Andreas Kling
08cd75ac4b
Kernel: Rename FileDescriptor to FileDescription.
...
After reading a bunch of POSIX specs, I've learned that a file descriptor
is the number that refers to a file description, not the description itself.
So this patch renames FileDescriptor to FileDescription, and Process now has
FileDescription* file_description(int fd).
2019-06-07 09:36:51 +02:00
Andreas Kling
bba2c062fe
FileSystem: Make Inode::lookup() take a StringView.
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This avoids a lot of String allocation during path resolution.
2019-06-01 18:01:28 +02:00
Andreas Kling
2e14e5891c
FileSystem: Remove now-unused Inode::parent() and Inode::reverse_lookup().
...
These were only used to implement the old path resolution algorithm.
2019-06-01 17:46:37 +02:00
Andreas Kling
9ac95d1867
FileSystem: Pass mode_t to Inode::add_child().
...
This way the Ext2FS code can update its directory entry "file type" fields
correctly based on the file mode. This fixes some e2fsck whining.
2019-05-31 17:41:33 +02:00
Andreas Kling
75b0e5cce5
Ext2FS: Block #0 can terminate an inode block list early.
...
We were already handling this for the indirect blocks, but the direct ones
would happily consider #0 to be a valid block list entry.
2019-05-25 19:19:43 +02:00
Andreas Kling
728327df8a
Ext2FS: Fix build with EXT2_DEBUG enabled, and tweak some variable names.
2019-05-25 17:23:17 +02:00
Andreas Kling
8b249bd09b
Kernel+Userland: Implement mknod() syscall and add a /bin/mknod program.
2019-05-03 22:59:58 +02:00
Andreas Kling
a6d407fec5
Ext2FS: Put some debug spam behind EXT2_DEBUG.
2019-04-28 22:14:37 +02:00
Andreas Kling
899f6a5de2
Ext2FS: Support shrinking inode to a smaller size.
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Factor out inode resizing into a separate Ext2FSInode::resize() function.
This is then called both from write_bytes() and truncate().
This patch finally implements freeing of blocks when an inode shrinks.
2019-04-28 22:07:25 +02:00
Andreas Kling
dde8d90747
Ext2FS: Fix accidental zero-fill when appending to a file.
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We were using the old file size, rather than the new file size, to determine
how much to zero-fill in the last block of a file.
2019-04-27 17:14:27 +02:00
Andreas Kling
e0cdc5db0d
Ext2FS: Reduce debug spam in block allocation.
2019-04-25 22:05:32 +02:00
Andreas Kling
fd500c79d6
Ext2S: Fix off-by-one error in block allocation.
2019-04-23 16:38:45 +02:00
Andreas Kling
b041fc57de
Ext2FS: Bitmaps aren't always at full capacity.
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Block bitmaps only have (blocks_per_group) entries, while inode bitmaps
only have (inodes_per_group) entries.
2019-04-23 16:21:07 +02:00
Andreas Kling
14ceabeca8
Ext2FS: More bitmap misunderstanding cleanups.
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Inode bitmaps are also only ever one block.
2019-04-23 15:07:07 +02:00
Andreas Kling
1bf37db9a9
Ext2FS: Simplify block bitmap stuff.
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Block bitmaps are only ever one block in size. I don't know why I thought
otherwise, but use this info to simplify the code. :^)
2019-04-23 14:51:47 +02:00
Andreas Kling
58240fdb33
Do a pass of compiler warning fixes.
...
This is really making me question not using 64-bit integers more.
2019-04-23 13:00:53 +02:00
Andreas Kling
f9864940eb
Kernel: Move FS-related files into Kernel/FileSystem/
2019-04-03 12:25:24 +02:00
