If a file such as /proc/bus/pci/*/* is mmaped and the underlying device is hotunplugedd we can potentially run into all kinds of ugly things. So implement unmap on remove by calling revoke_file_mappings. Signed-off-by: Eric W. Biederman <ebiederm@xxxxxxxxxxxxxxxxxx> --- fs/proc/generic.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/proc/generic.c b/fs/proc/generic.c index fa678ab..42ce941 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -20,6 +20,7 @@ #include <linux/bitops.h> #include <linux/spinlock.h> #include <linux/completion.h> +#include <linux/mm.h> #include <asm/uaccess.h> #include "internal.h" @@ -833,6 +834,7 @@ continue_removing: pdeo = list_first_entry(&de->pde_openers, struct pde_opener, lh); list_del(&pdeo->lh); spin_unlock(&de->pde_unload_lock); + revoke_file_mappings(pdeo->file); pdeo->release(pdeo->inode, pdeo->file); kfree(pdeo); spin_lock(&de->pde_unload_lock); -- 1.6.2.5 -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
