TononixOS/ubports_kernel_google_msm
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[PATCH] file: modify struct fown_struct to use a struct pid

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File handles can be requested to send sigio and sigurg to processes.  By
tracking the destination processes using struct pid instead of pid_t we make
the interface safe from all potential pid wrap around problems.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Eric W. Biederman
2006-10-02 02:17:15 -07:00
committed by Linus Torvalds
parent bde0d2c98b
commit 609d7fa956
8 changed files with 59 additions and 34 deletions
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1
fs/file_table.c
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@@ -174,6 +174,7 @@ void fastcall __fput(struct file *file)
fops_put(file->f_op);
if (file->f_mode & FMODE_WRITE)
put_write_access(inode);
put_pid(file->f_owner.pid);
file_kill(file);
file->f_dentry = NULL;
file->f_vfsmnt = NULL;