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| author |   Amir Goldstein <amir73il@gmail.com> | 2020-02-21 16:34:43 +0200 |
|---|---|---|
| committer |   Miklos Szeredi <mszeredi@redhat.com> | 2020-03-27 16:51:02 +0100 |
| commit | 4d314f7859dc1925ee28b4d4e74f6f3a80e6f34b (patch) | |
| tree | 0e312f220e3b75de7cc30d73861fdca455e6dfc9 /fs/overlayfs/ovl_entry.h | |
| parent | ovl: fix WARN_ON nlink drop to zero (diff) | |
| download | linux-dev-4d314f7859dc1925ee28b4d4e74f6f3a80e6f34b.tar.xz linux-dev-4d314f7859dc1925ee28b4d4e74f6f3a80e6f34b.zip | |
ovl: use a private non-persistent ino pool
There is no reason to deplete the system's global get_next_ino() pool for
overlay non-persistent inode numbers and there is no reason at all to
allocate non-persistent inode numbers for non-directories.
For non-directories, it is much better to leave i_ino the same as real
i_ino, to be consistent with st_ino/d_ino.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/overlayfs/ovl_entry.h')
| -rw-r--r-- | fs/overlayfs/ovl_entry.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/overlayfs/ovl_entry.h b/fs/overlayfs/ovl_entry.h index 89015ea822e7..5762d802fe01 100644 --- a/fs/overlayfs/ovl_entry.h +++ b/fs/overlayfs/ovl_entry.h @@ -75,6 +75,8 @@ struct ovl_fs { struct inode *indexdir_trap; /* -1: disabled, 0: same fs, 1..32: number of unused ino bits */ int xino_mode; + /* For allocation of non-persistent inode numbers */ + atomic_long_t last_ino; }; static inline struct ovl_fs *OVL_FS(struct super_block *sb) |