BMC/Intel-BMC/linux.git/fs/nfs/flexfilelayout/flexfilelayout.c, branch dev-5.2

Revert "NFSv4/flexfiles: Abort I/O early if the layout segment was invalidated"

2019-09-06T08:23:45+00:00

commit d5711920ec6e578f51db95caa6f185f5090b865e upstream. This reverts commit a79f194aa4879e9baad118c3f8bb2ca24dbef765. The mechanism for aborting I/O is racy, since we are not guaranteed that the request is asleep while we're changing both task->tk_status and task->tk_action. Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org # v5.1 Signed-off-by: Greg Kroah-Hartman

treewide: Add SPDX license identifier for more missed files

2019-05-21T08:50:45+00:00

Add SPDX license identifiers to all files which: - Have no license information of any form - Have MODULE_LICENCE("GPL*") inside which was used in the initial scan/conversion to ignore the file These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

NFS: Add a helper to return a pointer to the open context of a struct nfs_page

2019-04-25T18:18:15+00:00

Add a helper for when we remove the explicit pointer to the open context. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker

pNFS: Add tracking to limit the number of pNFS retries

2019-04-25T18:18:14+00:00

When the client is reading or writing using pNFS, and hits an error on the DS, then it typically sends a LAYOUTERROR and/or LAYOUTRETURN to the MDS, before redirtying the failed pages, and going for a new round of reads/writebacks. The problem is that if the server has no way to fix the DS, then we may need a way to interrupt this loop after a set number of attempts have been made. This patch adds an optional module parameter that allows the admin to specify how many times to retry the read/writeback process before failing with a fatal error. The default behaviour is to retry forever. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker

pNFS/flexfiles: Fix layoutstats handling during read failovers

2019-03-23T16:03:58+00:00

During a read failover, we may end up changing the value of the pgio_mirror_idx, so make sure that we record the layout stats before that update. Signed-off-by: Trond Myklebust

NFS/flexfile: Simplify nfs4_ff_layout_select_ds_stateid()

2019-03-02T03:37:38+00:00

Pass in a pointer to the mirror rather than forcing another array access. Signed-off-by: Trond Myklebust

NFS/flexfile: Simplify nfs4_ff_layout_ds_version()

2019-03-02T03:37:38+00:00

Pass in a pointer to the mirror rather than forcing another array access. Signed-off-by: Trond Myklebust

NFS/flexfiles: Simplify ff_layout_get_ds_cred()

2019-03-02T03:37:38+00:00

Pass in a pointer to the mirror rather than forcing another array access. Signed-off-by: Trond Myklebust

NFS/flexfiles: Simplify nfs4_ff_find_or_create_ds_client()

2019-03-02T03:37:38+00:00

Pass in a pointer to the mirror rather than forcing another array access. Signed-off-by: Trond Myklebust

NFS/flexfiles: Simplify nfs4_ff_layout_select_ds_fh()

2019-03-02T03:37:38+00:00

Pass in a pointer to the mirror rather than having to retrieve it from the array and then verify the resulting pointer. Signed-off-by: Trond Myklebust