新文件创建inode分配路径

最新推荐文章于 2025-01-04 18:09:38 发布

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最新推荐文章于 2025-01-04 18:09:38 发布 · 170 阅读

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#文件系统 #Linux #存储

文章详细描述了在EXT4文件系统中创建新inode的过程，包括handle的使用、权限设置、操作指针初始化以及错误处理机制。核心函数是ext4_new_inode及其关联的处理流程。

#0  __ext4_new_inode (handle=0x0 <irq_stack_union>, dir=0xffff880006478508, mode=33206,	qstr=0xffff8800064829e0, goal=105350408, owner=0x81b6 <exception_stacks+16822>,	handle_type=4, line_no=2472, nblocks=35)
    at fs/ext4/ialloc.c:750
#1  0xffffffff811fbc03 in ext4_create (dir=0xffff880006478508, dentry=0xffff880006478508, mode=33206, excl=224)	at fs/ext4/namei.c:2471
#2  0xffffffff81183880 in lookup_open (opened=<optimized out>, got_write=<optimized out>, op=<optimized out>, file=<optimized out>, path=<optimized out>, nd=<optimized out>) at fs/namei.c:3152
#3  do_last (opened=<optimized out>, op=<optimized out>, file=<optimized out>, nd=<optimized out>) at fs/namei.c:3243
#4  path_openat (nd=0xffffc900018f7de8,	op=0xffffc900018f7efc, flags=33206) at fs/namei.c:3454
#5  0xffffffff81183f39 in do_filp_open (dfd=0, pathname=0xffff880006478508, op=0xffffc900018f7efc) at fs/namei.c:3489
#6  0xf