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| author | James Morris <james.l.morris@oracle.com> | 2017-03-28 02:03:35 +0200 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2017-03-28 02:03:35 +0200 |
| commit | 840c91dc6a13b160f5b6e5c79c430dffac11c945 (patch) | |
| tree | 5309824f4531b2611a575e7971a935d2e95feb02 /fs/nfs/flexfilelayout/flexfilelayout.h | |
| parent | LSM: Initialize security_hook_heads upon registration. (diff) | |
| parent | Linux 4.11-rc4 (diff) | |
| download | linux-840c91dc6a13b160f5b6e5c79c430dffac11c945.tar.xz linux-840c91dc6a13b160f5b6e5c79c430dffac11c945.zip | |
update to v4.11-rc4 due to memory corruption bug in rc2
Diffstat (limited to 'fs/nfs/flexfilelayout/flexfilelayout.h')
| -rw-r--r-- | fs/nfs/flexfilelayout/flexfilelayout.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.h b/fs/nfs/flexfilelayout/flexfilelayout.h index f4f39b0ab09b..98b34c9b0564 100644 --- a/fs/nfs/flexfilelayout/flexfilelayout.h +++ b/fs/nfs/flexfilelayout/flexfilelayout.h @@ -175,7 +175,19 @@ ff_layout_no_read_on_rw(struct pnfs_layout_segment *lseg) static inline bool ff_layout_test_devid_unavailable(struct nfs4_deviceid_node *node) { - return nfs4_test_deviceid_unavailable(node); + /* + * Flexfiles should never mark a DS unavailable, but if it does + * print a (ratelimited) warning as this can affect performance. + */ + if (nfs4_test_deviceid_unavailable(node)) { + u32 *p = (u32 *)node->deviceid.data; + + pr_warn_ratelimited("NFS: flexfiles layout referencing an " + "unavailable device [%x%x%x%x]\n", + p[0], p[1], p[2], p[3]); + return true; + } + return false; } static inline int |