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authorMingming Cao <cmm@us.ibm.com>2009-01-22 18:13:05 +0100
committerJan Kara <jack@suse.cz>2009-03-26 02:18:34 +0100
commit60e58e0f30e723464c2a7d34b71b8675566c572d (patch)
tree2797ae1bccdad12d53c989a6dccea1c8ffd2bce3 /fs/quota
parentreiserfs: Remove unnecessary quota functions (diff)
downloadlinux-dev-60e58e0f30e723464c2a7d34b71b8675566c572d.tar.xz
linux-dev-60e58e0f30e723464c2a7d34b71b8675566c572d.zip
ext4: quota reservation for delayed allocation
Uses quota reservation/claim/release to handle quota properly for delayed allocation in the three steps: 1) quotas are reserved when data being copied to cache when block allocation is defered 2) when new blocks are allocated. reserved quotas are converted to the real allocated quota, 2) over-booked quotas for metadata blocks are released back. Signed-off-by: Mingming Cao <cmm@us.ibm.com> Acked-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Jan Kara <jack@suse.cz>
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