Linux 4.19.93

Merge 109 patches from 4.19.93 stable
branch (113 total) beside 3 already merged patches:
332ed88 perf strbuf: Remove redundant va_end() in strbuf_addv()
40696eb Make filldir[64]() verify the directory entry filename is valid
0643c3d filldir[64]: remove WARN_ON_ONCE() for bad directory entries

Delay to merge commit 0af1ad3b1ce5 ("ext4: update direct I/O read lock pattern for IOCB_NOWAIT")
because it conflicts with 7d434de5f404 ("Revert "ext4: Allow parallel DIO reads"").
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

Makefile

 # SPDX-License-Identifier: GPL-2.0
 VERSION = 4
 PATCHLEVEL = 19
-SUBLEVEL = 92
+SUBLEVEL = 93
 EXTRAVERSION =
 NAME = "People's Front"