fs/quota/quota_v2.c
Source file repositories/reference/linux-study-clean/fs/quota/quota_v2.c
File Facts
- System
- Linux kernel
- Corpus path
fs/quota/quota_v2.c- Extension
.c- Size
- 13625 bytes
- Lines
- 456
- Domain
- Core OS
- Bucket
- VFS And Filesystem Core
- Inferred role
- Core OS: exported/initcall integration point
- Status
- integration implementation candidate
Why This File Exists
Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
- Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
- Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
- Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
- Allocates kernel memory; connect allocation flags and lifetime to context constraints.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/errno.hlinux/fs.hlinux/mount.hlinux/dqblk_v2.hlinux/kernel.hlinux/init.hlinux/module.hlinux/slab.hlinux/quotaops.hasm/byteorder.hquota_tree.hquotaio_v2.h
Detected Declarations
function v2_stoqbfunction v2_qbtosfunction v2_read_headerfunction v2_check_quota_filefunction v2_read_file_infofunction i_size_readfunction v2_write_file_infofunction v2r0_disk2memdqbfunction v2r0_mem2diskdqbfunction v2r0_is_idfunction v2r1_disk2memdqbfunction v2r1_mem2diskdqbfunction v2r1_is_idfunction v2_read_dquotfunction v2_write_dquotfunction v2_release_dquotfunction v2_free_file_infofunction v2_get_next_idfunction init_v2_quota_formatfunction exit_v2_quota_formatmodule init init_v2_quota_format
Annotated Snippet
module_init(init_v2_quota_format);
module_exit(exit_v2_quota_format);Annotation
- Immediate include surface: `linux/errno.h`, `linux/fs.h`, `linux/mount.h`, `linux/dqblk_v2.h`, `linux/kernel.h`, `linux/init.h`, `linux/module.h`, `linux/slab.h`.
- Detected declarations: `function v2_stoqb`, `function v2_qbtos`, `function v2_read_header`, `function v2_check_quota_file`, `function v2_read_file_info`, `function i_size_read`, `function v2_write_file_info`, `function v2r0_disk2memdqb`, `function v2r0_mem2diskdqb`, `function v2r0_is_id`.
- Atlas domain: Core OS / VFS And Filesystem Core.
- Implementation status: integration implementation candidate.
- Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.