Cyrill Gorcunov <gorcu...@virtuozzo.com> writes:
> From: Jan Kara <j...@suse.cz> > > Use truncate_isize_extended() when hole is being created in a file so that > ->page_mkwrite() will get called for the partial tail page if it is > mmaped (see the first patch in the series for details). > > gorcunov@: > - ML d6320cbfc92910a3e5f10c42d98c231c98db4f60 > - https://jira.sw.ru/browse/PSBM-34383 > > Signed-off-by: Jan Kara <j...@suse.cz> > Signed-off-by: Theodore Ts'o <ty...@mit.edu> > Signed-off-by: Cyrill Gorcunov <gorcu...@virtuozzo.com> ACK > --- > fs/ext4/inode.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > Index: linux-pcs7.git/fs/ext4/inode.c > =================================================================== > --- linux-pcs7.git.orig/fs/ext4/inode.c > +++ linux-pcs7.git/fs/ext4/inode.c > @@ -4849,8 +4849,12 @@ int ext4_setattr(struct dentry *dentry, > ext4_orphan_del(NULL, inode); > goto err_out; > } > - } else > + } else { > + loff_t oldsize = inode->i_size; > + > i_size_write(inode, attr->ia_size); > + pagecache_isize_extended(inode, oldsize, inode->i_size); > + } > > /* > * Blocks are going to be removed from the inode. Wait
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