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Diffstat (limited to 'fs/nfsd/vfs.c')
-rw-r--r--fs/nfsd/vfs.c37
1 files changed, 31 insertions, 6 deletions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 0a82e3c033ee..5685c679dd93 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -16,6 +16,7 @@
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/splice.h>
+#include <linux/falloc.h>
#include <linux/fcntl.h>
#include <linux/namei.h>
#include <linux/delay.h>
@@ -533,6 +534,26 @@ __be32 nfsd4_set_nfs4_label(struct svc_rqst *rqstp, struct svc_fh *fhp,
}
#endif
+__be32 nfsd4_vfs_fallocate(struct svc_rqst *rqstp, struct svc_fh *fhp,
+ struct file *file, loff_t offset, loff_t len,
+ int flags)
+{
+ __be32 err;
+ int error;
+
+ if (!S_ISREG(file_inode(file)->i_mode))
+ return nfserr_inval;
+
+ err = nfsd_permission(rqstp, fhp->fh_export, fhp->fh_dentry, NFSD_MAY_WRITE);
+ if (err)
+ return err;
+
+ error = vfs_fallocate(file, flags, offset, len);
+ if (!error)
+ error = commit_metadata(fhp);
+
+ return nfserrno(error);
+}
#endif /* defined(CONFIG_NFSD_V4) */
#ifdef CONFIG_NFSD_V3
@@ -881,7 +902,7 @@ static __be32
nfsd_vfs_read(struct svc_rqst *rqstp, struct file *file,
loff_t offset, struct kvec *vec, int vlen, unsigned long *count)
{
- if (file->f_op->splice_read && rqstp->rq_splice_ok)
+ if (file->f_op->splice_read && test_bit(RQ_SPLICE_OK, &rqstp->rq_flags))
return nfsd_splice_read(rqstp, file, offset, count);
else
return nfsd_readv(file, offset, vec, vlen, count);
@@ -937,9 +958,10 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
int stable = *stablep;
int use_wgather;
loff_t pos = offset;
+ loff_t end = LLONG_MAX;
unsigned int pflags = current->flags;
- if (rqstp->rq_local)
+ if (test_bit(RQ_LOCAL, &rqstp->rq_flags))
/*
* We want less throttling in balance_dirty_pages()
* and shrink_inactive_list() so that nfs to
@@ -967,10 +989,13 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
fsnotify_modify(file);
if (stable) {
- if (use_wgather)
+ if (use_wgather) {
host_err = wait_for_concurrent_writes(file);
- else
- host_err = vfs_fsync_range(file, offset, offset+*cnt, 0);
+ } else {
+ if (*cnt)
+ end = offset + *cnt - 1;
+ host_err = vfs_fsync_range(file, offset, end, 0);
+ }
}
out_nfserr:
@@ -979,7 +1004,7 @@ out_nfserr:
err = 0;
else
err = nfserrno(host_err);
- if (rqstp->rq_local)
+ if (test_bit(RQ_LOCAL, &rqstp->rq_flags))
tsk_restore_flags(current, pflags, PF_LESS_THROTTLE);
return err;
}