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ProcFS: Take the "all inodes" lock when generating /proc/inodes
Otherwise the kernel asserts.
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parent
086522537e
commit
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3 changed files with 8 additions and 0 deletions
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@ -41,6 +41,11 @@ namespace Kernel {
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static SpinLock s_all_inodes_lock;
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static SpinLock s_all_inodes_lock;
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static AK::Singleton<InlineLinkedList<Inode>> s_list;
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static AK::Singleton<InlineLinkedList<Inode>> s_list;
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SpinLock<u32>& Inode::all_inodes_lock()
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{
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return s_all_inodes_lock;
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}
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InlineLinkedList<Inode>& Inode::all_with_lock()
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InlineLinkedList<Inode>& Inode::all_with_lock()
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{
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{
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ASSERT(s_all_inodes_lock.is_locked());
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ASSERT(s_all_inodes_lock.is_locked());
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@ -120,6 +120,8 @@ public:
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Inode* m_next { nullptr };
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Inode* m_next { nullptr };
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Inode* m_prev { nullptr };
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Inode* m_prev { nullptr };
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static SpinLock<u32>& all_inodes_lock();
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protected:
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protected:
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Inode(FS& fs, unsigned index);
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Inode(FS& fs, unsigned index);
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void set_metadata_dirty(bool);
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void set_metadata_dirty(bool);
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@ -914,6 +914,7 @@ static Optional<KBuffer> procfs$inodes(InodeIdentifier)
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{
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{
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KBufferBuilder builder;
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KBufferBuilder builder;
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InterruptDisabler disabler;
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InterruptDisabler disabler;
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ScopedSpinLock all_inodes_lock(Inode::all_inodes_lock());
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for (auto& inode : Inode::all_with_lock()) {
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for (auto& inode : Inode::all_with_lock()) {
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builder.appendf("Inode{K%x} %02u:%08u (%u)\n", &inode, inode.fsid(), inode.index(), inode.ref_count());
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builder.appendf("Inode{K%x} %02u:%08u (%u)\n", &inode, inode.fsid(), inode.index(), inode.ref_count());
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}
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}
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