Mike Snitzer
244986e8f0
BugLink: https://bugs.launchpad.net/bugs/2114239 commit eb3fabde15bccdf34f1c9b35a83aa4c0dacbb4ca upstream. If ff_layout_pg_get_read()'s attempt to get a layout segment results in -EAGAIN have ff_layout_pg_init_read() retry it after sleeping. If "softerr" mount is used, use 'io_maxretrans' to limit the number of attempts to get a layout segment. This fixes a long-standing issue of O_DIRECT reads failing with -EAGAIN (11) when using flexfiles Client Side Mirroring (CSM). Cc: stable@vger.kernel.org Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Noah Wager <noah.wager@canonical.com> Signed-off-by: Mehmet Basaran <mehmet.basaran@canonical.com>