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| author | Christian Brauner <brauner@kernel.org> | 2026-07-28 14:04:26 +0200 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2026-07-28 14:08:52 +0200 |
| commit | 974d0be0cb8e48d63b9d413a2e1a8fba16cd2583 (patch) | |
| tree | f4eb5eafaa8d02fc52201678d0273436845adce8 | |
| parent | 28cb64a67b8ff2785fc85249ae74ff475fd2ca99 (diff) | |
| download | linux-next-974d0be0cb8e48d63b9d413a2e1a8fba16cd2583.tar.gz linux-next-974d0be0cb8e48d63b9d413a2e1a8fba16cd2583.zip | |
writeback: Export __inode_attach_wb()
Commit c26339e1df33 ("ext4: Fix data integrity writeout issues in
nojournal mode") made ext4_mark_iloc_dirty() attach the inode to a wb
before marking it for metadata writeback in nojournal mode. This is the
first modular caller of inode_attach_wb() - all users of
__inode_attach_wb() so far were built-in - so with CONFIG_EXT4_FS=m and
CONFIG_CGROUP_WRITEBACK=y the build now fails at the modpost stage:
ERROR: modpost: "__inode_attach_wb" [fs/ext4/ext4.ko] undefined!
Export the symbol. Use EXPORT_SYMBOL_GPL() to match the other cgroup
writeback exports in this file.
Fixes: c26339e1df33 ("ext4: Fix data integrity writeout issues in nojournal mode")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202607281811.F3c6kRvX-lkp@intel.com/
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
| -rw-r--r-- | fs/fs-writeback.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 9d96357731a3..71dd618db075 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -299,6 +299,7 @@ void __inode_attach_wb(struct inode *inode, struct folio *folio) if (unlikely(cmpxchg(&inode->i_wb, NULL, wb))) wb_put(wb); } +EXPORT_SYMBOL_GPL(__inode_attach_wb); /** * inode_cgwb_move_to_attached - put the inode onto wb->b_attached list |