From: Hiroya Nozaki <nozaki.hiroya@xxxxxxxxxxxxxx> Because of a implementation of generic_perform_write(), write(2) may return 0 with no errno even if EDQUOT or ENOSPC actually happened in it. This patch fixes the issue with setting a proper errno to ci_result. Signed-off-by: Hiroya Nozaki <nozaki.hiroya@xxxxxxxxxxxxxx> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6732 Reviewed-on: http://review.whamcloud.com/15302 Reviewed-by: Bobi Jam <bobijam@xxxxxxxxxxx> Reviewed-by: Andreas Dilger <andreas.dilger@xxxxxxxxx> Reviewed-by: Oleg Drokin <oleg.drokin@xxxxxxxxx> Signed-off-by: James Simmons <jsimmons@xxxxxxxxxxxxx> --- drivers/staging/lustre/lustre/llite/rw26.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index ca45b44..c1b7409 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -478,6 +478,7 @@ static int ll_write_begin(struct file *file, struct address_space *mapping, lcc = ll_cl_find(file); if (!lcc) { + io = NULL; result = -EIO; goto out; } @@ -558,6 +559,8 @@ static int ll_write_begin(struct file *file, struct address_space *mapping, lu_ref_del(&page->cp_reference, "cl_io", io); cl_page_put(env, page); } + if (io) + io->ci_result = result; } else { *pagep = vmpage; *fsdata = lcc; @@ -627,6 +630,8 @@ static int ll_write_end(struct file *file, struct address_space *mapping, file->f_flags & O_SYNC || IS_SYNC(file_inode(file))) result = vvp_io_write_commit(env, io); + if (result < 0) + io->ci_result = result; return result >= 0 ? copied : result; } -- 1.7.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
