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authorMiklos Szeredi <mszeredi@redhat.com>2021-10-22 17:03:02 +0200
committerMiklos Szeredi <mszeredi@redhat.com>2021-10-28 09:45:32 +0200
commitd347739a0e760e9f370aa021da3feacc37d3e511 (patch)
tree7af86ada5e4c3f6dbb41103b0260fb9780d59104 /fs/fuse
parent27ae449ba26eb6c1cd217fa28339841c55bc79e1 (diff)
fuse: always invalidate attributes after writes
Extend the fuse_write_update_attr() helper to invalidate cached attributes after a write. This has already been done in all cases except in fuse_notify_store(), so this is mostly a cleanup. fuse_direct_write_iter() calls fuse_direct_IO() which already calls fuse_write_update_attr(), so don't repeat that again in the former. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/fuse')
-rw-r--r--fs/fuse/dax.c5
-rw-r--r--fs/fuse/dev.c2
-rw-r--r--fs/fuse/file.c26
-rw-r--r--fs/fuse/fuse_i.h2
4 files changed, 15 insertions, 20 deletions
diff --git a/fs/fuse/dax.c b/fs/fuse/dax.c
index a73bae6497b0..713818d74de6 100644
--- a/fs/fuse/dax.c
+++ b/fs/fuse/dax.c
@@ -732,11 +732,8 @@ static ssize_t fuse_dax_direct_write(struct kiocb *iocb, struct iov_iter *from)
ssize_t ret;
ret = fuse_direct_io(&io, from, &iocb->ki_pos, FUSE_DIO_WRITE);
- if (ret < 0)
- return ret;
- fuse_invalidate_attr_mask(inode, FUSE_STATX_MODSIZE);
- fuse_write_update_attr(inode, iocb->ki_pos);
+ fuse_write_update_attr(inode, iocb->ki_pos, ret);
return ret;
}
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 75ae30d568ea..337fa6f5a7c6 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1591,7 +1591,7 @@ static int fuse_notify_store(struct fuse_conn *fc, unsigned int size,
end = outarg.offset + outarg.size;
if (end > file_size) {
file_size = end;
- fuse_write_update_attr(inode, file_size);
+ fuse_write_update_attr(inode, file_size, outarg.size);
}
num = outarg.size;
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index b5f37b8df0e0..c3fd88da2a0b 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1066,7 +1066,7 @@ static ssize_t fuse_send_write(struct fuse_io_args *ia, loff_t pos,
return err ?: ia->write.out.size;
}
-bool fuse_write_update_attr(struct inode *inode, loff_t pos)
+bool fuse_write_update_attr(struct inode *inode, loff_t pos, ssize_t written)
{
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
@@ -1074,12 +1074,14 @@ bool fuse_write_update_attr(struct inode *inode, loff_t pos)
spin_lock(&fi->lock);
fi->attr_version = atomic64_inc_return(&fc->attr_version);
- if (pos > inode->i_size) {
+ if (written > 0 && pos > inode->i_size) {
i_size_write(inode, pos);
ret = true;
}
spin_unlock(&fi->lock);
+ fuse_invalidate_attr_mask(inode, FUSE_STATX_MODSIZE);
+
return ret;
}
@@ -1262,11 +1264,8 @@ static ssize_t fuse_perform_write(struct kiocb *iocb,
kfree(ap->pages);
} while (!err && iov_iter_count(ii));
- if (res > 0)
- fuse_write_update_attr(inode, pos);
-
+ fuse_write_update_attr(inode, pos, res);
clear_bit(FUSE_I_SIZE_UNSTABLE, &fi->state);
- fuse_invalidate_attr_mask(inode, FUSE_STATX_MODSIZE);
return res > 0 ? res : err;
}
@@ -1554,11 +1553,9 @@ static ssize_t fuse_direct_write_iter(struct kiocb *iocb, struct iov_iter *from)
} else {
res = fuse_direct_io(&io, from, &iocb->ki_pos,
FUSE_DIO_WRITE);
+ fuse_write_update_attr(inode, iocb->ki_pos, res);
}
}
- fuse_invalidate_attr_mask(inode, FUSE_STATX_MODSIZE);
- if (res > 0)
- fuse_write_update_attr(inode, iocb->ki_pos);
inode_unlock(inode);
return res;
@@ -2900,9 +2897,8 @@ fuse_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
kref_put(&io->refcnt, fuse_io_release);
if (iov_iter_rw(iter) == WRITE) {
- if (ret > 0)
- fuse_write_update_attr(inode, pos);
- else if (ret < 0 && offset + count > i_size)
+ fuse_write_update_attr(inode, pos, ret);
+ if (ret < 0 && offset + count > i_size)
fuse_do_truncate(file);
}
@@ -2990,7 +2986,8 @@ static long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
/* we could have extended the file */
if (!(mode & FALLOC_FL_KEEP_SIZE)) {
- bool changed = fuse_write_update_attr(inode, offset + length);
+ bool changed = fuse_write_update_attr(inode, offset + length,
+ length);
if (changed && fm->fc->writeback_cache)
file_update_time(file);
@@ -3108,7 +3105,8 @@ static ssize_t __fuse_copy_file_range(struct file *file_in, loff_t pos_in,
ALIGN(pos_out + outarg.size, PAGE_SIZE) - 1);
if (fc->writeback_cache) {
- fuse_write_update_attr(inode_out, pos_out + outarg.size);
+ fuse_write_update_attr(inode_out, pos_out + outarg.size,
+ outarg.size);
file_update_time(file_out);
}
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 7f5847a48b4b..66c410a733c1 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1217,7 +1217,7 @@ long fuse_ioctl_common(struct file *file, unsigned int cmd,
__poll_t fuse_file_poll(struct file *file, poll_table *wait);
int fuse_dev_release(struct inode *inode, struct file *file);
-bool fuse_write_update_attr(struct inode *inode, loff_t pos);
+bool fuse_write_update_attr(struct inode *inode, loff_t pos, ssize_t written);
int fuse_flush_times(struct inode *inode, struct fuse_file *ff);
int fuse_write_inode(struct inode *inode, struct writeback_control *wbc);