John Baldwin fada4adf95 The changes that introduced fo_mmap() treated all character device ... mappings as if MAP_SHARED was always present since in general MAP_PRIVATE is not permitted for character devices. However, there is one exception in that MAP_PRIVATE mappings are permitted for /dev/zero. Only require a writable file descriptor (FWRITE) for shared, writable mappings of character devices. vm_mmap_cdev() will reject any private mappings for other devices. Reviewed by: kib Reported by: sbruno (broke qemu cross-builds), peter Differential Revision: https://reviews.freebsd.org/D3316		2015-08-06 16:50:37 +00:00
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devfs.h	Introduce the "ruleset=number" option for devfs(5) mounts.	2012-02-09 10:09:12 +00:00
devfs_devs.c	Disable timestamping on devfs read/write operations by default.	2015-03-21 01:14:11 +00:00
devfs_dir.c	Add reference counting for devfs paths containing user created symbolic	2010-09-27 17:47:09 +00:00
devfs_int.h	Stop enforcing additional reference on all cdevs, which was introduced	2015-01-19 17:36:52 +00:00
devfs_rule.c	make path matching in devfs rules consistent and sane (and safer)	2013-07-26 14:25:58 +00:00
devfs_vfsops.c	Complete MPSAFE VFS interface and remove MNTK_MPSAFE flag.	2012-11-09 18:02:25 +00:00
devfs_vnops.c	The changes that introduced fo_mmap() treated all character device	2015-08-06 16:50:37 +00:00