kernel/linux.git/drivers/target/target_core_file.c, branch v6.6.134

scsi: target: core: add missing file_{start,end}_write()

2024-01-25T23:35:45+00:00

commit 0db1d53937fafa8bb96e077375691e16902f4899 upstream. The callers of vfs_iter_write() are required to hold file_start_write(). file_start_write() is a no-op for the S_ISBLK() case, but it is really needed when the backing file is a regular file. We are going to move file_{start,end}_write() into vfs_iter_write(), but we need to fix this first, so that the fix could be backported to stable kernels. Suggested-by: Christoph Hellwig Link: https://lore.kernel.org/r/ZV8ETIpM+wZa33B5@infradead.org/ Cc: Signed-off-by: Amir Goldstein Link: https://lore.kernel.org/r/20231123092000.2665902-1-amir73il@gmail.com Acked-by: Martin K. Petersen Reviewed-by: Christoph Hellwig Reviewed-by: Jens Axboe Signed-off-by: Christian Brauner Signed-off-by: Greg Kroah-Hartman

scsi: target: Rename sbc_ops to exec_cmd_ops

2023-04-12T01:55:36+00:00

The next patches allow us to call the block layer's pr_ops from the backends. This will require allowing the backends to hook into the cmd processing for SPC commands, so this renames sbc_ops to a more generic exec_cmd_ops. Signed-off-by: Mike Christie Link: https://lore.kernel.org/r/20230407200551.12660-15-michael.christie@oracle.com Reviewed-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Signed-off-by: Martin K. Petersen

target: use bvec_set_page to initialize bvecs

2023-02-03T15:20:55+00:00

Use the bvec_set_page helper to initialize bvecs. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Link: https://lore.kernel.org/r/20230203150634.3199647-6-hch@lst.de Signed-off-by: Jens Axboe

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2022-12-14T16:58:51+00:00

Pull SCSI updates from James Bottomley: "Updates to the usual drivers (target, ufs, smartpqi, lpfc). There are some core changes, mostly around reworking some of our user context assumptions in device put and moving some code around. The remaining updates are bug fixes and minor changes" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (138 commits) scsi: sg: Fix get_user() in call sg_scsi_ioctl() scsi: megaraid_sas: Fix some spelling mistakes in comment scsi: core: Use SCSI_SCAN_INITIAL in do_scsi_scan_host() scsi: core: Use SCSI_SCAN_RESCAN in __scsi_add_device() scsi: ufs: ufs-mediatek: Remove unnecessary return code scsi: ufs: core: Fix the polling implementation scsi: libsas: Do not export sas_ata_wait_after_reset() scsi: hisi_sas: Fix SATA devices missing issue during I_T nexus reset scsi: libsas: Add smp_ata_check_ready_type() scsi: Revert "scsi: hisi_sas: Don't send bcast events from HW during nexus HA reset" scsi: Revert "scsi: hisi_sas: Drain bcast events in hisi_sas_rescan_topology()" scsi: ufs: ufs-mediatek: Modify the return value scsi: ufs: ufs-mediatek: Remove unneeded code scsi: device_handler: alua: Call scsi_device_put() from non-atomic context scsi: device_handler: alua: Revert "Move a scsi_device_put() call out of alua_check_vpd()" scsi: snic: Fix possible UAF in snic_tgt_create() scsi: qla2xxx: Initialize vha->unknown_atio_[list, work] for NPIV hosts scsi: qla2xxx: Remove duplicate of vha->iocb_work initialization scsi: fcoe: Fix transport not deattached when fcoe_if_init() fails scsi: sd: Use 16-byte SYNCHRONIZE CACHE on ZBC devices ...

use less confusing names for iov_iter direction initializers

2022-11-25T18:01:55+00:00

READ/WRITE proved to be actively confusing - the meanings are "data destination, as used with read(2)" and "data source, as used with write(2)", but people keep interpreting those as "we read data from it" and "we write data to it", i.e. exactly the wrong way. Call them ITER_DEST and ITER_SOURCE - at least that is harder to misinterpret... Signed-off-by: Al Viro

[target] fix iov_iter_bvec() "direction" argument

2022-11-25T18:01:21+00:00

Signed-off-by: Al Viro

scsi: target: core: Send max transfer length in blocks

2022-11-24T02:16:19+00:00

A MAXIMUM TRANSFER LENGTH value indicates the maximum transfer length in logical blocks that the device server accepts for a single command. Fix function sending the length in sectors instead of blocks. This patch also removes the special casing for fileio in block_size_store since this logic in now unified in spc_emulate_evpd_b0() for all backends. Reviewed-by: Konstantin Shelekhin Reviewed-by: Dmitriy Bogdanov Signed-off-by: Anastasia Kovaleva Link: https://lore.kernel.org/r/20221114102500.88892-2-a.kovaleva@yadro.com Reviewed-by: Mike Christie Signed-off-by: Martin K. Petersen

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2022-08-05T02:47:37+00:00

Pull SCSI updates from James Bottomley: "Updates to the usual drivers (ufs, qla2xx, target, lpfc, smartpqi, mpi3mr). The main driver change that might cause issues on down the road is the conversion of some of our oldest surviving drivers to the DMA API (should only affect m68k). The only major core change is the rework of async resume; the rest are either completely trivial or for updating deprecated APIs" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (195 commits) scsi: target: Remove XDWRITEREAD emulated support scsi: megaraid: Remove the static variable initialisation scsi: ch: Do not initialise statics to 0 scsi: ufs: core: Fix spelling mistake "Cannnot" -> "Cannot" scsi: target: iscsi: Do not require target authentication scsi: target: iscsi: Allow AuthMethod=None scsi: target: iscsi: Support base64 in CHAP scsi: target: iscsi: Add support for extended CDB AHS scsi: ufs: dt-bindings: Add SC8280XP binding scsi: target: iscsi: Fix clang -Wformat warnings scsi: ufs: core: Read device property for ref clock scsi: libsas: Resume SAS host for phy reset or enable via sysfs scsi: hisi_sas: Modify v3 HW SATA completion error processing scsi: hisi_sas: Relocate DMA unmap of SMP task scsi: hisi_sas: Remove unnecessary variable to hold DMA map elements scsi: hisi_sas: Call hisi_sas_slave_configure() from slave_configure_v3_hw() scsi: mpi3mr: Delete a stray tab scsi: mpi3mr: Unlock on error path scsi: mpi3mr: Reduce VD queue depth on detecting throttling scsi: mpi3mr: Resource Based Metering ...

scsi: target: Add file configure_unmap callout

2022-07-07T20:53:52+00:00

Move file's UNMAP setup code to a configure_unmap callout. Link: https://lore.kernel.org/r/20220628200230.15052-5-michael.christie@oracle.com Reviewed-by: Christoph Hellwig Signed-off-by: Mike Christie Signed-off-by: Martin K. Petersen

scsi: target: Remove incorrect zero blocks WRITE_SAME check

2022-07-07T20:53:52+00:00

We use WSNZ=1 so if we get a WRITE_SAME with zero logical blocks we are supposed to fail it. We do this check and failure in target_core_sbc.c before calling into the backend, so we can remove the incorrect check in target_core_file. Link: https://lore.kernel.org/r/20220628200230.15052-2-michael.christie@oracle.com Reviewed-by: Christoph Hellwig Signed-off-by: Mike Christie Signed-off-by: Martin K. Petersen