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Commit 0a50f162 authored Oct 12, 2015 by Brian Foster Committed by Dave Chinner Oct 12, 2015

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: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave 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),