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staging: lustre: llite: eat -EEXIST on setting trusted.lov

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Tools like rsync, tar, cp may copy and restore the xattrs on a file.
The client previously ignored the setting of trusted.lov/lustre.lov
if the layout had already been specified, to avoid causing these
tools to fail for no reason.

For PFL files we still need to silently eat -EEXIST on setting these
attributes to avoid problems.

Signed-off-by: Bobi Jam <[email protected]>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-9484
Reviewed-on: https://review.whamcloud.com/27126
Reviewed-by: Dmitry Eremin <[email protected]>
Reviewed-by: Niu Yawei <[email protected]>
Reviewed-by: James Simmons <[email protected]>
Reviewed-by: Andreas Dilger <[email protected]>
Signed-off-by: James Simmons <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Bobi Jam 2018-04-16 00:15:00 -04:00 • committed by Greg Kroah-Hartman
commit 1305023874
1 changed files with 11 additions and 3 deletions
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14
drivers/staging/lustre/lustre/llite/xattr.c
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@ -254,12 +254,20 @@ static int ll_setstripe_ea(struct dentry *dentry, struct lov_user_md *lump,
lum_size = ll_lov_user_md_size(lump);
if (lum_size < 0 || size < lum_size)
return 0; /* b=10667: ignore error */
return -ERANGE;
rc = ll_lov_setstripe_ea_info(inode, dentry, it_flags, lump,
lum_size);
/* b=10667: rc always be 0 here for now */
rc = 0;
/**
* b=10667: ignore -EEXIST.
* Silently eat error on setting trusted.lov/lustre.lov
* attribute for platforms that added the default option
* to copy all attributes in 'cp' command. Both rsync and
* tar --xattrs also will try to set LOVEA for existing
* files.
*/
if (rc == -EEXIST)
rc = 0;
} else if (S_ISDIR(inode->i_mode)) {
rc = ll_dir_setstripe(inode, lump, 0);
}