linux-toradex.git/drivers/block/xen-blkback, branch v6.15-rc7

xen/blkback: convert timeouts to secs_to_jiffies()

2025-01-13T04:21:03+00:00

Commit b35108a51cf7 ("jiffies: Define secs_to_jiffies()") introduced
secs_to_jiffies().  As the value here is a multiple of 1000, use
secs_to_jiffies() instead of msecs_to_jiffies to avoid the multiplication.

This is converted using scripts/coccinelle/misc/secs_to_jiffies.cocci with
the following Coccinelle rules:

@@ constant C; @@

- msecs_to_jiffies(C * 1000)
+ secs_to_jiffies(C)

@@ constant C; @@

- msecs_to_jiffies(C * MSEC_PER_SEC)
+ secs_to_jiffies(C)

Link: https://lkml.kernel.org/r/20241210-converge-secs-to-jiffies-v3-12-ddfefd7e9f2a@linux.microsoft.com
Signed-off-by: Easwar Hariharan 
Cc: Alexander Gordeev 
Cc: Andrew Lunn 
Cc: Anna-Maria Behnsen 
Cc: Catalin Marinas 
Cc: Christian Borntraeger 
Cc: Christophe Leroy 
Cc: Daniel Mack 
Cc: David Airlie 
Cc: David S. Miller 
Cc: Dick Kennedy 
Cc: Eric Dumazet 
Cc: Florian Fainelli 
Cc: Greg Kroah-Hartman 
Cc: Haojian Zhuang 
Cc: Heiko Carstens 
Cc: Ilya Dryomov 
Cc: Jack Wang 
Cc: Jakub Kicinski 
Cc: James Bottomley 
Cc: James Smart 
Cc: Jaroslav Kysela 
Cc: Jeff Johnson 
Cc: Jeff Johnson 
Cc: Jens Axboe 
Cc: Jeroen de Borst 
Cc: Jiri Kosina 
Cc: Joe Lawrence 
Cc: Johan Hedberg 
Cc: Josh Poimboeuf 
Cc: Jozsef Kadlecsik 
Cc: Julia Lawall 
Cc: Kalle Valo 
Cc: Louis Peens 
Cc: Lucas De Marchi 
Cc: Luiz Augusto von Dentz 
Cc: Maarten Lankhorst 
Cc: Madhavan Srinivasan 
Cc: Marcel Holtmann 
Cc: Martin K. Petersen 
Cc: Maxime Ripard 
Cc: Michael Ellerman 
Cc: Miroslav Benes 
Cc: Naveen N Rao 
Cc: Nicholas Piggin 
Cc: Nicolas Palix 
Cc: Oded Gabbay 
Cc: Ofir Bitton 
Cc: Pablo Neira Ayuso 
Cc: Paolo Abeni 
Cc: Petr Mladek 
Cc: Praveen Kaligineedi 
Cc: Ray Jui 
Cc: Robert Jarzmik 
Cc: Rodrigo Vivi 
Cc: Roger Pau Monné 
Cc: Russell King 
Cc: Scott Branden 
Cc: Shailend Chand 
Cc: Simona Vetter 
Cc: Simon Horman 
Cc: Sven Schnelle 
Cc: Takashi Iwai 
Cc: Thomas Hellström 
Cc: Thomas Zimmermann 
Cc: Vasily Gorbik 
Cc: Xiubo Li 
Signed-off-by: Andrew Morton

xen/blkback: add missing MODULE_DESCRIPTION() macro

2024-07-10T06:21:18+00:00

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/block/xen-blkback/xen-blkback.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson 
Link: https://lore.kernel.org/r/20240602-md-block-xen-blkback-v1-1-6ff5b58bdee1@quicinc.com
Signed-off-by: Jens Axboe

xen: port block device access to file

2024-02-25T11:05:23+00:00

Link: https://lore.kernel.org/r/20240123-vfs-bdev-file-v2-11-adbd023e19cc@kernel.org
Reviewed-by: Jan Kara 
Signed-off-by: Christian Brauner

drivers/block/xen-blkback/common.h: Fix spelling typo in comment

2024-01-04T23:10:29+00:00

Fix spelling typo in comment.

Reported-by: k2ci 
Signed-off-by: liyouhong 
Reviewed-by: Juergen Gross 
Link: https://lore.kernel.org/r/20231226095701.172080-1-liyouhong@kylinos.cn
Signed-off-by: Jens Axboe

xen/blkback: Convert to bdev_open_by_dev()

2023-10-28T11:29:17+00:00

Convert xen/blkback to use bdev_open_by_dev() and pass the
handle around.

CC: xen-devel@lists.xenproject.org
Acked-by: Christoph Hellwig 
Acked-by: Christian Brauner 
Signed-off-by: Jan Kara 
Link: https://lore.kernel.org/r/20230927093442.25915-7-jack@suse.cz
Signed-off-by: Christian Brauner

block: replace fmode_t with a block-specific type for block open flags

2023-06-12T14:04:05+00:00

The only overlap between the block open flags mapped into the fmode_t and
other uses of fmode_t are FMODE_READ and FMODE_WRITE.  Define a new
blk_mode_t instead for use in blkdev_get_by_{dev,path}, ->open and
->ioctl and stop abusing fmode_t.

Signed-off-by: Christoph Hellwig 
Acked-by: Jack Wang 		[rnbd]
Reviewed-by: Hannes Reinecke 
Reviewed-by: Christian Brauner 
Link: https://lore.kernel.org/r/20230608110258.189493-28-hch@lst.de
Signed-off-by: Jens Axboe

block: use the holder as indication for exclusive opens

2023-06-12T14:04:04+00:00

The current interface for exclusive opens is rather confusing as it
requires both the FMODE_EXCL flag and a holder.  Remove the need to pass
FMODE_EXCL and just key off the exclusive open off a non-NULL holder.

For blkdev_put this requires adding the holder argument, which provides
better debug checking that only the holder actually releases the hold,
but at the same time allows removing the now superfluous mode argument.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Hannes Reinecke 
Acked-by: Christian Brauner 
Acked-by: David Sterba 		[btrfs]
Acked-by: Jack Wang 		[rnbd]
Link: https://lore.kernel.org/r/20230608110258.189493-16-hch@lst.de
Signed-off-by: Jens Axboe

block: introduce holder ops

2023-06-05T16:53:04+00:00

Add a new blk_holder_ops structure, which is passed to blkdev_get_by_* and
installed in the block_device for exclusive claims.  It will be used to
allow the block layer to call back into the user of the block device for
thing like notification of a removed device or a device resize.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Jan Kara 
Acked-by: Dave Chinner 
Reviewed-by: Dave Chinner 
Link: https://lore.kernel.org/r/20230601094459.1350643-10-hch@lst.de
Signed-off-by: Jens Axboe

xen/blkback: move blkif_get_x86_*_req() into blkback.c

2023-04-25T09:09:30+00:00

There is no need to have the functions blkif_get_x86_32_req() and
blkif_get_x86_64_req() in a header file, as they are used in one place
only.

So move them into the using source file and drop the inline qualifier.

While at it fix some style issues, and simplify the code by variable
reusing and using min() instead of open coding it.

Instead of using barrier() use READ_ONCE() for avoiding multiple reads
of nr_segments.

Signed-off-by: Juergen Gross 
Acked-by: Roger Pau Monné 
Signed-off-by: Juergen Gross

xen/blkback: simplify free_persistent_gnts() interface

2023-04-25T09:09:27+00:00

The interface of free_persistent_gnts() can be simplified, as there is
only a single caller of free_persistent_gnts() and the 2nd and 3rd
parameters are easily obtainable via the ring pointer, which is passed
as the first parameter anyway.

Signed-off-by: Juergen Gross 
Acked-by: Roger Pau Monné 
Signed-off-by: Juergen Gross