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CVS commit: src/sys/kern

Module Name:    src
Committed By:   ad
Date:           Tue May  6 12:54:25 UTC 2008

Modified Files:
        src/sys/kern: vfs_syscalls.c

Log Message:
PR kern/38141 lookup/vfs_busy acquire rwlock recursively

- sys_sync: acquire a write lock on the mount since the operation modifies
  the mount structure.
- sys_fchdir: use vfs_trybusy(). If an unmount is in progress, just fail it.

To generate a diff of this commit:
cvs rdiff -r1.355 -r1.356 src/sys/kern/vfs_syscalls.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

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