fs/coda/coda_linux.c

File Facts

System

Linux kernel

Corpus path

fs/coda/coda_linux.c

Extension

.c

Size

5355 bytes

Lines

209

Domain

Core OS

Bucket

VFS And Filesystem Core

Inferred role

Core OS: implementation source

Status

source 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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h
• linux/kernel.h
• linux/time.h
• linux/fs.h
• linux/stat.h
• linux/errno.h
• linux/uaccess.h
• linux/string.h
• linux/coda.h
• coda_psdev.h
• coda_linux.h

Detected Declarations

• function coda_f2s
• function coda_iscontrol
• function coda_flags_to_cflags
• function coda_to_timespec64
• function timespec64_to_coda
• function coda_inode_type
• function coda_vattr_to_iattr
• function coda_iattr_to_vattr

Annotated Snippet

if ( S_ISDIR(mode) ) {
                vattr->va_type = C_VDIR; 
        } else if ( S_ISREG(mode) ) {
                vattr->va_type = C_VREG;
        } else if ( S_ISLNK(mode) ) {
                vattr->va_type = C_VLNK;
        } else {
                /* don't do others */
                vattr->va_type = C_VNON;
        }
#endif 

        /* set those vattrs that need change */
        valid = iattr->ia_valid;
        if ( valid & ATTR_MODE ) {
                vattr->va_mode = iattr->ia_mode;
	}
        if ( valid & ATTR_UID ) {
                vattr->va_uid = (vuid_t) from_kuid(&init_user_ns, iattr->ia_uid);
	}
        if ( valid & ATTR_GID ) {
                vattr->va_gid = (vgid_t) from_kgid(&init_user_ns, iattr->ia_gid);
	}
        if ( valid & ATTR_SIZE ) {
                vattr->va_size = iattr->ia_size;
	}
        if ( valid & ATTR_ATIME ) {
		vattr->va_atime = timespec64_to_coda(iattr->ia_atime);
	}
        if ( valid & ATTR_MTIME ) {
		vattr->va_mtime = timespec64_to_coda(iattr->ia_mtime);
	}
        if ( valid & ATTR_CTIME ) {
		vattr->va_ctime = timespec64_to_coda(iattr->ia_ctime);
	}
}

Annotation

• Immediate include surface: `linux/types.h`, `linux/kernel.h`, `linux/time.h`, `linux/fs.h`, `linux/stat.h`, `linux/errno.h`, `linux/uaccess.h`, `linux/string.h`.
• Detected declarations: `function coda_f2s`, `function coda_iscontrol`, `function coda_flags_to_cflags`, `function coda_to_timespec64`, `function timespec64_to_coda`, `function coda_inode_type`, `function coda_vattr_to_iattr`, `function coda_iattr_to_vattr`.
• Atlas domain: Core OS / VFS And Filesystem Core.
• Implementation status: source implementation candidate.

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.