The patch titled
pata_atiixp: Audit notes on locking
has been added to the -mm tree. Its filename is
pata_atiixp-audit-notes-on-locking.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: pata_atiixp: Audit notes on locking
From: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Alan Cox <alan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
diff -puN drivers/ata/pata_atiixp.c~pata_atiixp-audit-notes-on-locking drivers/ata/pata_atiixp.c
--- a/drivers/ata/pata_atiixp.c~pata_atiixp-audit-notes-on-locking
+++ a/drivers/ata/pata_atiixp.c
@@ -173,6 +173,9 @@ static void atiixp_set_dmamode(struct at
*
* When DMA begins we need to ensure that the UDMA control
* register for the channel is correctly set.
+ *
+ * Note: The host lock held by the libata layer protects
+ * us from two channels both trying to set DMA bits at once
*/
static void atiixp_bmdma_start(struct ata_queued_cmd *qc)
@@ -199,6 +202,9 @@ static void atiixp_bmdma_start(struct at
*
* DMA has completed. Clear the UDMA flag as the next operations will
* be PIO ones not UDMA data transfer.
+ *
+ * Note: The host lock held by the libata layer protects
+ * us from two channels both trying to set DMA bits at once
*/
static void atiixp_bmdma_stop(struct ata_queued_cmd *qc)
_
Patches currently in -mm which might be from alan@xxxxxxxxxxxxxxxxxxx are
git-libata-all.patch
pata_acpi-rework-the-acpi-drivers-based-upon-experience.patch
pata_acpi-use-ata_sff_port_start.patch
libata-correct-handling-of-srst-reset-sequences.patch
libata-add-a-drivers-ide-style-dma-disable.patch
ata-pata_marvell-use-ioread-for-iomap-ped-memory.patch
drivers-ata-pata_ixp4xx_cfc-ioremap-return-code-check.patch
libata-add-a-horkage-entry-for-drq-mishandling-atapi.patch
pata_pdc202xx_old-fix-timings.patch
pata_ns87415-initial-cut-at-87415-87560-ide-support.patch
fix-hpa-handling-regression.patch
libata_scsi-fix-transfer-lengths.patch
pata_atiixp-audit-notes-on-locking.patch
pata_hpt3x2n-clean-up-dpll-stuff.patch
libata-fix-hopefully-all-the-remaining-problems-with.patch
introduce-dma_mask_none-as-a-signal-for-unable-to-do.patch
pcmcia-use-dma_mask_none-for-the-default-for-all.patch
serial_txx9-cleanup-includes.patch
serial-keep-the-dtr-setting-for-serial-console.patch
8250_pci-autodetect-mainpine-cards.patch
8250_pci-autodetect-mainpine-cards-fix.patch
wake-up-from-a-serial-port.patch
fix-ide-legacy-mode-resources.patch
fix-ide-legacy-mode-resources-fix.patch
git-scsi-misc.patch
geode-mfgpt-support-for-geode-class-machines.patch
geode-mfgpt-clock-event-device-support.patch
security-convert-lsm-into-a-static-interface-vs-fix-null-pointer-dereference-in-__vm_enough_memory.patch
blackfin-enable-arbitary-speed-serial-setting.patch
tty-bring-the-old-cris-driver-back-somewhere-into-the.patch
mxser-remove-use-of-dead-tty_flipbuf_size-definition.patch
jsm-remove-further-unneeded-crud.patch
ttyh-remove-dead-define.patch
codingstyle-relax-the-80-cole-rule.patch
add-config_vt_unicode.patch
keys-missing-word-in-documentation.patch
ide-cd-is-unmaintained.patch
tty-expose-new-methods-needed-for-drivers-to-get-termios.patch
tty-expose-new-methods-needed-for-drivers-to-get-termios-fix.patch
sysctl-remove-broken-cdrom-binary-sysctls.patch
mxser-remove-commented-crap.patch
char-cyclades-remove-bottom-half-processing.patch
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