linux/fs/kernfs
Tejun Heo ccf02aaf81 kernfs: invoke kernfs_unmap_bin_file() directly from kernfs_deactivate()
kernfs_unmap_bin_file() is supposed to unmap all memory mappings of
the target file before kernfs_remove() finishes; however, it currently
is being called from kernfs_addrm_finish() and has the same race
problem as the original implementation of deactivation when there are
multiple removers - only the remover which snatches the node to its
addrm_cxt->removed list is guaranteed to wait for its completion
before returning.

It can be easily fixed by moving kernfs_unmap_bin_file() invocation
from kernfs_addrm_finish() to kernfs_deactivated().  The function may
be called multiple times but that shouldn't do any harm.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-07 15:42:40 -08:00
..
Makefile
dir.c kernfs: invoke kernfs_unmap_bin_file() directly from kernfs_deactivate() 2014-02-07 15:42:40 -08:00
file.c kernfs: associate a new kernfs_node with its parent on creation 2014-01-17 11:50:07 -08:00
inode.c kernfs: s/sysfs/kernfs/ in internal functions and whatever is left 2013-12-11 17:39:20 -08:00
kernfs-internal.h kernfs: associate a new kernfs_node with its parent on creation 2014-01-17 11:50:07 -08:00
mount.c kernfs: s/sysfs/kernfs/ in internal functions and whatever is left 2013-12-11 17:39:20 -08:00
symlink.c kernfs: associate a new kernfs_node with its parent on creation 2014-01-17 11:50:07 -08:00