twx-linux

Files

T

Amir Goldstein afec706807 ovl: support stacked SEEK_HOLE/SEEK_DATA

commit 9e46b840c7 upstream.

Overlay file f_pos is the master copy that is preserved
through copy up and modified on read/write, but only real
fs knows how to SEEK_HOLE/SEEK_DATA and real fs may impose
limitations that are more strict than ->s_maxbytes for specific
files, so we use the real file to perform seeks.

We do not call real fs for SEEK_CUR:0 query and for SEEK_SET:0
requests.

Fixes: d1d04ef857 ("ovl: stack file ops")
Reported-by: Eddie Horng <eddiehorng.tw@gmail.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2019-06-15 11:54:11 +02:00

copy_up.c

ovl: fix missing upper fs freeze protection on copy up for ioctl

2019-05-25 18:23:30 +02:00

dir.c

ovl: relax WARN_ON() for overlapping layers use case

2019-05-31 06:46:03 -07:00

export.c

ovl: fix decode of dir file handle with multi lower layers

2018-12-19 19:19:51 +01:00

file.c

ovl: support stacked SEEK_HOLE/SEEK_DATA