ext3: Add replace-on-truncate hueristics for data=writeback mode
authorTheodore Ts'o <tytso@mit.edu>
Fri, 3 Apr 2009 05:34:35 +0000 (01:34 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Fri, 3 Apr 2009 05:34:35 +0000 (01:34 -0400)
commitf7ab34ea723ed304b19698efca85d6f40cecd99b
tree28a609a654a24bc40d694fd2ec87a1f785c97c79
parent512a004382f2c60d5c4f855476ba965adc00250c
ext3: Add replace-on-truncate hueristics for data=writeback mode

In data=writeback mode, start an asynchronous flush when closing a
file which had been previously truncated down to zero.  This lowers
the probability of data loss in the case of applications that attempt
to replace a file using truncate.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
fs/ext3/file.c
fs/ext3/inode.c
include/linux/ext3_fs.h