Olaf Hering
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a9640fcdd4
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tools/hv: terminate fcopy daemon if read from uio fails
Terminate endless loop in reading fails, to avoid flooding syslog.
This happens if the state of "Guest services" integration service
is changed from "enabled" to "disabled" at runtime in the VM
settings. In this case pread returns EIO.
Also handle an interrupted system call, and continue in this case.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Reviewed-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Link: https://lore.kernel.org/r/20241105081437.15689-1-olaf@aepfle.de
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20241105081437.15689-1-olaf@aepfle.de>
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2024-12-09 18:44:14 +00:00 |
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Dexuan Cui
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cb1b78f1c7
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tools: hv: Fix a complier warning in the fcopy uio daemon
hv_fcopy_uio_daemon.c:436:53: warning: '%s' directive output may be truncated
writing up to 14 bytes into a region of size 10 [-Wformat-truncation=]
436 | snprintf(uio_dev_path, sizeof(uio_dev_path), "/dev/%s", uio_name);
Also added 'static' for the array 'desc[]'.
Fixes: 82b0945ce2 ("tools: hv: Add new fcopy application based on uio driver")
Cc: stable@vger.kernel.org # 6.10+
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Link: https://lore.kernel.org/r/20240910004433.50254-1-decui@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20240910004433.50254-1-decui@microsoft.com>
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2024-12-09 18:42:42 +00:00 |
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Zhu Jun
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94e86b174d
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tools/hv: Add memory allocation check in hv_fcopy_start
Added error handling for memory allocation failures
of file_name and path_name.
Signed-off-by: Zhu Jun <zhujun2@cmss.chinamobile.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Tested-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Link: https://lore.kernel.org/r/20240906091333.11419-1-zhujun2@cmss.chinamobile.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20240906091333.11419-1-zhujun2@cmss.chinamobile.com>
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2024-09-09 01:09:27 +00:00 |
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Saurabh Sengar
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82b0945ce2
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tools: hv: Add new fcopy application based on uio driver
New fcopy application using uio_hv_generic driver. This application
copies file from Hyper-V host to guest VM.
A big part of this code is copied from tools/hv/hv_fcopy_daemon.c
which this new application is replacing.
Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: Long Li <longli@microsoft.com>
Link: https://lore.kernel.org/r/1711788723-8593-6-git-send-email-ssengar@linux.microsoft.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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2024-04-11 14:55:53 +02:00 |
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