mirror_zfs/include/os
Brian Behlendorf d02fc15ba1 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 10:51:27 -08:00
..
freebsd Fix compiling on FreeBSD + gcc - don't assume illmnos bits 2020-11-11 11:09:50 -08:00
linux Linux: Fix ZFS_ENTER/ZFS_EXIT/ZFS_VERFY_ZP usage 2020-11-14 10:51:27 -08:00
Makefile.am Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00