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From: Jeff Garzik <jgarzik@pobox.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: "Andrew Morton" <akpm@linux-foundation.org>,
	"Björn Steinbrink" <B.Steinbrink@gmx.de>,
	LKML <linux-kernel@vger.kernel.org>,
	"Ingo Molnar" <mingo@elte.hu>
Subject: Re: 2.6.24-git: kmap_atomic() WARN_ON()
Date: Mon, 25 Feb 2008 18:19:06 -0500	[thread overview]
Message-ID: <47C34CEA.7060307@pobox.com> (raw)
In-Reply-To: <alpine.LFD.1.00.0802252242290.7583@apollo.tec.linutronix.de>

[-- Attachment #1: Type: text/plain, Size: 83 bytes --]

Welcome to test this... (attached, not tested nor even compiled, really)

	Jeff




[-- Attachment #2: patch --]
[-- Type: text/plain, Size: 1078 bytes --]

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 0562b0a..7b1f1ee 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -1694,12 +1694,17 @@ void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
 	u8 *rbuf;
 	unsigned int buflen, rc;
 	struct scsi_cmnd *cmd = args->cmd;
+	unsigned long flags;
+
+	local_irq_save(flags);
 
 	buflen = ata_scsi_rbuf_get(cmd, &rbuf);
 	memset(rbuf, 0, buflen);
 	rc = actor(args, rbuf, buflen);
 	ata_scsi_rbuf_put(cmd, rbuf);
 
+	local_irq_restore(flags);
+
 	if (rc == 0)
 		cmd->result = SAM_STAT_GOOD;
 	args->done(cmd);
@@ -2473,6 +2478,9 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc)
 		if ((scsicmd[0] == INQUIRY) && ((scsicmd[1] & 0x03) == 0)) {
 			u8 *buf = NULL;
 			unsigned int buflen;
+			unsigned long flags;
+
+			local_irq_save(flags);
 
 			buflen = ata_scsi_rbuf_get(cmd, &buf);
 
@@ -2490,6 +2498,8 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc)
 			}
 
 			ata_scsi_rbuf_put(cmd, buf);
+
+			local_irq_restore(flags);
 		}
 
 		cmd->result = SAM_STAT_GOOD;

  parent reply	other threads:[~2008-02-25 23:19 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-06 23:58 Thomas Gleixner
2008-02-13 22:39 ` Rafael J. Wysocki
2008-02-14  1:13   ` Thomas Gleixner
2008-02-25 19:59 ` Björn Steinbrink
2008-02-25 20:08   ` Jeff Garzik
2008-02-25 20:35     ` Björn Steinbrink
2008-02-25 20:40     ` Andrew Morton
2008-02-25 22:01       ` Thomas Gleixner
2008-02-25 22:17         ` Andrew Morton
2008-02-25 23:19         ` Jeff Garzik [this message]
2008-02-26  8:39           ` Ingo Molnar
2008-02-26 16:32             ` Jeff Garzik
2008-02-26 18:19               ` Andrew Morton
2008-02-26 20:49                 ` Ingo Molnar
2008-02-26 21:37                   ` Andrew Morton
2008-02-26 22:59                     ` Jeff Garzik
2008-02-27  0:02                       ` Alan Cox
2008-02-26 23:49                   ` Nick Piggin
2008-02-26  8:50           ` Thomas Gleixner

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