ext4: remove wait for unwritten extent conversion from ext4_truncate()

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Since PageWriteback bit is now cleared after extents are converted
from unwritten to written ones, we have full exclusion of writeback
path from truncate (truncate_inode_pages() waits for PageWriteback
bits to get cleared on all invalidated pages).  Exclusion from DIO
path is achieved by inode_dio_wait() call in ext4_setattr().  So
there's no need to wait for extent convertion in ext4_truncate()
anymore.

Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

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Jan Kara 2013-06-04 14:30:00 -04:00 • committed by Theodore Ts'o

parent e83403959f

commit a115f749c1

2 changed files with 8 additions and 7 deletions

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6

fs/ext4/inode.c

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9

fs/ext4/page-io.c

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