From: Ronnie Sahlberg <[email protected]> [ Upstream commit c6cc4c5a72505a0ecefc9b413f16bec512f38078 ]
RHBZ: 1848178 Some calls that set attributes, like utimensat(), are not supposed to return -EINTR and thus do not have handlers for this in glibc which causes us to leak -EINTR to the applications which are also unprepared to handle it. For example tar will break if utimensat() return -EINTR and abort unpacking the archive. Other applications may break too. To handle this we add checks, and retry, for -EINTR in cifs_setattr() Signed-off-by: Ronnie Sahlberg <[email protected]> Signed-off-by: Steve French <[email protected]> Signed-off-by: Sasha Levin <[email protected]> --- fs/cifs/inode.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 7708175062eba..8c0b7f40714ba 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -2885,13 +2885,18 @@ cifs_setattr(struct dentry *direntry, struct iattr *attrs) { struct cifs_sb_info *cifs_sb = CIFS_SB(direntry->d_sb); struct cifs_tcon *pTcon = cifs_sb_master_tcon(cifs_sb); + int rc, retries = 0; - if (pTcon->unix_ext) - return cifs_setattr_unix(direntry, attrs); - - return cifs_setattr_nounix(direntry, attrs); + do { + if (pTcon->unix_ext) + rc = cifs_setattr_unix(direntry, attrs); + else + rc = cifs_setattr_nounix(direntry, attrs); + retries++; + } while (is_retryable_error(rc) && retries < 2); /* BB: add cifs_setattr_legacy for really old servers */ + return rc; } #if 0 -- 2.25.1
