45 lines
854 B
C
45 lines
854 B
C
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#include <defs.h>
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#include <sem.h>
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#include <sfs.h>
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/*
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* lock_sfs_fs - lock the process of SFS Filesystem Rd/Wr Disk Block
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*
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* called by: sfs_load_inode, sfs_sync, sfs_reclaim
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*/
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void
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lock_sfs_fs(struct sfs_fs *sfs) {
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down(&(sfs->fs_sem));
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}
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/*
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* lock_sfs_io - lock the process of SFS File Rd/Wr Disk Block
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*
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* called by: sfs_rwblock, sfs_clear_block, sfs_sync_super
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*/
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void
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lock_sfs_io(struct sfs_fs *sfs) {
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down(&(sfs->io_sem));
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}
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/*
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* unlock_sfs_fs - unlock the process of SFS Filesystem Rd/Wr Disk Block
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*
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* called by: sfs_load_inode, sfs_sync, sfs_reclaim
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*/
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void
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unlock_sfs_fs(struct sfs_fs *sfs) {
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up(&(sfs->fs_sem));
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}
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/*
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* unlock_sfs_io - unlock the process of sfs Rd/Wr Disk Block
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*
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* called by: sfs_rwblock sfs_clear_block sfs_sync_super
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*/
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void
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unlock_sfs_io(struct sfs_fs *sfs) {
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up(&(sfs->io_sem));
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}
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