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How to create a virtual file in linux (or block device) (through code, C/++ or Python) that I can hook into read/write/etc?

score 116 · Answer 1 · 2023-12-30T13:16:01.070000

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116

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How to create a virtual file in linux (or block device) (through code, C/++ or Python) that I can hook into read/write/etc?

116 views Asked by mo FEAR At 30 December 2023 at 13:16

score 79 · Answer 2 · 2023-12-24T19:34:33.333000

A file with actual size 1 byte uses 8 blocks of 4096 bytes on the filesystem

79 views Asked by yossi-matkal At 24 December 2023 at 19:34

score 131 · Answer 3 · 2023-12-17T01:30:53.257000

Linux kernel module for block device redirect freezes in make_request on submit_bio/submit_bio_wait

131 views Asked by Ivan Morozko At 17 December 2023 at 01:30

score 54 · Answer 4 · 2023-11-29T08:28:57.507000

Is the `bv_len` field of `struct bio_vec` necessarily a multiple of the device's sector size?

54 views Asked by Diogo Landau At 29 November 2023 at 08:28

score 134 · Answer 5 · 2023-11-09T10:52:01.070000

How does a file-system write its metadata to block-devices?

134 views Asked by Marco At 09 November 2023 at 10:52

score 111 · Answer 6 · 2023-10-23T10:36:44.717000

How to allow nbd devices to submit io requests simultaneously more than physical cpu cores?

111 views Asked by pPanda_beta At 23 October 2023 at 10:36

score 85 · Answer 7 · 2023-10-12T04:38:26.283000

Linux Kernel: What is the mapping of block device sectors to memory pages in struct bio?

85 views Asked by linkfire At 12 October 2023 at 04:38

score 93 · Answer 8 · 2023-09-18T15:08:37.393000

What is the advantage of using kernel level buffering for writing files

93 views Asked by Marco At 18 September 2023 at 15:08

score 84 · Answer 9 · 2023-09-15T12:46:17.730000

How does the operating system handle I/O writes, that are not a multiple of the block device's sector-size?

84 views Asked by Marco At 15 September 2023 at 12:46

score 131 · Answer 10 · 2023-08-13T15:59:02.390000

How does a linux block driver ensure all I/O has finished before unloading

131 views Asked by Reinstate Monica At 13 August 2023 at 15:59

score 45 · Answer 11 · 2023-08-02T15:08:07.357000

why does not btt in blktrace tool report any data

45 views Asked by Jun At 02 August 2023 at 15:08

score 125 · Answer 12 · 2023-07-21T07:21:44.043000

Replication mode Protocol C in LinBit DRBD

125 views Asked by Killa At 21 July 2023 at 07:21

score 103 · Answer 13 · 2023-05-09T10:53:13.323000

how to backup raw- / kvm-device directly over the network

103 views Asked by philipp At 09 May 2023 at 10:53

score 1177 · Answer 14 · 2023-05-04T06:12:56.900000

Getting 'Invalid argument' error when using IOCTL

1.1k views Asked by Sumit Patil At 04 May 2023 at 06:12

score 314 · Answer 15 · 2023-04-28T12:09:32.647000

GNU/Linux systemd/sd-device problems creating and filtering an sd_device_enumerator

314 views Asked by AudioBubble At 28 April 2023 at 12:09

score 79 · Answer 16 · 2023-03-20T04:40:10.727000

How to check block device supports `nowait` or not

79 views Asked by YjyJeff At 20 March 2023 at 04:40

score 341 · Answer 17 · 2022-11-27T12:05:27.993000

How to programmatically find mount/eject usb device on macOS?

341 views Asked by puris At 27 November 2022 at 12:05

score 168 · Answer 18 · 2022-10-20T02:51:27.177000

How to get a list of all of the block devices on a Linux system using OCaml's stdlib?

168 views Asked by Rawley Fowler At 20 October 2022 at 02:51

score 379 · Answer 19 · 2022-10-07T15:34:10.270000

Is block device IO buffered?

379 views Asked by dazed_and_confused At 07 October 2022 at 15:34

score 73 · Answer 20 · 2022-10-07T08:27:21.313000

Why du command is showing 501MiB?

73 views Asked by Bey Réda At 07 October 2022 at 08:27

TechQA.

List Question

How to create a virtual file in linux (or block device) (through code, C/++ or Python) that I can hook into read/write/etc?

A file with actual size 1 byte uses 8 blocks of 4096 bytes on the filesystem

Linux kernel module for block device redirect freezes in make_request on submit_bio/submit_bio_wait

Is the `bv_len` field of `struct bio_vec` necessarily a multiple of the device's sector size?

How does a file-system write its metadata to block-devices?

How to allow nbd devices to submit io requests simultaneously more than physical cpu cores?

Linux Kernel: What is the mapping of block device sectors to memory pages in struct bio?

What is the advantage of using kernel level buffering for writing files

How does the operating system handle I/O writes, that are not a multiple of the block device's sector-size?

How does a linux block driver ensure all I/O has finished before unloading

why does not btt in blktrace tool report any data

Replication mode Protocol C in LinBit DRBD

how to backup raw- / kvm-device directly over the network

Getting 'Invalid argument' error when using IOCTL

GNU/Linux systemd/sd-device problems creating and filtering an sd_device_enumerator

How to check block device supports `nowait` or not

How to programmatically find mount/eject usb device on macOS?

How to get a list of all of the block devices on a Linux system using OCaml's stdlib?

Is block device IO buffered?

Why du command is showing 501MiB?

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