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authorAl Viro <viro@zeniv.linux.org.uk>2011-11-23 12:14:10 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-01-03 22:56:57 -0500
commit7d6fec45a5131918b51dcd76da52f2ec86a85be6 (patch)
tree82af862264cfa176a37c7d9f915806346c8df0bc /fs/internal.h
parentdabe0dc194d5d56d379a8994fff47392744b6491 (diff)
downloadlinux-7d6fec45a5131918b51dcd76da52f2ec86a85be6.tar.bz2
vfs: start hiding vfsmount guts series
Almost all fields of struct vfsmount are used only by core VFS (and a fairly small part of it, at that). The plan: embed struct vfsmount into struct mount, making the latter visible only to core parts of VFS. Then move fields from vfsmount to mount, eventually leaving only mnt_root/mnt_sb/mnt_flags in struct vfsmount. Filesystem code still gets pointers to struct vfsmount and remains unchanged; all such pointers go to struct vfsmount embedded into the instances of struct mount allocated by fs/namespace.c. When fs/namespace.c et.al. get a pointer to vfsmount, they turn it into pointer to mount (using container_of) and work with that. This is the first part of series; struct mount is introduced, allocation switched to using it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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