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xfs: fix uninitialized field in rtbitmap fsmap backend

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Initialize the extent count field of the high key so that when we use
the high key to synthesize an 'unknown owner' record (i.e. used space
record) at the end of the queried range we have a field with which to
compute rm_blockcount.  This is not strictly necessary because the
synthesizer never uses the rm_blockcount field, but we can shut up the
static code analysis anyway.

Coverity-id: 1437358
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2018-06-21 23:26:57 -07:00
parent 5bd88d1539
commit 232d0a24b0
1 changed files with 2 additions and 2 deletions
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4
fs/xfs/xfs_fsmap.c
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@ -513,8 +513,8 @@ xfs_getfsmap_rtdev_rtbitmap_query(
struct xfs_trans *tp,
struct xfs_getfsmap_info *info)
{
struct xfs_rtalloc_rec alow;
struct xfs_rtalloc_rec ahigh;
struct xfs_rtalloc_rec alow = { 0 };
struct xfs_rtalloc_rec ahigh = { 0 };
int error;
xfs_ilock(tp->t_mountp->m_rbmip, XFS_ILOCK_SHARED);