[19/30] scsi: replace the fmode_t argument to scsi_ioctl with a simple bool

Message ID	20230608110258.189493-20-hch@lst.de (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-btrfs-owner@vger.kernel.org> From: Christoph Hellwig <hch@lst.de> To: Jens Axboe <axboe@kernel.dk> Cc: Richard Weinberger <richard@nod.at>, Josef Bacik <josef@toxicpanda.com>, "Md. Haris Iqbal" <haris.iqbal@ionos.com>, Jack Wang <jinpu.wang@ionos.com>, Phillip Potter <phil@philpotter.co.uk>, Coly Li <colyli@suse.de>, Miquel Raynal <miquel.raynal@bootlin.com>, Vignesh Raghavendra <vigneshr@ti.com>, "Martin K. Petersen" <martin.petersen@oracle.com>, Chris Mason <clm@fb.com>, David Sterba <dsterba@suse.com>, Alexander Viro <viro@zeniv.linux.org.uk>, Christian Brauner <brauner@kernel.org>, "Rafael J. Wysocki" <rafael@kernel.org>, Pavel Machek <pavel@ucw.cz>, dm-devel@redhat.com, linux-block@vger.kernel.org, linux-um@lists.infradead.org, linux-scsi@vger.kernel.org, linux-bcache@vger.kernel.org, linux-mtd@lists.infradead.org, linux-nvme@lists.infradead.org, linux-btrfs@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-nilfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-pm@vger.kernel.org, Hannes Reinecke <hare@suse.de> Subject: [PATCH 19/30] scsi: replace the fmode_t argument to scsi_ioctl with a simple bool Date: Thu, 8 Jun 2023 13:02:47 +0200 Message-Id: <20230608110258.189493-20-hch@lst.de> In-Reply-To: <20230608110258.189493-1-hch@lst.de> References: <20230608110258.189493-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	[01/30] block: also call ->open for incremental partition opens \| expand [01/30] block: also call ->open for incremental partition opens [02/30] cdrom: remove the unused bdev argument to cdrom_open [03/30] cdrom: remove the unused mode argument to cdrom_ioctl [04/30] cdrom: remove the unused cdrom_close_write release code [05/30] cdrom: track if a cdrom_device_info was opened for data [06/30] cdrom: remove the unused mode argument to cdrom_release [07/30] block: pass a gendisk on bdev_check_media_change [08/30] block: pass a gendisk to ->open [09/30] block: remove the unused mode argument to ->release [10/30] block: rename blkdev_close to blkdev_release [11/30] swsusp: don't pass a stack address to blkdev_get_by_path [12/30] bcache: don't pass a stack address to blkdev_get_by_path [13/30] rnbd-srv: don't pass a holder for non-exclusive blkdev_get_by_path [14/30] btrfs: don't pass a holder for non-exclusive blkdev_get_by_path [15/30] block: use the holder as indication for exclusive opens [16/30] block: add a sb_open_mode helper [17/30] fs: remove sb->s_mode [18/30] scsi: replace the fmode_t argument to scsi_cmd_allowed with a simple bool [19/30] scsi: replace the fmode_t argument to scsi_ioctl with a simple bool [20/30] scsi: replace the fmode_t argument to ->sg_io_fn with a simple bool [21/30] nvme: replace the fmode_t argument to the nvme ioctl handlers with a simple bool [22/30] mtd: block: use a simple bool to track open for write [23/30] rnbd-srv: replace sess->open_flags with a "bool readonly" [24/30] ubd: remove commented out code in ubd_open [25/30] block: move a few internal definitions out of blkdev.h [26/30] block: remove unused fmode_t arguments from ioctl handlers [27/30] block: replace fmode_t with a block-specific type for block open flags [28/30] block: always use I_BDEV on file->f_mapping->host to find the bdev [29/30] block: store the holder in file->private_data [30/30] fs: remove the now unused FMODE_* flags

diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c index ac648bb8f7e7f4..cb0a399be1ccee 100644 --- a/drivers/scsi/ch.c +++ b/drivers/scsi/ch.c @@ -877,7 +877,8 @@ static long ch_ioctl(struct file *file, } default: - return scsi_ioctl(ch->device, file->f_mode, cmd, argp); + return scsi_ioctl(ch->device, file->f_mode & FMODE_WRITE, cmd, + argp); } } diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c index dda5468ca97f90..6f6c5973c3ea95 100644 --- a/drivers/scsi/scsi_ioctl.c +++ b/drivers/scsi/scsi_ioctl.c @@ -346,7 +346,7 @@ bool scsi_cmd_allowed(unsigned char *cmd, bool open_for_write) EXPORT_SYMBOL(scsi_cmd_allowed); static int scsi_fill_sghdr_rq(struct scsi_device *sdev, struct request *rq, - struct sg_io_hdr *hdr, fmode_t mode) + struct sg_io_hdr *hdr, bool open_for_write) { struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(rq); @@ -354,7 +354,7 @@ static int scsi_fill_sghdr_rq(struct scsi_device *sdev, struct request *rq, return -EMSGSIZE; if (copy_from_user(scmd->cmnd, hdr->cmdp, hdr->cmd_len)) return -EFAULT; - if (!scsi_cmd_allowed(scmd->cmnd, mode & FMODE_WRITE)) + if (!scsi_cmd_allowed(scmd->cmnd, open_for_write)) return -EPERM; scmd->cmd_len = hdr->cmd_len; @@ -407,7 +407,8 @@ static int scsi_complete_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr, return ret; } -static int sg_io(struct scsi_device *sdev, struct sg_io_hdr *hdr, fmode_t mode) +static int sg_io(struct scsi_device *sdev, struct sg_io_hdr *hdr, + bool open_for_write) { unsigned long start_time; ssize_t ret = 0; @@ -448,7 +449,7 @@ static int sg_io(struct scsi_device *sdev, struct sg_io_hdr *hdr, fmode_t mode) goto out_put_request; } - ret = scsi_fill_sghdr_rq(sdev, rq, hdr, mode); + ret = scsi_fill_sghdr_rq(sdev, rq, hdr, open_for_write); if (ret < 0) goto out_put_request; @@ -477,8 +478,7 @@ static int sg_io(struct scsi_device *sdev, struct sg_io_hdr *hdr, fmode_t mode) /** * sg_scsi_ioctl -- handle deprecated SCSI_IOCTL_SEND_COMMAND ioctl * @q: request queue to send scsi commands down - * @mode: mode used to open the file through which the ioctl has been - * submitted + * @open_for_write: is the file / block device opened for writing? * @sic: userspace structure describing the command to perform * * Send down the scsi command described by @sic to the device below @@ -501,7 +501,7 @@ static int sg_io(struct scsi_device *sdev, struct sg_io_hdr *hdr, fmode_t mode) * Positive numbers returned are the compacted SCSI error codes (4 * bytes in one int) where the lowest byte is the SCSI status. */ -static int sg_scsi_ioctl(struct request_queue *q, fmode_t mode, +static int sg_scsi_ioctl(struct request_queue *q, bool open_for_write, struct scsi_ioctl_command __user *sic) { struct request *rq; @@ -554,7 +554,7 @@ static int sg_scsi_ioctl(struct request_queue *q, fmode_t mode, goto error; err = -EPERM; - if (!scsi_cmd_allowed(scmd->cmnd, mode & FMODE_WRITE)) + if (!scsi_cmd_allowed(scmd->cmnd, open_for_write)) goto error; /* default. possible overridden later */ @@ -776,7 +776,7 @@ static int scsi_put_cdrom_generic_arg(const struct cdrom_generic_command *cgc, return 0; } -static int scsi_cdrom_send_packet(struct scsi_device *sdev, fmode_t mode, +static int scsi_cdrom_send_packet(struct scsi_device *sdev, bool open_for_write, void __user *arg) { struct cdrom_generic_command cgc; @@ -817,7 +817,7 @@ static int scsi_cdrom_send_packet(struct scsi_device *sdev, fmode_t mode, hdr.cmdp = ((struct cdrom_generic_command __user *) arg)->cmd; hdr.cmd_len = sizeof(cgc.cmd); - err = sg_io(sdev, &hdr, mode); + err = sg_io(sdev, &hdr, open_for_write); if (err == -EFAULT) return -EFAULT; @@ -832,7 +832,7 @@ static int scsi_cdrom_send_packet(struct scsi_device *sdev, fmode_t mode, return err; } -static int scsi_ioctl_sg_io(struct scsi_device *sdev, fmode_t mode, +static int scsi_ioctl_sg_io(struct scsi_device *sdev, bool open_for_write, void __user *argp) { struct sg_io_hdr hdr; @@ -841,7 +841,7 @@ static int scsi_ioctl_sg_io(struct scsi_device *sdev, fmode_t mode, error = get_sg_io_hdr(&hdr, argp); if (error) return error; - error = sg_io(sdev, &hdr, mode); + error = sg_io(sdev, &hdr, open_for_write); if (error == -EFAULT) return error; if (put_sg_io_hdr(&hdr, argp)) @@ -852,7 +852,7 @@ static int scsi_ioctl_sg_io(struct scsi_device *sdev, fmode_t mode, /** * scsi_ioctl - Dispatch ioctl to scsi device * @sdev: scsi device receiving ioctl - * @mode: mode the block/char device is opened with + * @open_for_write: is the file / block device opened for writing? * @cmd: which ioctl is it * @arg: data associated with ioctl * @@ -860,7 +860,7 @@ static int scsi_ioctl_sg_io(struct scsi_device *sdev, fmode_t mode, * does not take a major/minor number as the dev field. Rather, it takes * a pointer to a &struct scsi_device. */ -int scsi_ioctl(struct scsi_device *sdev, fmode_t mode, int cmd, +int scsi_ioctl(struct scsi_device *sdev, bool open_for_write, int cmd, void __user *arg) { struct request_queue *q = sdev->request_queue; @@ -896,11 +896,11 @@ int scsi_ioctl(struct scsi_device *sdev, fmode_t mode, int cmd, case SG_EMULATED_HOST: return sg_emulated_host(q, arg); case SG_IO: - return scsi_ioctl_sg_io(sdev, mode, arg); + return scsi_ioctl_sg_io(sdev, open_for_write, arg); case SCSI_IOCTL_SEND_COMMAND: - return sg_scsi_ioctl(q, mode, arg); + return sg_scsi_ioctl(q, open_for_write, arg); case CDROM_SEND_PACKET: - return scsi_cdrom_send_packet(sdev, mode, arg); + return scsi_cdrom_send_packet(sdev, open_for_write, arg); case CDROMCLOSETRAY: return scsi_send_start_stop(sdev, 3); case CDROMEJECT: diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index c67c84f6ba6178..02b6704ec2b401 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1463,7 +1463,7 @@ static int sd_ioctl(struct block_device *bdev, fmode_t mode, if (is_sed_ioctl(cmd)) return sed_ioctl(sdkp->opal_dev, cmd, p); - return scsi_ioctl(sdp, mode, cmd, p); + return scsi_ioctl(sdp, mode & FMODE_WRITE, cmd, p); } static void set_media_not_present(struct scsi_disk *sdkp) diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index e49ea693d0b656..138e28bb76b749 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -1103,7 +1103,8 @@ sg_ioctl_common(struct file *filp, Sg_device *sdp, Sg_fd *sfp, case SCSI_IOCTL_SEND_COMMAND: if (atomic_read(&sdp->detaching)) return -ENODEV; - return scsi_ioctl(sdp->device, filp->f_mode, cmd_in, p); + return scsi_ioctl(sdp->device, filp->f_mode & FMODE_WRITE, + cmd_in, p); case SG_SET_DEBUG: result = get_user(val, ip); if (result) @@ -1159,7 +1160,7 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) ret = sg_ioctl_common(filp, sdp, sfp, cmd_in, p); if (ret != -ENOIOCTLCMD) return ret; - return scsi_ioctl(sdp->device, filp->f_mode, cmd_in, p); + return scsi_ioctl(sdp->device, filp->f_mode & FMODE_WRITE, cmd_in, p); } static __poll_t diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index 55082acb59bcaa..00aaafc8dd78f8 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -543,7 +543,7 @@ static int sr_block_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd, if (ret != -ENOSYS) goto put; } - ret = scsi_ioctl(sdev, mode, cmd, argp); + ret = scsi_ioctl(sdev, mode & FMODE_WRITE, cmd, argp); put: scsi_autopm_put_device(sdev); diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index b90a440e135dc4..14d7981ddcdd19 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -3832,7 +3832,7 @@ static long st_ioctl(struct file *file, unsigned int cmd_in, unsigned long arg) break; } - retval = scsi_ioctl(STp->device, file->f_mode, cmd_in, p); + retval = scsi_ioctl(STp->device, file->f_mode & FMODE_WRITE, cmd_in, p); if (!retval && cmd_in == SCSI_IOCTL_STOP_UNIT) { /* unload */ STp->rew_at_close = 0; diff --git a/include/scsi/scsi_ioctl.h b/include/scsi/scsi_ioctl.h index 914201a8cb947c..a207c07da9d20c 100644 --- a/include/scsi/scsi_ioctl.h +++ b/include/scsi/scsi_ioctl.h @@ -45,7 +45,7 @@ typedef struct scsi_fctargaddress { int scsi_ioctl_block_when_processing_errors(struct scsi_device *sdev, int cmd, bool ndelay); -int scsi_ioctl(struct scsi_device *sdev, fmode_t mode, int cmd, +int scsi_ioctl(struct scsi_device *sdev, bool open_for_write, int cmd, void __user *arg); int get_sg_io_hdr(struct sg_io_hdr *hdr, const void __user *argp); int put_sg_io_hdr(const struct sg_io_hdr *hdr, void __user *argp);

[19/30] scsi: replace the fmode_t argument to scsi_ioctl with a simple bool

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