36 lines
1.2 KiB
Diff
36 lines
1.2 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Chris Siebenmann <cks.github@cs.toronto.edu>
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Date: Wed, 5 Sep 2018 01:26:56 -0400
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Subject: [PATCH] Correctly handle errors from kern_path
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As a regular kernel function, kern_path() returns errors as negative
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errnos, such as -ELOOP. zfsctl_snapdir_vget() must convert these into
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the positive errnos used throughout the ZFS code when it returns them
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to other ZFS functions so that the ZFS code properly sees them as
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errors.
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Reviewed-by: George Melikov <mail@gmelikov.ru>
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Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
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Signed-off-by: Chris Siebenmann <cks.git01@cs.toronto.edu>
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Closes #7764
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Closes #7864
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Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
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---
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module/zfs/zfs_ctldir.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/module/zfs/zfs_ctldir.c b/module/zfs/zfs_ctldir.c
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index 25edea78..0ab5b4f0 100644
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--- a/module/zfs/zfs_ctldir.c
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+++ b/module/zfs/zfs_ctldir.c
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@@ -1180,7 +1180,7 @@ zfsctl_snapdir_vget(struct super_block *sb, uint64_t objsetid, int gen,
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goto out;
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/* Trigger automount */
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- error = kern_path(mnt, LOOKUP_FOLLOW|LOOKUP_DIRECTORY, &path);
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+ error = -kern_path(mnt, LOOKUP_FOLLOW|LOOKUP_DIRECTORY, &path);
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if (error)
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goto out;
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