ceph: improving efficiency of syncfs
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Web: https://git.kernel.org/torvalds/c/16515a6d54183349b858b9c05e483afc55fa7948 Commit: 16515a6d54183349b858b9c05e483afc55fa7948 Parent: affff07739392920d3d2095212c72af220481b95 Refname: refs/heads/master Author: Chengguang Xu <[email protected]> AuthorDate: Tue Jan 30 10:02:30 2018 +0800 Committer: Ilya Dryomov <[email protected]> CommitDate: Tue Jan 30 21:10:15 2018 +0100 ceph: improving efficiency of syncfs write_inode() could be called variety of reasons, in the case of syncfs(2) there is no need to wait for flush getting completed in write_inode(), ->sync_fs is for guaranteeing flush completion for all inodes at that point. Signed-off-by: Chengguang Xu <[email protected]> Reviewed-by: "Yan, Zheng" <[email protected]> Signed-off-by: Ilya Dryomov <[email protected]> --- fs/ceph/caps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 8e66fb0e743d..6582c4507e6c 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -2207,7 +2207,7 @@ int ceph_write_inode(struct inode *inode, struct writeback_control *wbc) u64 flush_tid; int err = 0; int dirty; - int wait = wbc->sync_mode == WB_SYNC_ALL; + int wait = (wbc->sync_mode == WB_SYNC_ALL && !wbc->for_sync); dout("write_inode %p wait=%d\n", inode, wait); if (wait) { -- To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html