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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-08-21 22:32:06 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-09-26 21:09:59 -0400 |
| commit | c3c073f808b22dfae15ef8412b6f7b998644139a (patch) | |
| tree | 3369bcbe414738d90e6ccfe257f6ce3e72f6a5ae /include/linux/fdtable.h | |
| parent | ad47bd7252bf402fe7dba92f5240b5ed16832ae7 (diff) | |
| download | lwn-c3c073f808b22dfae15ef8412b6f7b998644139a.tar.gz lwn-c3c073f808b22dfae15ef8412b6f7b998644139a.zip | |
new helper: iterate_fd()
iterates through the opened files in given descriptor table,
calling a supplied function; we stop once non-zero is returned.
Callback gets struct file *, descriptor number and const void *
argument passed to iterator. It is called with files->file_lock
held, so it is not allowed to block.
tty_io, netprio_cgroup and selinux flush_unauthorized_files()
converted to its use.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/fdtable.h')
| -rw-r--r-- | include/linux/fdtable.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h index de2b71caa0f0..fb7dacae0522 100644 --- a/include/linux/fdtable.h +++ b/include/linux/fdtable.h @@ -98,6 +98,9 @@ void reset_files_struct(struct files_struct *); int unshare_files(struct files_struct **); struct files_struct *dup_fd(struct files_struct *, int *); void do_close_on_exec(struct files_struct *); +int iterate_fd(struct files_struct *, unsigned, + int (*)(const void *, struct file *, unsigned), + const void *); extern int __alloc_fd(struct files_struct *files, unsigned start, unsigned end, unsigned flags); |