Oliver Neukum 94bebf4d1b Driver core: fix race in sysfs between sysfs_remove_file() and read()/write() ...

This patch prevents a race between IO and removing a file from sysfs.
It introduces a list of sysfs_buffers associated with a file at the inode.
Upon removal of a file the list is walked and the buffers marked orphaned.
IO to orphaned buffers fails with -ENODEV. The driver can safely free
associated data structures or be unloaded.

Signed-off-by: Oliver Neukum <oliver@neukum.name>
Acked-by: Maneesh Soni <maneesh@in.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2007-02-07 10:37:13 -08:00

..

bin.c

Driver core: fix race in sysfs between sysfs_remove_file() and read()/write()

2007-02-07 10:37:13 -08:00

dir.c

Driver core: fix race in sysfs between sysfs_remove_file() and read()/write()

2007-02-07 10:37:13 -08:00

file.c

Driver core: fix race in sysfs between sysfs_remove_file() and read()/write()

2007-02-07 10:37:13 -08:00

group.c

Driver core: fix race in sysfs between sysfs_remove_file() and read()/write()

2007-02-07 10:37:13 -08:00

inode.c

Driver core: fix race in sysfs between sysfs_remove_file() and read()/write()

2007-02-07 10:37:13 -08:00

Makefile

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mount.c

Driver core: fix race in sysfs between sysfs_remove_file() and read()/write()

2007-02-07 10:37:13 -08:00

symlink.c

Driver core: fix race in sysfs between sysfs_remove_file() and read()/write()

2007-02-07 10:37:13 -08:00

sysfs.h

Driver core: fix race in sysfs between sysfs_remove_file() and read()/write()

2007-02-07 10:37:13 -08:00