zfs/include/os/linux
Brian Behlendorf 4352edaafb
Linux: Fix ZFS_ENTER/ZFS_EXIT/ZFS_VERFY_ZP usage
The ZFS_ENTER/ZFS_EXIT/ZFS_VERFY_ZP macros should not be used
in the Linux zpl_*.c source files.  They return a positive error
value which is correct for the common code, but not for the Linux
specific kernel code which expects a negative return value.  The
ZPL_ENTER/ZPL_EXIT/ZPL_VERFY_ZP macros should be used instead.

Furthermore, the ZPL_EXIT macro has been updated to not call the
zfs_exit_fs() function.  This prevents a possible deadlock which
can occur when a snapshot is automatically unmounted because the
zpl_show_devname() must never wait on in progress automatic
snapshot unmounts.

Reviewed-by: Adam Moss <c@yotes.com>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11169 
Closes #11201
2020-11-14 10:19:00 -08:00
..
kernel Linux 5.10 compat: check_disk_change() removed 2020-11-02 22:01:19 +00:00
spl Introduce CPU_SEQID_UNSTABLE 2020-11-02 11:51:12 -08:00
zfs Linux: Fix ZFS_ENTER/ZFS_EXIT/ZFS_VERFY_ZP usage 2020-11-14 10:19:00 -08:00
Makefile.am OpenZFS restructuring - move platform specific headers 2019-09-05 09:34:54 -07:00