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Ungating the clock asynchronously causes ufshcd_queuecommand() to return SCSI_MLQUEUE_HOST_BUSY and hence causes commands to be requeued. This is suboptimal. Allow ufshcd_queuecommand() to sleep such that clock ungating does not trigger command requeuing. Remove the ufshcd_scsi_block_requests() and ufshcd_scsi_unblock_requests() calls because these are no longer needed. The flush_work(&hba->clk_gating.ungate_work) call is sufficient to make the SCSI core wait for clock ungating to complete. Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Link: https://lore.kernel.org/r/20230529202640.11883-6-bvanassche@acm.org Reviewed-by: Bean Huo <beanhuo@micron.com> Reviewed-by: Bao D. Nguyen <quic_nguyenb@quicinc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
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arch | ||
block | ||
certs | ||
crypto | ||
Documentation | ||
drivers | ||
fs | ||
include | ||
init | ||
io_uring | ||
ipc | ||
kernel | ||
lib | ||
LICENSES | ||
mm | ||
net | ||
rust | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | ||
.cocciconfig | ||
.get_maintainer.ignore | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
.rustfmt.toml | ||
COPYING | ||
CREDITS | ||
Kbuild | ||
Kconfig | ||
MAINTAINERS | ||
Makefile | ||
README |
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.