able/ext2-rs
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update update_global method on Ext2

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This commit is contained in:
Szymon Walter 2018-03-19 19:41:45 +01:00
parent fb1b5bdef5
commit 1415941a96
1 changed files with 22 additions and 7 deletions
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29
src/fs.rs
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@ -1,3 +1,4 @@
use core::mem;
use alloc::Vec; use alloc::Vec;
use error::Error; use error::Error;
@ -53,13 +54,27 @@ where
}) })
} }
pub fn update(&mut self) -> Result<(), Error> { pub fn update_global(&mut self) -> Result<(), Error> {
let slice = BufferSlice::from_cast( // superblock
&self.superblock.inner, {
self.superblock.offset, let slice = BufferSlice::from_cast(
); &self.superblock.inner,
let commit = slice.commit(); self.superblock.offset,
self.buffer.commit(commit).map_err(|err| Error::from(err)) );
let commit = slice.commit();
self.buffer.commit(commit).map_err(|err| Error::from(err))?;
}
// block group descriptors
let mut offset = self.block_groups.offset;
for descr in &self.block_groups.inner {
let slice = BufferSlice::from_cast(descr, offset);
let commit = slice.commit();
self.buffer.commit(commit).map_err(|err| Error::from(err))?;
offset += mem::size_of::<BlockGroupDescriptor>();
}
Ok(())
} }
fn superblock(&self) -> &Superblock { fn superblock(&self) -> &Superblock {