Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e68b903c6b2b88c60050675b056648468f33ab54
Commit:     e68b903c6b2b88c60050675b056648468f33ab54
Parent:     7da975a231ae8c11593fd79d1083215321be213a
Author:     Martin K. Petersen <[EMAIL PROTECTED]>
AuthorDate: Tue Jan 29 19:14:08 2008 +0100
Committer:  Jens Axboe <[EMAIL PROTECTED]>
CommitDate: Tue Jan 29 21:55:17 2008 +0100

    Expose hardware sector size
    
    Expose hardware sector size in sysfs queue directory.
    
    Signed-off-by: Martin K. Petersen <[EMAIL PROTECTED]>
    Signed-off-by: Jens Axboe <[EMAIL PROTECTED]>
---
 block/blk-sysfs.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index d9b9afa..bc28776 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -102,6 +102,11 @@ static ssize_t queue_max_sectors_show(struct request_queue 
*q, char *page)
        return queue_var_show(max_sectors_kb, (page));
 }
 
+static ssize_t queue_hw_sector_size_show(struct request_queue *q, char *page)
+{
+       return queue_var_show(q->hardsect_size, page);
+}
+
 static ssize_t
 queue_max_sectors_store(struct request_queue *q, const char *page, size_t 
count)
 {
@@ -160,12 +165,18 @@ static struct queue_sysfs_entry queue_iosched_entry = {
        .store = elv_iosched_store,
 };
 
+static struct queue_sysfs_entry queue_hw_sector_size_entry = {
+       .attr = {.name = "hw_sector_size", .mode = S_IRUGO },
+       .show = queue_hw_sector_size_show,
+};
+
 static struct attribute *default_attrs[] = {
        &queue_requests_entry.attr,
        &queue_ra_entry.attr,
        &queue_max_hw_sectors_entry.attr,
        &queue_max_sectors_entry.attr,
        &queue_iosched_entry.attr,
+       &queue_hw_sector_size_entry.attr,
        NULL,
 };
 
-
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