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| -rw-r--r-- | Documentation/filesystems/porting.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/filesystems/porting.rst b/Documentation/filesystems/porting.rst index 3397937ed838..bd4128ccbb67 100644 --- a/Documentation/filesystems/porting.rst +++ b/Documentation/filesystems/porting.rst @@ -1334,3 +1334,13 @@ end_creating() and the parent will be unlocked precisely when necessary. kill_litter_super() is gone; convert to DCACHE_PERSISTENT use (as all in-tree filesystems have done). + +--- + +**mandatory** + +readlink_copy() now requires link length as the 4th argument. Said length needs +to match what strlen() would return if it was ran on the string. + +However, if the string is freely accessible for the duration of inode's +lifetime, consider using inode_set_cached_link() instead. |