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authorAl Viro <viro@zeniv.linux.org.uk>2013-03-20 13:04:20 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2013-04-09 14:12:56 -0400
commit03d95eb2f2578083a3f6286262e1cb5d88a00c02 (patch)
treea82585b55080628e0ba0028dfb100886bf5b4099 /fs
parentswitch compat readv/writev variants to COMPAT_SYSCALL_DEFINE (diff)
downloadlinux-dev-03d95eb2f2578083a3f6286262e1cb5d88a00c02.tar.xz
linux-dev-03d95eb2f2578083a3f6286262e1cb5d88a00c02.zip
lift sb_start_write() out of ->write()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
-rw-r--r--fs/cachefiles/rdwr.c2
-rw-r--r--fs/coda/file.c2
-rw-r--r--fs/coredump.c2
-rw-r--r--fs/read_write.c24
-rw-r--r--fs/splice.c2
5 files changed, 22 insertions, 10 deletions
diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
index 480992259707..317f9ee9c991 100644
--- a/fs/cachefiles/rdwr.c
+++ b/fs/cachefiles/rdwr.c
@@ -962,12 +962,14 @@ int cachefiles_write_page(struct fscache_storage *op, struct page *page)
}
data = kmap(page);
+ file_start_write(file);
old_fs = get_fs();
set_fs(KERNEL_DS);
ret = file->f_op->write(
file, (const void __user *) data, len, &pos);
set_fs(old_fs);
kunmap(page);
+ file_end_write(file);
if (ret != len)
ret = -EIO;
}
diff --git a/fs/coda/file.c b/fs/coda/file.c
index fa4c100bdc7d..380b798f8443 100644
--- a/fs/coda/file.c
+++ b/fs/coda/file.c
@@ -79,6 +79,7 @@ coda_file_write(struct file *coda_file, const char __user *buf, size_t count, lo
return -EINVAL;
host_inode = file_inode(host_file);
+ file_start_write(host_file);
mutex_lock(&coda_inode->i_mutex);
ret = host_file->f_op->write(host_file, buf, count, ppos);
@@ -87,6 +88,7 @@ coda_file_write(struct file *coda_file, const char __user *buf, size_t count, lo
coda_inode->i_blocks = (coda_inode->i_size + 511) >> 9;
coda_inode->i_mtime = coda_inode->i_ctime = CURRENT_TIME_SEC;
mutex_unlock(&coda_inode->i_mutex);
+ file_end_write(host_file);
return ret;
}
diff --git a/fs/coredump.c b/fs/coredump.c
index c6479658d487..288e5c9f9bbe 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -629,9 +629,11 @@ void do_coredump(siginfo_t *siginfo)
goto close_fail;
if (displaced)
put_files_struct(displaced);
+ file_start_write(cprm.file);
retval = binfmt->core_dump(&cprm);
if (retval)
current->signal->group_exit_code |= 0x80;
+ file_end_write(cprm.file);
if (ispipe && core_pipe_limit)
wait_for_dump_helpers(cprm.file);
diff --git a/fs/read_write.c b/fs/read_write.c
index e6dd1c2d0592..a1f4d44cbc03 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -398,7 +398,6 @@ ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, lof
struct kiocb kiocb;
ssize_t ret;
- file_start_write(filp);
init_sync_kiocb(&kiocb, filp);
kiocb.ki_pos = *ppos;
kiocb.ki_left = len;
@@ -414,7 +413,6 @@ ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, lof
if (-EIOCBQUEUED == ret)
ret = wait_on_sync_kiocb(&kiocb);
*ppos = kiocb.ki_pos;
- file_end_write(filp);
return ret;
}
@@ -458,6 +456,7 @@ ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_
ret = rw_verify_area(WRITE, file, pos, count);
if (ret >= 0) {
count = ret;
+ file_start_write(file);
if (file->f_op->write)
ret = file->f_op->write(file, buf, count, pos);
else
@@ -467,6 +466,7 @@ ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_
add_wchar(current, ret);
}
inc_syscw(current);
+ file_end_write(file);
}
return ret;
@@ -758,16 +758,18 @@ static ssize_t do_readv_writev(int type, struct file *file,
} else {
fn = (io_fn_t)file->f_op->write;
fnv = file->f_op->aio_write;
+ file_start_write(file);
}
- if (fnv) {
- file_start_write(file);
+ if (fnv)
ret = do_sync_readv_writev(file, iov, nr_segs, tot_len,
pos, fnv);
- file_end_write(file);
- } else
+ else
ret = do_loop_readv_writev(file, iov, nr_segs, pos, fn);
+ if (type != READ)
+ file_end_write(file);
+
out:
if (iov != iovstack)
kfree(iov);
@@ -936,16 +938,18 @@ static ssize_t compat_do_readv_writev(int type, struct file *file,
} else {
fn = (io_fn_t)file->f_op->write;
fnv = file->f_op->aio_write;
+ file_start_write(file);
}
- if (fnv) {
- file_start_write(file);
+ if (fnv)
ret = do_sync_readv_writev(file, iov, nr_segs, tot_len,
pos, fnv);
- file_end_write(file);
- } else
+ else
ret = do_loop_readv_writev(file, iov, nr_segs, pos, fn);
+ if (type != READ)
+ file_end_write(file);
+
out:
if (iov != iovstack)
kfree(iov);
diff --git a/fs/splice.c b/fs/splice.c
index 29e394e49ddd..e78a749064db 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1052,7 +1052,9 @@ static int write_pipe_buf(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
loff_t tmp = sd->pos;
data = buf->ops->map(pipe, buf, 0);
+ file_start_write(sd->u.file);
ret = __kernel_write(sd->u.file, data + buf->offset, sd->len, &tmp);
+ file_end_write(sd->u.file);
buf->ops->unmap(pipe, buf, data);
return ret;