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authorLinus Torvalds <torvalds@linux-foundation.org>2021-07-06 11:17:41 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-07-06 11:17:41 -0700
commit8e4f3e15175ffab5d2126dc8e7c8cfcc1654a5aa (patch)
tree6d4494cd67c283f214e82969e9f9461c0d5ba75d /fs/fuse/file.c
parent729437e334a9d9e079e2be9a42629316bee8a17e (diff)
parentc4e0cd4e0c16544ff0afecf07a5fe17de6077233 (diff)
downloadlinux-8e4f3e15175ffab5d2126dc8e7c8cfcc1654a5aa.tar.bz2
Merge tag 'fuse-update-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi: - Fixes for virtiofs submounts - Misc fixes and cleanups * tag 'fuse-update-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: virtiofs: Fix spelling mistakes fuse: use DIV_ROUND_UP helper macro for calculations fuse: fix illegal access to inode with reused nodeid fuse: allow fallocate(FALLOC_FL_ZERO_RANGE) fuse: Make fuse_fill_super_submount() static fuse: Switch to fc_mount() for submounts fuse: Call vfs_get_tree() for submounts fuse: add dedicated filesystem context ops for submounts virtiofs: propagate sync() to file server fuse: reject internal errno fuse: check connected before queueing on fpq->io fuse: ignore PG_workingset after stealing fuse: Fix infinite loop in sget_fc() fuse: Fix crash if superblock of submount gets killed early fuse: Fix crash in fuse_dentry_automount() error path
Diffstat (limited to 'fs/fuse/file.c')
-rw-r--r--fs/fuse/file.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 4722fa31a185..97f860cfc195 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -645,7 +645,7 @@ static ssize_t fuse_get_res_by_io(struct fuse_io_priv *io)
* == bytes_transferred or rw == WRITE, the caller sets 'pos' to -1.
*
* An example:
- * User requested DIO read of 64K. It was splitted into two 32K fuse requests,
+ * User requested DIO read of 64K. It was split into two 32K fuse requests,
* both submitted asynchronously. The first of them was ACKed by userspace as
* fully completed (req->out.args[0].size == 32K) resulting in pos == -1. The
* second request was ACKed as short, e.g. only 1K was read, resulting in
@@ -1403,7 +1403,7 @@ static int fuse_get_user_pages(struct fuse_args_pages *ap, struct iov_iter *ii,
nbytes += ret;
ret += start;
- npages = (ret + PAGE_SIZE - 1) / PAGE_SIZE;
+ npages = DIV_ROUND_UP(ret, PAGE_SIZE);
ap->descs[ap->num_pages].offset = start;
fuse_page_descs_length_init(ap->descs, ap->num_pages, npages);
@@ -2905,11 +2905,13 @@ static long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
};
int err;
bool lock_inode = !(mode & FALLOC_FL_KEEP_SIZE) ||
- (mode & FALLOC_FL_PUNCH_HOLE);
+ (mode & (FALLOC_FL_PUNCH_HOLE |
+ FALLOC_FL_ZERO_RANGE));
bool block_faults = FUSE_IS_DAX(inode) && lock_inode;
- if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
+ if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |
+ FALLOC_FL_ZERO_RANGE))
return -EOPNOTSUPP;
if (fm->fc->no_fallocate)
@@ -2924,7 +2926,7 @@ static long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
goto out;
}
- if (mode & FALLOC_FL_PUNCH_HOLE) {
+ if (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_ZERO_RANGE)) {
loff_t endbyte = offset + length - 1;
err = fuse_writeback_range(inode, offset, endbyte);
@@ -2964,7 +2966,7 @@ static long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
file_update_time(file);
}
- if (mode & FALLOC_FL_PUNCH_HOLE)
+ if (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_ZERO_RANGE))
truncate_pagecache_range(inode, offset, offset + length - 1);
fuse_invalidate_attr(inode);