exfat: clean up new entry on add entry failure

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exfat_add_entry() initializes a new directory entry set before writing it
with exfat_put_dentry_set().  If the write fails, mkdir/create returns an
error but a partially written entry may be left behind.

For non-zero-size directories, the failure also happens after a cluster
has been allocated for the new directory.  Clean up the new entry
best-effort, and free the newly allocated directory cluster only when the
cleanup writeback succeeds.  This avoids freeing a cluster that may still
be referenced by an on-disk entry if the cleanup fails.

Signed-off-by: Yichong Chen <chenyichong@uniontech.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>

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Yichong Chen 2026-07-29 10:25:43 +08:00 • committed by Namjae Jeon

parent ce12a39bed

commit 0901a71e8c

1 changed files with 16 additions and 1 deletions

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fs/exfat/namei.c

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