[PATCH 0/2] exfat: fix cluster allocation accounting and locking

[Chi Zhiling]

From: Chi Zhiling <chizhiling@xxxxxxxxxx>

Patch 1 fixes sbi->used_clusters accounting when cluster allocation
fails partway through. This can cause the counter to underflow.
The issue is caught by generic/476.

Patch 2 takes bitmap_lock before checking and allocating clusters.


Chi Zhiling (2):
  exfat: fix used_clusters accounting during cluster allocation
  exfat: take bitmap_lock at the start of exfat_alloc_cluster()

 fs/exfat/fatent.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

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2.53.0