Messages in this thread Patch in this message | | | Subject | Re: [PATCH v3 1/1] vfs: iversion truncate bug fix | From | Mimi Zohar <> | Date | Thu, 22 Dec 2011 08:26:30 -0500 |
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On Thu, 2011-12-22 at 12:54 +0200, Dmitry Kasatkin wrote: > When a file is truncated with truncate()/ftruncate() and then closed, > iversion is not updated. This patch uses ATTR_SIZE flag as an indication > to increment iversion. > > Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Acked-by: Mimi Zohar <zohar@us.ibm.com> (Stable should be cc'ed on this patch.)
thanks,
Mimi
> --- > fs/attr.c | 5 +++++ > 1 files changed, 5 insertions(+), 0 deletions(-) > > diff --git a/fs/attr.c b/fs/attr.c > index 7ee7ba4..b8f55c4 100644 > --- a/fs/attr.c > +++ b/fs/attr.c > @@ -176,6 +176,11 @@ int notify_change(struct dentry * dentry, struct iattr * attr) > return -EPERM; > } > > + if ((ia_valid & ATTR_SIZE) && IS_I_VERSION(inode)) { > + if (attr->ia_size != inode->i_size) > + inode_inc_iversion(inode); > + } > + > if ((ia_valid & ATTR_MODE)) { > mode_t amode = attr->ia_mode; > /* Flag setting protected by i_mutex */
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