From: Bart Van Assche <bvanassche@acm.org>
To: "Martin K . Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
Damien Le Moal <dlemoal@kernel.org>,
Hannes Reinecke <hare@suse.de>,
Bart Van Assche <bvanassche@acm.org>,
"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Subject: [PATCH 2/6] scsi: sd: Move the sd_config_discard() function definition
Date: Tue, 30 Jul 2024 14:00:37 -0700 [thread overview]
Message-ID: <20240730210042.266504-3-bvanassche@acm.org> (raw)
In-Reply-To: <20240730210042.266504-1-bvanassche@acm.org>
Move the sd_config_discard() function definition such that its
forward declaration can be removed.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
drivers/scsi/sd.c | 114 +++++++++++++++++++++++-----------------------
1 file changed, 56 insertions(+), 58 deletions(-)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 58ea8c06205b..8b8a355435b4 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -103,8 +103,6 @@ MODULE_ALIAS_SCSI_DEVICE(TYPE_ZBC);
#define SD_MINORS 16
-static void sd_config_discard(struct scsi_disk *sdkp, struct queue_limits *lim,
- unsigned int mode);
static void sd_config_write_same(struct scsi_disk *sdkp,
struct queue_limits *lim);
static int sd_revalidate_disk(struct gendisk *);
@@ -121,6 +119,62 @@ static const char *sd_cache_types[] = {
"write back, no read (daft)"
};
+static void sd_disable_discard(struct scsi_disk *sdkp)
+{
+ sdkp->provisioning_mode = SD_LBP_DISABLE;
+ blk_queue_disable_discard(sdkp->disk->queue);
+}
+
+static void sd_config_discard(struct scsi_disk *sdkp, struct queue_limits *lim,
+ unsigned int mode)
+{
+ unsigned int logical_block_size = sdkp->device->sector_size;
+ unsigned int max_blocks = 0;
+
+ lim->discard_alignment = sdkp->unmap_alignment * logical_block_size;
+ lim->discard_granularity = max(sdkp->physical_block_size,
+ sdkp->unmap_granularity * logical_block_size);
+ sdkp->provisioning_mode = mode;
+
+ switch (mode) {
+
+ case SD_LBP_FULL:
+ case SD_LBP_DISABLE:
+ break;
+
+ case SD_LBP_UNMAP:
+ max_blocks = min_not_zero(sdkp->max_unmap_blocks,
+ (u32)SD_MAX_WS16_BLOCKS);
+ break;
+
+ case SD_LBP_WS16:
+ if (sdkp->device->unmap_limit_for_ws)
+ max_blocks = sdkp->max_unmap_blocks;
+ else
+ max_blocks = sdkp->max_ws_blocks;
+
+ max_blocks = min_not_zero(max_blocks, (u32)SD_MAX_WS16_BLOCKS);
+ break;
+
+ case SD_LBP_WS10:
+ if (sdkp->device->unmap_limit_for_ws)
+ max_blocks = sdkp->max_unmap_blocks;
+ else
+ max_blocks = sdkp->max_ws_blocks;
+
+ max_blocks = min_not_zero(max_blocks, (u32)SD_MAX_WS10_BLOCKS);
+ break;
+
+ case SD_LBP_ZERO:
+ max_blocks = min_not_zero(sdkp->max_ws_blocks,
+ (u32)SD_MAX_WS10_BLOCKS);
+ break;
+ }
+
+ lim->max_hw_discard_sectors = max_blocks *
+ (logical_block_size >> SECTOR_SHIFT);
+}
+
static void sd_set_flush_flag(struct scsi_disk *sdkp,
struct queue_limits *lim)
{
@@ -841,62 +895,6 @@ static unsigned char sd_setup_protect_cmnd(struct scsi_cmnd *scmd,
return protect;
}
-static void sd_disable_discard(struct scsi_disk *sdkp)
-{
- sdkp->provisioning_mode = SD_LBP_DISABLE;
- blk_queue_disable_discard(sdkp->disk->queue);
-}
-
-static void sd_config_discard(struct scsi_disk *sdkp, struct queue_limits *lim,
- unsigned int mode)
-{
- unsigned int logical_block_size = sdkp->device->sector_size;
- unsigned int max_blocks = 0;
-
- lim->discard_alignment = sdkp->unmap_alignment * logical_block_size;
- lim->discard_granularity = max(sdkp->physical_block_size,
- sdkp->unmap_granularity * logical_block_size);
- sdkp->provisioning_mode = mode;
-
- switch (mode) {
-
- case SD_LBP_FULL:
- case SD_LBP_DISABLE:
- break;
-
- case SD_LBP_UNMAP:
- max_blocks = min_not_zero(sdkp->max_unmap_blocks,
- (u32)SD_MAX_WS16_BLOCKS);
- break;
-
- case SD_LBP_WS16:
- if (sdkp->device->unmap_limit_for_ws)
- max_blocks = sdkp->max_unmap_blocks;
- else
- max_blocks = sdkp->max_ws_blocks;
-
- max_blocks = min_not_zero(max_blocks, (u32)SD_MAX_WS16_BLOCKS);
- break;
-
- case SD_LBP_WS10:
- if (sdkp->device->unmap_limit_for_ws)
- max_blocks = sdkp->max_unmap_blocks;
- else
- max_blocks = sdkp->max_ws_blocks;
-
- max_blocks = min_not_zero(max_blocks, (u32)SD_MAX_WS10_BLOCKS);
- break;
-
- case SD_LBP_ZERO:
- max_blocks = min_not_zero(sdkp->max_ws_blocks,
- (u32)SD_MAX_WS10_BLOCKS);
- break;
- }
-
- lim->max_hw_discard_sectors = max_blocks *
- (logical_block_size >> SECTOR_SHIFT);
-}
-
static void *sd_set_special_bvec(struct request *rq, unsigned int data_len)
{
struct page *page;
next prev parent reply other threads:[~2024-07-30 21:01 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-30 21:00 [PATCH 0/6] SCSI disk source code cleanup Bart Van Assche
2024-07-30 21:00 ` [PATCH 1/6] scsi: sd: Move the sd_remove() function definition Bart Van Assche
2024-07-30 23:41 ` Damien Le Moal
2024-07-30 21:00 ` Bart Van Assche [this message]
2024-07-30 23:42 ` [PATCH 2/6] scsi: sd: Move the sd_config_discard() " Damien Le Moal
2024-07-30 21:00 ` [PATCH 3/6] scsi: sd: Move the sd_config_write_same() " Bart Van Assche
2024-07-30 23:43 ` Damien Le Moal
2024-07-30 21:00 ` [PATCH 4/6] scsi: sd: Move the scsi_disk_release() " Bart Van Assche
2024-07-30 23:43 ` Damien Le Moal
2024-07-30 21:00 ` [PATCH 5/6] scsi: sd: Move the sd_fops definition Bart Van Assche
2024-07-30 23:44 ` Damien Le Moal
2024-07-30 21:00 ` [PATCH 6/6] scsi: sd: Do not split error messages Bart Van Assche
2024-07-30 23:47 ` Damien Le Moal
2024-08-05 23:38 ` Bart Van Assche
2024-07-31 1:12 ` [PATCH 0/6] SCSI disk source code cleanup Himanshu Madhani
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