From: Darrick J. Wong <darrick.wong@oracle.com>
Date: Wed, 18 Oct 2017 04:37:32 +0000 (-0700)
Subject: xfs: return a distinct error code value for IGET_INCORE cache misses
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=61bc71d34a00801657591e142f374794b6dc3548;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

xfs: return a distinct error code value for IGET_INCORE cache misses


[ Upstream commit ed438b476b611c67089760037139f93ea8ed41d5 ]

For an XFS_IGET_INCORE iget operation, if the inode isn't in the cache,
return ENODATA so that we don't confuse it with the pre-existing ENOENT
cases (inode is in cache, but freed).

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 34227115a5d6..43005fbe8b1e 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -610,7 +610,7 @@ again:
 	} else {
 		rcu_read_unlock();
 		if (flags & XFS_IGET_INCORE) {
-			error = -ENOENT;
+			error = -ENODATA;
 			goto out_error_or_again;
 		}
 		XFS_STATS_INC(mp, xs_ig_missed);