Commit 0a50f162 authored by Brian Foster's avatar Brian Foster Committed by Dave Chinner
Browse files

xfs: add an xfs_zero_eof() tracepoint 



Add a tracepoint in xfs_zero_eof() to facilitate tracking and debugging
EOF zeroing events. This has proven useful in the context of other
direct I/O tracepoints to ensure EOF zeroing occurs within appropriate
file ranges.

Signed-off-by: default avatarBrian Foster <bfoster@redhat.com>
Reviewed-by: default avatarDave Chinner <dchinner@redhat.com>
Signed-off-by: default avatarDave Chinner <david@fromorbit.com>
parent 3136e8bb

fs/xfs/xfs_file.c

+2 −0
Original line number Diff line number Diff line
@@ -482,6 +482,8 @@ xfs_zero_eof( 
	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));

	ASSERT(offset > isize);



	trace_xfs_zero_eof(ip, isize, offset - isize);



	/*

	 * First handle zeroing the block on which isize resides.

	 *

fs/xfs/xfs_trace.h

+1 −0
Original line number Diff line number Diff line
@@ -1312,6 +1312,7 @@ DEFINE_SIMPLE_IO_EVENT(xfs_delalloc_enospc); 
DEFINE_SIMPLE_IO_EVENT(xfs_unwritten_convert);

DEFINE_SIMPLE_IO_EVENT(xfs_get_blocks_notfound);

DEFINE_SIMPLE_IO_EVENT(xfs_setfilesize);

DEFINE_SIMPLE_IO_EVENT(xfs_zero_eof);



DECLARE_EVENT_CLASS(xfs_itrunc_class,

	TP_PROTO(struct xfs_inode *ip, xfs_fsize_t new_size),

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