admin/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2025-12-07 20:06:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

NFSD: Use vfs_iocb_iter_write()

Browse Source 
Refactor: Enable the use of IOCB flags to control NFSD's individual
write operations. This allows the eventual use of atomic, uncached,
direct, or asynchronous writes.

Suggested-by: NeilBrown <neil@brown.name>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: NeilBrown <neil@brown.name>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever
2025-06-13 16:08:47 -04:00
parent 37fe6f1be5
commit 3f3503adb3
1 changed files with 5 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
fs/nfsd/vfs.c
View File

@@ -1173,15 +1173,14 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp,
struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
struct file *file = nf->nf_file;
struct super_block *sb = file_inode(file)->i_sb;
struct kiocb kiocb;
struct svc_export *exp;
struct iov_iter iter;
errseq_t since;
__be32 nfserr;
int host_err;
loff_t pos = offset;
unsigned long exp_op_flags = 0;
unsigned int pflags = current->flags;
rwf_t flags = 0;
bool restore_flags = false;
unsigned int nvecs;
@@ -1207,16 +1206,17 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp,
if (!EX_ISSYNC(exp))
stable = NFS_UNSTABLE;
init_sync_kiocb(&kiocb, file);
kiocb.ki_pos = offset;
if (stable && !fhp->fh_use_wgather)
flags |= RWF_SYNC;
kiocb.ki_flags |= IOCB_DSYNC;
nvecs = xdr_buf_to_bvec(rqstp->rq_bvec, rqstp->rq_maxpages, payload);
iov_iter_bvec(&iter, ITER_SOURCE, rqstp->rq_bvec, nvecs, *cnt);
since = READ_ONCE(file->f_wb_err);
if (verf)
nfsd_copy_write_verifier(verf, nn);
host_err = vfs_iter_write(file, &iter, &pos, flags);
host_err = vfs_iocb_iter_write(file, &kiocb, &iter);
if (host_err < 0) {
commit_reset_write_verifier(nn, rqstp, host_err);
goto out_nfserr;