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xfs: add size update tracepoint to IO completion

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For improving insight into IO completion behaviour.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
This commit is contained in:
Dave Chinner 2011-07-18 03:40:19 +00:00 committed by Alex Elder
parent af3e40228f
commit 55fb25d5b3
2 changed files with 9 additions and 4 deletions
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1
fs/xfs/linux-2.6/xfs_aops.c
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@ -181,6 +181,7 @@ xfs_setfilesize(
isize = xfs_ioend_new_eof(ioend);
if (isize) {
trace_xfs_setfilesize(ip, ioend->io_offset, ioend->io_size);
ip->i_d.di_size = isize;
xfs_mark_inode_dirty(ip);
}

12
fs/xfs/linux-2.6/xfs_trace.h
View file

@ -998,7 +998,8 @@ DECLARE_EVENT_CLASS(xfs_simple_io_class,
TP_STRUCT__entry(
__field(dev_t, dev)
__field(xfs_ino_t, ino)
__field(loff_t, size)
__field(loff_t, isize)
__field(loff_t, disize)
__field(loff_t, new_size)
__field(loff_t, offset)
__field(size_t, count)
@ -1006,16 +1007,18 @@ DECLARE_EVENT_CLASS(xfs_simple_io_class,
TP_fast_assign(
__entry->dev = VFS_I(ip)->i_sb->s_dev;
__entry->ino = ip->i_ino;
__entry->size = ip->i_d.di_size;
__entry->isize = ip->i_size;
__entry->disize = ip->i_d.di_size;
__entry->new_size = ip->i_new_size;
__entry->offset = offset;
__entry->count = count;
),
TP_printk("dev %d:%d ino 0x%llx size 0x%llx new_size 0x%llx "
TP_printk("dev %d:%d ino 0x%llx isize 0x%llx disize 0x%llx new_size 0x%llx "
"offset 0x%llx count %zd",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->ino,
__entry->size,
__entry->isize,
__entry->disize,
__entry->new_size,
__entry->offset,
__entry->count)
@ -1028,6 +1031,7 @@ DEFINE_EVENT(xfs_simple_io_class, name, \
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);
DECLARE_EVENT_CLASS(xfs_itrunc_class,
TP_PROTO(struct xfs_inode *ip, xfs_fsize_t new_size),