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Diffstat (limited to 'Documentation/filesystems/vfs.rst')
| -rw-r--r-- | Documentation/filesystems/vfs.rst | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/filesystems/vfs.rst b/Documentation/filesystems/vfs.rst index 2049bbf5e388..14c31eced416 100644 --- a/Documentation/filesystems/vfs.rst +++ b/Documentation/filesystems/vfs.rst @@ -441,6 +441,9 @@ As of kernel 2.6.22, the following members are defined: unsigned open_flag, umode_t create_mode); int (*tmpfile) (struct user_namespace *, struct inode *, struct dentry *, 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); + int (*fileattr_get)(struct dentry *dentry, struct fileattr *fa); }; Again, all methods are called without any locks being held, unless @@ -588,6 +591,18 @@ otherwise noted. atomically creating, opening and unlinking a file in given directory. +``fileattr_get`` + called on ioctl(FS_IOC_GETFLAGS) and ioctl(FS_IOC_FSGETXATTR) to + retrieve miscellaneous file flags and attributes. Also called + before the relevant SET operation to check what is being changed + (in this case with i_rwsem locked exclusive). If unset, then + fall back to f_op->ioctl(). + +``fileattr_set`` + called on ioctl(FS_IOC_SETFLAGS) and ioctl(FS_IOC_FSSETXATTR) to + change miscellaneous file flags and attributes. Callers hold + i_rwsem exclusive. If unset, then fall back to f_op->ioctl(). + The Address Space Object ======================== |