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| author | Carlos Maiolino <cem@kernel.org> | 2023-07-25 16:45:08 +0200 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2023-08-09 09:15:39 +0200 |
| commit | e09764cff44b5d31c2ca5477444565e3080637d2 (patch) | |
| tree | 27c4d231ad28d0cd218536e9e740910c4be658df /include/linux/shmem_fs.h | |
| parent | eafc474e202978ac735c551d5ee1eb8c02e2be54 (diff) | |
| download | linux-stable-e09764cff44b5d31c2ca5477444565e3080637d2.tar.gz linux-stable-e09764cff44b5d31c2ca5477444565e3080637d2.tar.bz2 linux-stable-e09764cff44b5d31c2ca5477444565e3080637d2.zip | |
shmem: quota support
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>
Diffstat (limited to 'include/linux/shmem_fs.h')
| -rw-r--r-- | include/linux/shmem_fs.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h index 7abfaf70b58a..1a568a0f542f 100644 --- a/include/linux/shmem_fs.h +++ b/include/linux/shmem_fs.h @@ -31,6 +31,9 @@ struct shmem_inode_info { atomic_t stop_eviction; /* hold when working on inode */ struct timespec64 i_crtime; /* file creation time */ unsigned int fsflags; /* flags for FS_IOC_[SG]ETFLAGS */ +#ifdef CONFIG_TMPFS_QUOTA + struct dquot *i_dquot[MAXQUOTAS]; +#endif struct inode vfs_inode; }; @@ -184,4 +187,9 @@ extern int shmem_mfill_atomic_pte(pmd_t *dst_pmd, #define SHMEM_QUOTA_MAX_SPC_LIMIT 0x7fffffffffffffffLL /* 2^63-1 */ #define SHMEM_QUOTA_MAX_INO_LIMIT 0x7fffffffffffffffLL +#ifdef CONFIG_TMPFS_QUOTA +extern const struct dquot_operations shmem_quota_operations; +extern struct quota_format_type shmem_quota_format; +#endif /* CONFIG_TMPFS_QUOTA */ + #endif |