Files
ladybird/Libraries/LibC
Andreas Kling 5292f6e78f Kernel+FileManager: Disallow watch_file() in unsupported file systems
Currently only Ext2FS and TmpFS supports InodeWatchers. We now fail
with ENOTSUPP if watch_file() is called on e.g ProcFS.

This fixes an issue with FileManager chewing up all the CPU when /proc
was opened. Watchers don't keep the watched Inode open, and when they
close, the watcher FD will EOF.

Since nothing else kept /proc open in FileManager, the watchers created
for it would EOF immediately, causing a refresh over and over.

Fixes #879.
2019-12-15 19:33:39 +01:00
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