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BAN: Implement Ext2 file unlinking

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Ext2 inodes can now be unlinked from directories and after last
inode closes (destructor gets called) we check if link count is 0
and cleanup the inode from filesystem
This commit is contained in:
Bananymous
2023-10-25 21:43:36 +03:00
parent 3566ddab00
commit b7007016c0
9 changed files with 160 additions and 18 deletions
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4
kernel/include/kernel/FS/Inode.h
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@@ -91,7 +91,7 @@ namespace Kernel
BAN::ErrorOr<void> list_next_inodes(off_t, DirectoryEntryList*, size_t);
BAN::ErrorOr<void> create_file(BAN::StringView, mode_t, uid_t, gid_t);
BAN::ErrorOr<void> create_directory(BAN::StringView, mode_t, uid_t, gid_t);
BAN::ErrorOr<void> delete_inode(BAN::StringView);
BAN::ErrorOr<void> unlink(BAN::StringView);
// Link API
BAN::ErrorOr<BAN::String> link_target();
@@ -109,7 +109,7 @@ namespace Kernel
virtual BAN::ErrorOr<void> list_next_inodes_impl(off_t, DirectoryEntryList*, size_t) { return BAN::Error::from_errno(ENOTSUP); }
virtual BAN::ErrorOr<void> create_file_impl(BAN::StringView, mode_t, uid_t, gid_t) { return BAN::Error::from_errno(ENOTSUP); }
virtual BAN::ErrorOr<void> create_directory_impl(BAN::StringView, mode_t, uid_t, gid_t) { return BAN::Error::from_errno(ENOTSUP); }
virtual BAN::ErrorOr<void> delete_inode_impl(BAN::StringView) { return BAN::Error::from_errno(ENOTSUP); }
virtual BAN::ErrorOr<void> unlink_impl(BAN::StringView) { return BAN::Error::from_errno(ENOTSUP); }
// Link API
virtual BAN::ErrorOr<BAN::String> link_target_impl() { return BAN::Error::from_errno(ENOTSUP); }