Messages in this thread Patch in this message | | | From | Oleg Drokin <> | Subject | [PATCH 20/47] staging/lustre/llite: issue OST_SYNC for fsync() | Date | Sun, 27 Apr 2014 13:06:44 -0400 |
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From: Bobi Jam <bobijam.xu@intel.com>
The last parameter @datasync of fsync() has following indication: * if datasync=0, we'd always flush data and metadata * if datasync=1, we'd always flush data while does not flush modifed metadata unless that metadata is needed in order to allow a subsequent data retrieval to be correctly handled. For example, a change to the file size would require a metadata flush.
Lustre client can not tell the difference easily, and would issue MDS_SYNC and OST_SYNC in all cases.
Signed-off-by: Bobi Jam <bobijam.xu@intel.com> Reviewed-on: http://review.whamcloud.com/8684 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4388 Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com> Signed-off-by: Oleg Drokin <oleg.drokin@intel.com> --- drivers/staging/lustre/lustre/llite/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index c991ea5..872c878 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -2653,7 +2653,7 @@ int ll_fsync(struct file *file, loff_t start, loff_t end, int datasync) if (!err) ptlrpc_req_finished(req); - if (datasync && S_ISREG(inode->i_mode)) { + if (S_ISREG(inode->i_mode)) { struct ll_file_data *fd = LUSTRE_FPRIVATE(file); err = cl_sync_file_range(inode, 0, OBD_OBJECT_EOF, -- 1.8.5.3
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