diff options
Diffstat (limited to 'Documentation/filesystems/porting.rst')
-rw-r--r-- | Documentation/filesystems/porting.rst | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/Documentation/filesystems/porting.rst b/Documentation/filesystems/porting.rst index 85f590254f07..7233b04668fc 100644 --- a/Documentation/filesystems/porting.rst +++ b/Documentation/filesystems/porting.rst @@ -340,8 +340,8 @@ of those. Caller makes sure async writeback cannot be running for the inode whil ->drop_inode() returns int now; it's called on final iput() with inode->i_lock held and it returns true if filesystems wants the inode to be -dropped. As before, generic_drop_inode() is still the default and it's been -updated appropriately. generic_delete_inode() is also alive and it consists +dropped. As before, inode_generic_drop() is still the default and it's been +updated appropriately. inode_just_drop() is also alive and it consists simply of return 1. Note that all actual eviction work is done by caller after ->drop_inode() returns. @@ -1285,3 +1285,27 @@ rather than a VMA, as the VMA at this stage is not yet valid. The vm_area_desc provides the minimum required information for a filesystem to initialise state upon memory mapping of a file-backed region, and output parameters for the file system to set this state. + +--- + +**mandatory** + +Several functions are renamed: + +- kern_path_locked -> start_removing_path +- kern_path_create -> start_creating_path +- user_path_create -> start_creating_user_path +- user_path_locked_at -> start_removing_user_path_at +- done_path_create -> end_creating_path + +--- + +**mandatory** + +Calling conventions for vfs_parse_fs_string() have changed; it does *not* +take length anymore (value ? strlen(value) : 0 is used). If you want +a different length, use + + vfs_parse_fs_qstr(fc, key, &QSTR_LEN(value, len)) + +instead. |