sysctl: Create pipe-max-size converter using sysctl UINT macros

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Create a converter for the pipe-max-size proc_handler using the
SYSCTL_UINT_CONV_CUSTOM. Move SYSCTL_CONV_IDENTITY macro to the sysctl
header to make it available for pipe size validation. Keep returning
-EINVAL when (val == 0) by using a range checking converter and setting
the minimal valid value (extern1) to SYSCTL_ONE. Keep round_pipe_size by
passing it as the operation for SYSCTL_USER_TO_KERN_INT_CONV.

Signed-off-by: Joel Granados <joel.granados@kernel.org>

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This commit is contained in:

Joel Granados 2025-10-14 14:21:03 +02:00

parent 4639faaa60

commit 30baaeb685

3 changed files with 7 additions and 22 deletions

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26

fs/pipe.c

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1

include/linux/sysctl.h

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2

kernel/sysctl.c

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