Commit 662a8896 authored by Ed Cashin's avatar Ed Cashin Committed by Linus Torvalds
Browse files

aoe: describe the behavior of the "err" character device 



Signed-off-by: default avatarEd Cashin <ecashin@coraid.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 6e976631

drivers/block/aoe/aoechr.c

+5 −0
Original line number Diff line number Diff line
@@ -39,6 +39,11 @@ struct ErrMsg { 
};



static DEFINE_MUTEX(aoechr_mutex);



/* A ring buffer of error messages, to be read through

 * "/dev/etherd/err".  When no messages are present,

 * readers will block waiting for messages to appear.

 */

static struct ErrMsg emsgs[NMSG];

static int emsgs_head_idx, emsgs_tail_idx;

static struct completion emsgs_comp;

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