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| author | Miklos Szeredi <mszeredi@redhat.com> | 2022-09-24 07:00:00 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2022-09-24 07:00:00 +0200 |
| commit | 863f144f12add1f4eab80b70561a90857c524a8b (patch) | |
| tree | e537ccaee9ef0a552e610024357cfa5ad53b5516 /Documentation/filesystems/vfs.rst | |
| parent | 9751b338656f05a0ce918befd5118fcd970c71c6 (diff) | |
| download | linux-863f144f12add1f4eab80b70561a90857c524a8b.tar.gz linux-863f144f12add1f4eab80b70561a90857c524a8b.tar.bz2 linux-863f144f12add1f4eab80b70561a90857c524a8b.zip | |
vfs: open inside ->tmpfile()
This is in preparation for adding tmpfile support to fuse, which requires
that the tmpfile creation and opening are done as a single operation.
Replace the 'struct dentry *' argument of i_op->tmpfile with
'struct file *'.
Call finish_open_simple() as the last thing in ->tmpfile() instances (may
be omitted in the error case).
Change d_tmpfile() argument to 'struct file *' as well to make callers more
readable.
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'Documentation/filesystems/vfs.rst')
| -rw-r--r-- | Documentation/filesystems/vfs.rst | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/filesystems/vfs.rst b/Documentation/filesystems/vfs.rst index 6cd6953e175b..71b0b8114b18 100644 --- a/Documentation/filesystems/vfs.rst +++ b/Documentation/filesystems/vfs.rst @@ -439,7 +439,7 @@ As of kernel 2.6.22, the following members are defined: void (*update_time)(struct inode *, struct timespec *, int); int (*atomic_open)(struct inode *, struct dentry *, struct file *, unsigned open_flag, umode_t create_mode); - int (*tmpfile) (struct user_namespace *, struct inode *, struct dentry *, umode_t); + int (*tmpfile) (struct user_namespace *, struct inode *, struct file *, umode_t); int (*set_acl)(struct user_namespace *, struct inode *, struct posix_acl *, int); int (*fileattr_set)(struct user_namespace *mnt_userns, struct dentry *dentry, struct fileattr *fa); @@ -589,7 +589,9 @@ otherwise noted. ``tmpfile`` called in the end of O_TMPFILE open(). Optional, equivalent to atomically creating, opening and unlinking a file in given - directory. + directory. On success needs to return with the file already + open; this can be done by calling finish_open_simple() right at + the end. ``fileattr_get`` called on ioctl(FS_IOC_GETFLAGS) and ioctl(FS_IOC_FSGETXATTR) to |