xfs: xfs_iflush_cluster fails to abort on error

[mirror_ubuntu-bionic-kernel.git] / fs / xfs / xfs_inode.c

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 96f606deee313aed506b7e7ee229fc801ba5de80..696936cad0fa84493c5fcdf39ecffb653a0265bf 100644 (file)
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -3327,7 +3327,7 @@ xfs_iflush(
        struct xfs_buf          **bpp)
 {
        struct xfs_mount        *mp = ip->i_mount;
-       struct xfs_buf          *bp;
+       struct xfs_buf          *bp = NULL;
        struct xfs_dinode       *dip;
        int                     error;
 
@@ -3369,14 +3369,22 @@ xfs_iflush(
        }
 
        /*
-        * Get the buffer containing the on-disk inode.
+        * Get the buffer containing the on-disk inode. We are doing a try-lock
+        * operation here, so we may get  an EAGAIN error. In that case, we
+        * simply want to return with the inode still dirty.
+        *
+        * If we get any other error, we effectively have a corruption situation
+        * and we cannot flush the inode, so we treat it the same as failing
+        * xfs_iflush_int().
         */
        error = xfs_imap_to_bp(mp, NULL, &ip->i_imap, &dip, &bp, XBF_TRYLOCK,
                               0);
-       if (error || !bp) {
+       if (error == -EAGAIN) {
                xfs_ifunlock(ip);
                return error;
        }
+       if (error)
+               goto corrupt_out;
 
        /*
         * First flush out the inode that xfs_iflush was called with.
@@ -3404,7 +3412,8 @@ xfs_iflush(
        return 0;
 
 corrupt_out:
-       xfs_buf_relse(bp);
+       if (bp)
+               xfs_buf_relse(bp);
        xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
 cluster_corrupt_out:
        error = -EFSCORRUPTED;