Re: [PATCH -next 2/5] block: add ioctl to read the disk sequence number

2021-03-15 Thread Matteo Croce
On Mon, Mar 15, 2021 at 9:13 PM Matthew Wilcox wrote: > > On Mon, Mar 15, 2021 at 09:02:39PM +0100, Matteo Croce wrote: > > +++ b/include/uapi/linux/fs.h > > @@ -184,6 +184,7 @@ struct fsxattr { > > #define BLKSECDISCARD _IO(0x12,125) > > #define BLKROTATIONAL _IO(0x12,126) > > #define BLKZEROO

Re: [PATCH -next 2/5] block: add ioctl to read the disk sequence number

2021-03-15 Thread Damien Le Moal
On 2021/03/16 5:14, Matthew Wilcox wrote: > On Mon, Mar 15, 2021 at 09:02:39PM +0100, Matteo Croce wrote: >> +++ b/include/uapi/linux/fs.h >> @@ -184,6 +184,7 @@ struct fsxattr { >> #define BLKSECDISCARD _IO(0x12,125) >> #define BLKROTATIONAL _IO(0x12,126) >> #define BLKZEROOUT _IO(0x12,127) >>

Re: [PATCH -next 2/5] block: add ioctl to read the disk sequence number

2021-03-15 Thread Matthew Wilcox
On Mon, Mar 15, 2021 at 09:02:39PM +0100, Matteo Croce wrote: > +++ b/include/uapi/linux/fs.h > @@ -184,6 +184,7 @@ struct fsxattr { > #define BLKSECDISCARD _IO(0x12,125) > #define BLKROTATIONAL _IO(0x12,126) > #define BLKZEROOUT _IO(0x12,127) > +#define BLKGETDISKSEQ _IOR(0x12,128,__u64) > /*

[PATCH -next 2/5] block: add ioctl to read the disk sequence number

2021-03-15 Thread Matteo Croce
From: Matteo Croce Add a new BLKGETDISKSEQ ioctl which retrieves the disk sequence number from the genhd structure. Signed-off-by: Matteo Croce --- block/ioctl.c | 2 ++ include/uapi/linux/fs.h | 1 + 2 files changed, 3 insertions(+) diff --git a/block/ioctl.c b/block/ioctl.c index