shmem: quota support

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Now the basic infra-structure is in place, enable quota support for tmpfs.

This offers user and group quotas to tmpfs (project quotas will be added
later). Also, as other filesystems, the tmpfs quota is not supported
within user namespaces yet, so idmapping is not translated.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Message-Id: <20230725144510.253763-6-cem@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>

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Carlos Maiolino 2023-07-25 16:45:08 +02:00 • committed by Christian Brauner

parent eafc474e20

commit e09764cff4

3 changed files with 201 additions and 8 deletions

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15

Documentation/filesystems/tmpfs.rst

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8

include/linux/shmem_fs.h

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186

mm/shmem.c

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