Commit 38899f80 authored by Darrick J. Wong's avatar Darrick J. Wong
Browse files

xfs: add a tracepoint for blockgc scans 



Add some tracepoints so that we can observe when the speculative
preallocation garbage collector runs.

Signed-off-by: default avatarDarrick J. Wong <djwong@kernel.org>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarBrian Foster <bfoster@redhat.com>
parent 758303d1

fs/xfs/xfs_ioctl.c

+2 −0
Original line number Diff line number Diff line
@@ -2339,6 +2339,8 @@ xfs_file_ioctl( 
		if (error)

			return error;



		trace_xfs_ioc_free_eofblocks(mp, &keofb, _RET_IP_);



		sb_start_write(mp->m_super);

		error = xfs_icache_free_eofblocks(mp, &keofb);

		sb_end_write(mp->m_super);

fs/xfs/xfs_trace.c

+1 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ 
#include "xfs_filestream.h"

#include "xfs_fsmap.h"

#include "xfs_btree_staging.h"

#include "xfs_icache.h"



/*

 * We include this last to have the helpers above available for the trace

fs/xfs/xfs_trace.h

+41 −0
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ struct xfs_trans_res; 
struct xfs_inobt_rec_incore;

union xfs_btree_ptr;

struct xfs_dqtrx;

struct xfs_eofblocks;



#define XFS_ATTR_FILTER_FLAGS \

	{ XFS_ATTR_ROOT,	"ROOT" }, \
@@ -3888,6 +3889,46 @@ DEFINE_EVENT(xfs_timestamp_range_class, name, \ 
DEFINE_TIMESTAMP_RANGE_EVENT(xfs_inode_timestamp_range);

DEFINE_TIMESTAMP_RANGE_EVENT(xfs_quota_expiry_range);



DECLARE_EVENT_CLASS(xfs_eofblocks_class,

	TP_PROTO(struct xfs_mount *mp, struct xfs_eofblocks *eofb,

		 unsigned long caller_ip),

	TP_ARGS(mp, eofb, caller_ip),

	TP_STRUCT__entry(

		__field(dev_t, dev)

		__field(__u32, flags)

		__field(uint32_t, uid)

		__field(uint32_t, gid)

		__field(prid_t, prid)

		__field(__u64, min_file_size)

		__field(unsigned long, caller_ip)

	),

	TP_fast_assign(

		__entry->dev = mp->m_super->s_dev;

		__entry->flags = eofb ? eofb->eof_flags : 0;

		__entry->uid = eofb ? from_kuid(mp->m_super->s_user_ns,

						eofb->eof_uid) : 0;

		__entry->gid = eofb ? from_kgid(mp->m_super->s_user_ns,

						eofb->eof_gid) : 0;

		__entry->prid = eofb ? eofb->eof_prid : 0;

		__entry->min_file_size = eofb ? eofb->eof_min_file_size : 0;

		__entry->caller_ip = caller_ip;

	),

	TP_printk("dev %d:%d flags 0x%x uid %u gid %u prid %u minsize %llu caller %pS",

		  MAJOR(__entry->dev), MINOR(__entry->dev),

		  __entry->flags,

		  __entry->uid,

		  __entry->gid,

		  __entry->prid,

		  __entry->min_file_size,

		  (char *)__entry->caller_ip)

);

#define DEFINE_EOFBLOCKS_EVENT(name)	\

DEFINE_EVENT(xfs_eofblocks_class, name,	\

	TP_PROTO(struct xfs_mount *mp, struct xfs_eofblocks *eofb, \

		 unsigned long caller_ip), \

	TP_ARGS(mp, eofb, caller_ip))

DEFINE_EOFBLOCKS_EVENT(xfs_ioc_free_eofblocks);



#endif /* _TRACE_XFS_H */



#undef TRACE_INCLUDE_PATH