Soumya has uploaded this change for review. ( https://review.gerrithub.io/c/ffilz/nfs-ganesha/+/468806 ) Change subject: WIP: FSAL_GLUSTER: Improving fd handling during OPEN and COMMIT ...................................................................... WIP: FSAL_GLUSTER: Improving fd handling during OPEN and COMMIT a) At present, in FSAL_GLUSTER, while opening a file the very first time, we use two APIs * glfs_h_creat to create (file &)handle * glfs_h_open to fetch a file descriptor This results in opening the file twice (once during create and another during open) which is inefficient and also may result in EACCESS while creating a read-only file. To address that, have added a gluster API "glfs_h_creat_open" which creates and returns both handle and glfd. - https://review.gluster.org/#/c/glusterfs/+/23448 This API can be used to atomically fetch both handle and glfd, thus improving performance. b) In addition, for stateless operations like COMMIT etc, FSAL tries to open a new fd. This again may result in EACCESS errors while operating on read-only files. More details are captured in https://bugzilla.redhat.com/show_bug.cgi?id=1735480#c1 To address this issue, we can save the fd created during open2 as globalfd, thus improving performance and also providing correctness as expected by POSIX. Change-Id: I55f734875e9d803148d2a19bf090f04d537f9ebf Signed-off-by: Soumya Koduri <skoduri(a)redhat.com&gt; --- M src/FSAL/FSAL_GLUSTER/handle.c 1 file changed, 178 insertions(+), 25 deletions(-) git pull ssh://review.gerrithub.io:29418/ffilz/nfs-ganesha refs/changes/06/468806/1 -- To view, visit https://review.gerrithub.io/c/ffilz/nfs-ganesha/+/468806 To unsubscribe, or for help writing mail filters, visit https://review.gerrithub.io/settings Gerrit-Project: ffilz/nfs-ganesha Gerrit-Branch: next Gerrit-Change-Id: I55f734875e9d803148d2a19bf090f04d537f9ebf Gerrit-Change-Number: 468806 Gerrit-PatchSet: 1 Gerrit-Owner: Soumya <skoduri(a)redhat.com&gt; Gerrit-MessageType: newchange