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NFSv4.2/pnfs: Use GFP_NOIO for layoutstat reporting in the writeback path

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Prevent a potential deadlock.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust
2015-08-05 17:31:58 -04:00
parent d099d7b831
commit c8ad8894e9
3 changed files with 8 additions and 6 deletions
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6
fs/nfs/flexfilelayout/flexfilelayout.c
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@@ -510,7 +510,8 @@ nfs4_ff_layout_stat_io_start_read(struct nfs4_ff_layout_mirror *mirror,
spin_unlock(&mirror->lock);
if (report)
pnfs_report_layoutstat(mirror->lseg->pls_layout->plh_inode);
pnfs_report_layoutstat(mirror->lseg->pls_layout->plh_inode,
GFP_KERNEL);
}
static void
@@ -538,7 +539,8 @@ nfs4_ff_layout_stat_io_start_write(struct nfs4_ff_layout_mirror *mirror,
spin_unlock(&mirror->lock);
if (report)
pnfs_report_layoutstat(mirror->lseg->pls_layout->plh_inode);
pnfs_report_layoutstat(mirror->lseg->pls_layout->plh_inode,
GFP_NOIO);
}
static void