_fast_assign(
__entry->s_dev = inode->i_sb->s_dev;
__entry->i_ino = inode->i_ino;
__entry->flags = flags;
),
TP_printk("dev=0x%x:0x%x ino=0x%lx flags=%s",
MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
__entry->i_ino, show_lease_break_flags(__entry->flags))
);
DECLARE_EVENT_CLASS(filelock_lease,
TP_PROTO(struct inode *inode, struct file_lease *fl),