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| author | Eric W. Biederman <ebiederm@xmission.com> | 2021-06-29 22:11:44 +0200 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2021-07-12 22:17:47 +0200 |
| commit | b48c7236b13cb5ef1b5fdf744aa8841df0f7b43a (patch) | |
| tree | 51f6b8e92bfc09e9472d82e488f9441217d56aaa /fs/buffer.c | |
| parent | Linux 5.14-rc1 (diff) | |
| download | linux-b48c7236b13cb5ef1b5fdf744aa8841df0f7b43a.tar.xz linux-b48c7236b13cb5ef1b5fdf744aa8841df0f7b43a.zip | |
exit/bdflush: Remove the deprecated bdflush system call
The bdflush system call has been deprecated for a very long time.
Recently Michael Schmitz tested[1] and found that the last known
caller of of the bdflush system call is unaffected by it's removal.
Since the code is not needed delete it.
[1] https://lkml.kernel.org/r/36123b5d-daa0-6c2b-f2d4-a942f069fd54@gmail.com
Link: https://lkml.kernel.org/r/87sg10quue.fsf_-_@disp2133
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Cyril Hrubis <chrubis@suse.cz>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'fs/buffer.c')
| -rw-r--r-- | fs/buffer.c | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/fs/buffer.c b/fs/buffer.c index 6290c3afdba4..32718ee13b08 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -3268,33 +3268,6 @@ out: EXPORT_SYMBOL(try_to_free_buffers); /* - * There are no bdflush tunables left. But distributions are - * still running obsolete flush daemons, so we terminate them here. - * - * Use of bdflush() is deprecated and will be removed in a future kernel. - * The `flush-X' kernel threads fully replace bdflush daemons and this call. - */ -SYSCALL_DEFINE2(bdflush, int, func, long, data) -{ - static int msg_count; - - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - - if (msg_count < 5) { - msg_count++; - printk(KERN_INFO - "warning: process `%s' used the obsolete bdflush" - " system call\n", current->comm); - printk(KERN_INFO "Fix your initscripts?\n"); - } - - if (func == 1) - do_exit(0); - return 0; -} - -/* * Buffer-head allocation */ static struct kmem_cache *bh_cachep __read_mostly; |