ext4: fast commit may miss tracking unwritten range during ftruncate
If use FALLOC_FL_KEEP_SIZE to alloc unwritten range at bottom, the inode->i_size will not include the unwritten range. When call ftruncate with fast commit enabled, it will miss to track the unwritten range. Change to trace the full range during ftruncate. Signed-off-by:Xin Yin <yinxin.x@bytedance.com> Reviewed-by:
Harshad Shirwadkar <harshadshirwadkar@gmail.com> Link: https://lore.kernel.org/r/20211223032337.5198-3-yinxin.x@bytedance.com Signed-off-by:
Theodore Ts'o <tytso@mit.edu> Cc: stable@kernel.org
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